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Journal articles on the topic 'Alcohol synthesis'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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1

Zhyznevskiy, Vyacheslav, Volodymyr Gumenetskiy, Olena Shyshchak, and Yevhen Fedevych. "The use of isobutyl alcohol for methacrylate synthesis." Chemistry & Chemical Technology 5, no. 3 (September 15, 2011): 277–84. http://dx.doi.org/10.23939/chcht05.03.277.

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2

Sohilait, Hanoch J., Hardjono Sastrohamidjojo, and Sabirin Matsjeh. "SYNTHESIS OF SECONDARY ALCOHOL COMPOUNDS FROM SAFROLE AND METHYLEUGENOL." Indonesian Journal of Chemistry 3, no. 3 (June 9, 2010): 176–78. http://dx.doi.org/10.22146/ijc.21885.

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Synthesis of secondary alcohols compound from safrole and methyleugenol has been achieved through conversion of allyl group to alcohol.The reaction of safrole and methyleugenol with mercuric acetate in aqueous tetrahydrofuran, followed by in situ reduction of the mercurial intermediate by alkaline sodium borohydride produced secondary alcohol namely safryl alcohol (71.25%) and methyleugenil alcohol (65.56%). The structure elucidation of these products were analyzed by FTIR, 1H-NMR, 13C-NMR and MS. Keywords: Secondary alcohols; safrole; methyleugenol

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3

Honmute, Sindhu, Arunkumar Lagashetty, and A. Venkataraman A. Venkataraman. "Synthesis and Characterisation of Polyaniline-Polyvinyl Alcohol-NiO Nanocomposite Film." Indian Journal of Applied Research 3, no. 8 (October 1, 2011): 91–93. http://dx.doi.org/10.15373/2249555x/aug2013/29.

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4

Fediv, V. I. "Synthesis route and optical characterization of CdS:Mn/polyvinyl alcohol nanocomposite." Semiconductor Physics Quantum Electronics and Optoelectronics 15, no. 2 (May 30, 2012): 117–23. http://dx.doi.org/10.15407/spqeo15.02.117.

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5

Bildi, Özge Ceren, Barış Şimşek, and Osman Nuri Şara. "SYNTHESIS AND CHARACTERIZATION OF POLYVINYL ALCOHOL/CALCIUM CARBONATE COMPOSITE FILM." E-journal of New World Sciences Academy 15, no. 2 (April 30, 2020): 49–53. http://dx.doi.org/10.12739/nwsa.2020.15.2.3a0096.

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6

Milosavljevic, Milutin, Aleksandar Marinkovic, Jelena Markovic, Danijela Brkovic, and Milan Milosavljevic. "Synthesis of tetraalkyl thiuram disulfides using different oxidants in recycling solvent mixture." Chemical Industry and Chemical Engineering Quarterly 18, no. 1 (2012): 73–81. http://dx.doi.org/10.2298/ciceq110726048m.

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A new optimized laboratory synthesis of tetraalkyl thiuram disulfides, starting from dialkyl amines and carbon disulfide in presence of three oxidants (hydrogen peroxide, potassium peroxodisulfate and sodium hypochlorite) and appropriate reaction medium: two mixtures of isopropyl alcohol - water used in two consecutive syntheses, was presented in this work. First synthesis was performed in a recycled azeotropic mixture of isopropyl alcohol - water 87.7% - 12.3%, and second in a filtrate obtained after first synthesis, which was a mixture of isopropyl alcohol - water 70.4% - 29.6%. After the second synthesis and filtration, recycled azeotropic mixture isopropyl alcohol - water 87.7% - 12.3% was regenerated from the filtrate by rectification. Considering this, the technology for beneficial use of recycling isopropyl alcohol - water mixture as reaction medium for tetraalkyl thiuram disulfides synthesis was developed. Such concept contributes to extraordinary economical benefit of implemented optimal laboratory synthesis at semi-industrial level. High yields of tetraalkyl thiuram disulfides syntheses were obtained at both laboratory and semiindustrial level. Structure and purity of synthesized compounds were confirmed by elemental analysis, as well as FTIR, 1H and 13C NMR, and MS spectral data.

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7

Dong, Xu, Xiao Hui Zhang, Ming Hui Zhou, Wen Huan Wang, and Jing Chang Wang. "Synthesis of Guerbet Alcohol Acrylate Aided by Microwave." Advanced Materials Research 860-863 (December 2013): 1007–11. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.1007.

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Guerbet alcohol acrylate was synthesized using acrylic acid and guerbet alcohol alcohols as reactants, p-toluenesulfonic acid as catalyst, hydroquinone as polymerization inhibitor and toluol as solvent by microwave irradiation heating instead of the conventional heating with oil bath. The structure of product was characterized by FT-IR, 1H-NMR, 13C-NMR and the effect of different reaction parameters was discussed in this paper. A procedure for the generation of fairly clean guerbet alcohol acrylate is well developed and the results indicated that under the appropriate reaction conditions the esterification rate of guerbet alcohol acrylate could be achieved above 98%.

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8

Mishra, Satyendra, and Sejal Patel. "Design, Synthesis, and Anti-bacterial Activity of Novel Deoxycholic Acid- Amino Alcohol Conjugates." Medicinal Chemistry 16, no. 3 (April 17, 2020): 385–91. http://dx.doi.org/10.2174/1573406415666190206231002.

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Background: Numerous synthetic bile acid derivatives have been recognized for their various biological activities. Among these, bile acid amides have emerged as an attractive antibacterial agent. We herein illustrate the synthesis and antibacterial evaluation of deoxycholic acidamino alcohols conjugates. Objective: Design and Synthesis of novel deoxycholic acid-amino alcohol conjugates to investigate their antibacterial activity against E. coli and S. aureus. Methods: Novel deoxycholic acid-amino alcohol conjugates were synthesized, from conjugation of deoxycholic acid-NHS ester with amino alcohols. Various amino alcohols moieties were appended to the C24 position of deoxycholic acid to yield deoxycholic acid-amino alcohol conjugates. All the synthesized compounds were characterized by 1H NMR, 13C NMR, IR and massspectroscopy. The entire synthesized deoxycholic acid-amino alcohol conjugates were evaluated for their antibacterial activity against E. coli and S. aureus using the broth dilution method. Results: The outcome illustrated that some of the novel deoxycholic acid-amino alcohol conjugates exhibited enhanced anti-bacterial activities. Amongst them, deoxycholic acid-amino alcohol conjugate containing (-R)-2-aminocyclohexanol (1) demonstrated promising efficacy against both strains S. aureus ATCC 25923 (MIC 15 μg/mL) and E. coli ATCC 25922 (MIC 45 μg/mL) and was identified as a lead molecule. Conclusion: Numbers of novel deoxycholic acid-amino alcohol conjugates were synthesized and their antimicrobial activities provided useful information that the potency was strongly depending on the structures of deoxycholic acid-amino alcohol conjugates.

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9

Forzatti, Pio, Enrico Tronconi, and Italo Pasquon. "Higher Alcohol Synthesis." Catalysis Reviews 33, no. 1-2 (February 1991): 109–68. http://dx.doi.org/10.1080/01614949108020298.

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10

Lang, Charles H., Robert A. Frost, and Thomas C. Vary. "Skeletal muscle protein synthesis and degradation exhibit sexual dimorphism after chronic alcohol consumption but not acute intoxication." American Journal of Physiology-Endocrinology and Metabolism 292, no. 6 (June 2007): E1497—E1506. http://dx.doi.org/10.1152/ajpendo.00603.2006.

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Epidemiological evidence suggests alcoholic myopathy is more severe in females than males, but comparable animal studies are lacking that make elucidating the biochemical locus for this defect problematic. The present study determined whether skeletal muscle protein synthesis and markers of degradation exhibit a sexual dimorphic response to either chronic alcohol consumption or acute intoxication. Male and female rats were fed an alcohol-containing diet, pair-fed for 26 wk (chronic), or received an intraperitoneal injection of alcohol (acute). In males, chronic alcohol decreased gastrocnemius protein synthesis by 20%. This reduction was associated with a twofold increase in the inactive eukaryotic initiation factor (eIF) 4E·4E-binding protein 1 (4E-BP1) complex and a 60% reduction in the active eIF4E·eIF4G complex. This redistribution of eIF4E was associated with decreased phosphorylation of both 4E-BP1 and eIF4G (50–55%). The phosphorylation of ribosomal protein S6 was also reduced 60% in alcohol-consuming male rats. In contrast, neither rates of protein synthesis nor indexes of translation initiation in muscle were altered in alcohol-fed female rats despite blood alcohol levels comparable to males. Chronic alcohol ingestion did not alter atrogin-1 or muscle RING finger-1 mRNA content (biomarkers of muscle proteolysis) in males but increased their expression in females 50–100%. Acute alcohol intoxication produced a comparable decrease in muscle protein synthesis and translation initiation in both male and female rats. Our data demonstrate a sexual dimorphism for muscle protein synthesis, translation initiation, and proteolysis in response to chronic, but not acute, alcohol intoxication; however, they do not support evidence indicating females are more sensitive toward the development of alcoholic skeletal muscle myopathy.

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11

Alyea, Elm C., Dasen He, and Jueh Wang. "Alcohol synthesis from syngas." Applied Catalysis A: General 104, no. 1 (October 1993): 77–85. http://dx.doi.org/10.1016/0926-860x(93)80211-8.

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12

Bandar, Jeffrey, and Chaosheng Luo. "Synthesis of β-Phenethyl Ethers by Base-Catalyzed Alcohol Addition Reactions to Aryl Alkenes." Synlett 29, no. 17 (June 25, 2018): 2218–24. http://dx.doi.org/10.1055/s-0037-1610166.

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The direct anti-Markovnikov addition of alcohols to styrene derivatives represents a streamlined route to β-phenethyl ethers, a substructure frequently found in pharmaceuticals and other bioactive molecules. Here, we discuss how the development of such a reaction can complement and address limitations of current methods for β-phenethyl ether synthesis. In particular, we highlight our recent approach toward achieving this challenging alcohol addition reaction through P4-t-Bu superbase catalysis. A summary of compatible aryl alkenes and alcohols is provided to inform readers of potential applications of this new catalytic transformation, as well as its current limitations and future directions.1 Introduction2 Anti-Markovnikov Alcohol Addition to Aryl Alkenes: Background3 Superbase-Catalyzed Alcohol Addition to Aryl Alkenes4 Summary and Outlook

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13

Xu, Feng Ying, and Gui Zhen Fang. "Characterization and Synthesis of a Betaxolol Hydrochloride Intermediate." Advanced Materials Research 652-654 (January 2013): 770–73. http://dx.doi.org/10.4028/www.scientific.net/amr.652-654.770.

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In this paper, a new method was developed to synthesize betaxolol hydrochloride intermediate (1-[4-(2-Hydroxyethyl) phenoxy]-2, 3-epoxypropane). Based on the acidity difference of phenolic hydroxyl and alcoholic hydroxyl in p-hydroxyphenylethyl alcohol, the betaxolol hydrochloride intermediate was synthesized by selective A.W.Williamson etherification between p-hydroxyphenylethyl alcohol and epichlorohydrin in 18% potassium carbonate-acetone alkalescent solution. The molar ratio of p-hydroxyphenylethyl alcohol and epichlorohydrin was fixed at 1:1.7. FTIR and HPLC analysis revealed that the product purity reached 96% and the yield was 68.18%. This method simplified the synthetic process of betaxolol hydrochloride, which would also result in higher yield and purity of betaxolol hydrochloride products.

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14

Laufenberg, Lacee J., Kristen T. Crowell, and Charles H. Lang. "Alcohol Acutely Antagonizes Refeeding-Induced Alterations in the Rag GTPase-Ragulator Complex in Skeletal Muscle." Nutrients 13, no. 4 (April 9, 2021): 1236. http://dx.doi.org/10.3390/nu13041236.

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The Ragulator protein complex is critical for directing the Rag GTPase proteins and mTORC1 to the lysosome membrane mediating amino acid-stimulated protein synthesis. As there is a lack of evidence on alcohol’s effect on the Rag-Ragulator complex as a possible mechanism for the development of alcoholic skeletal muscle wasting, the aim of our study was to examine alterations in various protein–protein complexes in the Rag-Ragulator pathway produced acutely by feeding and how these are altered by alcohol under in vivo conditions. Mice (C57Bl/6; adult males) were fasted, and then provided rodent chow for 30 min (“refed”) or remained food-deprived (“fasted”). Mice subsequently received ethanol (3 g/kg ethanol) or saline intraperitoneally, and hindlimb muscles were collected 1 h thereafter for analysis. Refeeding-induced increases in myofibrillar and sarcoplasmic protein synthesis, and mTOR and S6K1 phosphorylation, were prevented by alcohol. This inhibition was not associated with a differential rise in the intracellular leucine concentration or plasma leucine or insulin levels. Alcohol increased the amount of the Sestrin1•GATOR2 complex in the fasted state and prevented the refeeding-induced decrease in Sestrin1•GATOR2 seen in control mice. Alcohol antagonized the increase in the RagA/C•Raptor complex formation seen in the refed state. Alcohol antagonized the increase in Raptor with immunoprecipitated LAMPTOR1 (part of the Ragulator complex) after refeeding and decreased the association of RagC with LAMPTOR1. Finally, alcohol increased the association of the V1 domain of v-ATPase with LAMPTOR1 and prevented the refeeding-induced decrease in v-ATPase V1 with LAMPTOR1. Overall, these data demonstrate that acute alcohol intake disrupts multiple protein–protein complexes within the Rag-Ragulator complex, which are associated with and consistent with the concomitant decline in nutrient-stimulated muscle protein synthesis under in vivo conditions.

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15

Makareviciene, Violeta, and Egle Sendzikiene. "Noncatalytic Biodiesel Synthesis under Supercritical Conditions." Processes 9, no. 1 (January 12, 2021): 138. http://dx.doi.org/10.3390/pr9010138.

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The constant increase in greenhouse gases in the environment is forcing people to look for different ways to reduce such pollution. One of these ways is the use of biodiesel for road transport. Conventional biodiesel production involves the catalytic triglyceride transesterification process. When using homogeneous two-stage catalysis, it is difficult to purify the resulting product from the by-products formed, and the catalysts cannot be reused. In the case of heterogeneous catalysis, the process costs are increased due to separation and regeneration of the catalysts. To solve these problems of catalytic synthesis, a noncatalytic process has been recently studied that which takes place under supercritical conditions for an alcohol or other acyl receptor. In such biodiesel production, fatty feedstocks and alcohols are used as raw materials, with the synthesis taking place at supercritical conditions for alcohol, i.e., high temperature and pressure, thus making the process quite simple. This paper reviews the results obtained from biodiesel synthesis using a noncatalytic supercritical process for transesterification using both alcohols and carboxylate esters of low molecular weight, evaluating the optimal conditions for these processes and biofuel stability at high temperatures.

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16

Lee, Eun, Insung Choi, and Sue Yeon Song. "Tertiary alcohol synthesis from secondary alcohols via C–H insertion." J. Chem. Soc., Chem. Commun., no. 3 (1995): 321–22. http://dx.doi.org/10.1039/c39950000321.

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17

Seidl, Frederick J., and Noah Z. Burns. "Selective bromochlorination of a homoallylic alcohol for the total synthesis of (−)-anverene." Beilstein Journal of Organic Chemistry 12 (July 1, 2016): 1361–65. http://dx.doi.org/10.3762/bjoc.12.129.

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The scope of a recently reported method for the catalytic enantioselective bromochlorination of allylic alcohols is expanded to include a specific homoallylic alcohol. Critical factors for optimization of this reaction are highlighted. The utility of the product bromochloride is demonstrated by the first total synthesis of an antibacterial polyhalogenated monoterpene, (−)-anverene.

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18

da Silva, M. J., D. M. Carari, and Adalberto Manoel da Silva. "Fe(iii)-catalyzed α-terpinyl derivatives synthesis from β-pinene via reactions with hydrogen peroxide in alcoholic solutions." RSC Advances 5, no. 14 (2015): 10529–36. http://dx.doi.org/10.1039/c4ra13112f.

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In this study, a novel and environmentally benign Fe(iii)-catalyzed terpinyl derivatives synthesis using hydrogen peroxide in alcohol solutions (i.e. methyl, ethyl, propyl, isopropyl and butyl alcohols) was investigated.

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19

Houwman, Joseline A., Tanja Knaus, Magda Costa, and Francesco G. Mutti. "Efficient synthesis of enantiopure amines from alcohols using restingE. colicells and ammonia." Green Chemistry 21, no. 14 (2019): 3846–57. http://dx.doi.org/10.1039/c9gc01059a.

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20

Isaacs, André, Aaron Bosse, Gregory Tsougranis, Christopher DeTroia, and Francisco Tejidor. "Cu(I)-Catalyzed Synthesis of β,γ-Unsaturated Amides." Synlett 29, no. 04 (November 22, 2017): 463–66. http://dx.doi.org/10.1055/s-0036-1589135.

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Readily available propargyl alcohols were found to be useful substrates for the copper(I)-catalyzed synthesis of β,γ-unsaturated amides. Nucleophilic attack by the alcohol on the in situ generated ketenimine followed by base-catalyzed elimination and subsequent ring opening yields the desired products under mild conditions.

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21

Completo, Gladys C., Reymart V. Sangalang, Beatrice M. I. Pique, and Ruel C. Nacario. "Simple and Efficient Method for the Synthesis of Galactofuranosides." KIMIKA 27, no. 2 (February 2, 2017): 38–49. http://dx.doi.org/10.26534/kimika.v27i2.38-49.

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An efficient and improved one-pot method for the synthesis of galactofuranosides via iodine-promoted cyclization of galactose diethyl dithioacetal in the presence of alcohol, acting both as solvent and nucleophile, is described. The reaction is carried out at room temperature. Alcohols, such as methanol, cyclohexanol and tert-butanol, were used as nucleophiles for the reaction using 2%, 3% and 5% iodine promoter, respectively. A key finding in this study was that the iodine-promoted cyclization of galactose diethyl dithioacetal with alcohol led to selective formation of β-galactofuranoside allowing the efficient preparation of derivatives of this monosaccharide.

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22

ELLIOTT, D. "Higher alcohol synthesis over CuO/ZnO catalysts: Relationship between methanol and higher alcohol syntheses." Journal of Catalysis 111, no. 2 (June 1988): 445–49. http://dx.doi.org/10.1016/0021-9517(88)90107-8.

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23

Ricigliano, J. W., and T. M. Penning. "Synthesis and evaluation of non-steroidal mechanism-based inactivators of 3α-hydroxysteroid dehydrogenase." Biochemical Journal 262, no. 1 (August 15, 1989): 139–49. http://dx.doi.org/10.1042/bj2620139.

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Two non-steroidal mechanism-based inactivators for 3 alpha-hydroxysteroid dehydrogenase (3 alpha-HSD) of rat liver have been synthesized: 1-(4′-nitrophenyl)-2-propen-1-ol (I), and 1-(4′-nitrophenyl)-2-propyn-1-ol (II). Both of these compounds inactivate homogeneous 3 alpha-HSD in a time- and concentration-dependent manner only in the presence of NAD+. Analysis of the pseudo-first-order inactivation data gave a Kd of 1.2 mM for the allylic alcohol and a t1/2 (time required to promote a 50% loss of enzyme activity) for the enzyme of less than 10 s at saturation. Similar inactivation studies with the acetylenic alcohol gave a Kd of 1.5 mM and a t1/2 for the enzyme of 9.9 min at saturation. The allylic alcohol and acetylenic alcohol are oxidized stereoselectively by the enzyme, yielding a Km of 2.0 mM and a Vmax. of 0.58 mumol/min per mg for the allylic alcohol and a Km of 0.75 mM and a Vmax. of 0.29 mumol/min per mg for the acetylenic alcohol. Effective partition ratios (kcat./kinact.) are low for both alcohols: for the allylic alcohol, 5.3; and for the acetylenic alcohol, 141. H.p.l.c. indicates that the Michael acceptors 1-(4′-nitrophenyl)-2-propen-1-one (III) and 1-(4′-nitrophenyl-2-propyn-1-one (IV) are the products of the enzymic oxidation of the corresponding alcohols. The latter compound (IV) was trapped as its monothioether adducts before h.p.l.c. analysis. The Michael acceptors III and IV inactivate the 3 alpha-HSD in the absence of NAD+ at a rate too high to accurately measure and titrate the enzyme in a stoichiometric manner. Enzyme inactivated by I and NAD+, II and NAD+, III or IV is not re-activated by gel filtration or dialysis, implying a stable covalent bond has been formed between the enzyme and the inactivators. A screen of five other HSDs, and two aliphatic alcohol dehydrogenases, indicates that alcohol I is a selective inactivator of rat liver 3 alpha-HSD. It is concluded that 3 alpha-HSD generates non-steroidal alkylating agents (III and IV) that potently inactivate the enzyme with low effective partition coefficients. This report of non-steroidal mechanism-based inactivators of 3 alpha-HSD may provide a precedent for the development of related compounds to act as suicide substrates of other HSDs.

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24

Kimball, Scot R., and Charles H. Lang. "Mechanisms Underlying Muscle Protein Imbalance Induced by Alcohol." Annual Review of Nutrition 38, no. 1 (August 21, 2018): 197–217. http://dx.doi.org/10.1146/annurev-nutr-071816-064642.

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Both acute intoxication and longer-term cumulative ingestion of alcohol negatively impact the metabolic phenotype of both skeletal and cardiac muscle, independent of overt protein calorie malnutrition, resulting in loss of skeletal muscle strength and cardiac contractility. In large part, these alcohol-induced changes are mediated by a decrease in protein synthesis that in turn is governed by impaired activity of a protein kinase, the mechanistic target of rapamycin (mTOR). Herein, we summarize recent advances in understanding mTOR signal transduction, similarities and differences between the effects of alcohol on this central metabolic controller in skeletal muscle and in the heart, and the effects of acute versus chronic alcohol intake. While alcohol-induced alterations in global proteolysis via activation of the ubiquitin-proteasome pathway are equivocal, emerging data suggest alcohol increases autophagy in muscle. Further studies are necessary to define the relative contributions of these bidirectional changes in protein synthesis and autophagy in the etiology of alcoholic myopathy in skeletal muscle and the heart.

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25

Wee, Andrew GH, and Fuxing Tang. "Highly diastereoselective synthesis of 1,2-amino alcohols via nucleophilic addition of organocerium reagents to 4- and 5-oxazolidinonecarbaldehydes." Canadian Journal of Chemistry 76, no. 7 (July 1, 1998): 1070–81. http://dx.doi.org/10.1139/v98-112.

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The reaction of chiral, non-racemic 4- and 5-oxazolidinonecarbaldehydes, 6 and 13, with organocerium reagents proceeds efficiently with good to excellent diastereoselectivity to give syn and anti alcohols, respectively. A model to explain the observed diastereoselectivity of the reaction of 6 and 13 is provided. The utility of this method for the synthesis of amino alcohols is exemplified by the synthesis of C-18-D-ribo-phytosphingosine from the anti alcohol 14f.Key words: oxazolidinonecarbaldehydes, organocerium, diastereoselective, amino alcohols, C-18-ribo-phytospingosine.

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26

Jeon, Sookyoung, and Rotonya Carr. "Alcohol effects on hepatic lipid metabolism." Journal of Lipid Research 61, no. 4 (February 6, 2020): 470–79. http://dx.doi.org/10.1194/jlr.r119000547.

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Alcoholic liver disease (ALD) is the most prevalent type of chronic liver disease with significant morbidity and mortality worldwide. ALD begins with simple hepatic steatosis and progresses to alcoholic steatohepatitis, fibrosis, and cirrhosis. The severity of hepatic steatosis is highly associated with the development of later stages of ALD. This review explores the disturbances of alcohol-induced hepatic lipid metabolism through altered hepatic lipid uptake, de novo lipid synthesis, fatty acid oxidation, hepatic lipid export, and lipid droplet formation and catabolism. In addition, we review emerging data on the contributions of genetics and bioactive lipid metabolism in alcohol-induced hepatic lipid accumulation.

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27

Mawson, Simon, M. Shawn McCutchen, Phooi K. Lim, and George W. Roberts. "Thermodynamics of higher alcohol synthesis." Energy & Fuels 7, no. 2 (March 1993): 257–67. http://dx.doi.org/10.1021/ef00038a016.

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28

FORZATTI, P., E. TRONCONI, and I. PASQUON. "ChemInform Abstract: Higher Alcohol Synthesis." ChemInform 22, no. 52 (August 22, 2010): no. http://dx.doi.org/10.1002/chin.199152353.

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29

Nikiforov, Alexej, Leopold Jirovetz, and Gerhard Buchbauer. "Synthesis of Tertiary Alcohol Carbamates." Liebigs Annalen der Chemie 1989, no. 5 (May 19, 1989): 489–91. http://dx.doi.org/10.1002/jlac.198919890186.

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30

Erickson, Thomas J. "Asymmetric synthesis of Darvon alcohol." Journal of Organic Chemistry 51, no. 6 (March 1986): 934–35. http://dx.doi.org/10.1021/jo00356a034.

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31

Kovalchuk, Svitlana, Tetyanа Mudrak, and Alina Nakonechna. "Study of the Alcohol Quality Obtained by Fermentation of Highly Concentrated Grain Wine by Different Races of Yeast." Restaurant and hotel consulting. Innovations 4, no. 1 (June 22, 2021): 158–68. http://dx.doi.org/10.31866/2616-7468.4.1.2021.234836.

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The topicality. Requirements for the quality of ethyl alcohol produced for further use in the production of alcoholic beverages are constantly increasing. This is due to the growing competition of producers of alcoholic beverages (improving the range and quality of products) and the revision of standards for products. New directions in the alcohol technology development require increasing the dry matter concentrations of the wort; fermentation at elevated temperatures and concentrations of alcohol in the brew; ensuring the reduction of the cost of alcohol by saving raw materials and energy resources. In such conditions, highly productive breeds of yeast with increased osmophilicity, thermotolerance and fermentation activity are required. Research related to the search for new strains producers of ethyl alcohol, and the technology development for highly concentrated mash from grain raw materials are relevant issues for the alcohol industry. Purpose and methods. Investigation of the alcoholic yeast races influence on the synthesis of metabolites during fermentation of highly concentrated wort from grain raw materials. For research methods common to the alcohol and alcoholic beverages have been used. Results. The influence of races of alcoholic yeast on the quality indicators of alcohol has been studied. It was found that the selected race of yeast S. cerevisiae DO-16 in the process of life synthesizes significantly fewer side metabolites compared to other studied races DO-11, K-81 and XII. The use of the selected race of S. cerevisiae DO-16 makes it possible to ferment highly concentrated wort from grain raw materials. It has been experimentally proved that at a concentration of DM concentration of the wort 28 %, the selected osmophilic strain of the yeast S. cerevisiae DO-16 provides regulated indicators of the hydrocarbon composition of mature brews and synthesizes up to 14.40 % vol. alcohol, respectively. To improve the qualitative sensory characteristics of ethanol, the possibility of metabolically adjusting the synthesis of volatile alcohol impurities using different races of alcoholic yeast was investigated. Conclusions and discussions. Scientific novelty lies in the selection race for the yeast fermentation of corn mash highly concentrated with reduced alcohol content related impurities. The influence of yeast race on the formation of alcohol metabolites has been studied. The practical significance of the obtained results lies in the industrial implementation of the selected race of alcoholic yeast for fermentation of highly concentrated wort from grain raw materials. Prospects for further research are the possibility of influencing the quality of alcohol as a raw material for high-quality alcoholic beverages. During the fermentation of wort from grain raw materials, the qualitative and quantitative composition of volatile impurities of alcohol largely depends on the race of alcoholic yeast. The results of research on the biosynthesis of volatile impurities of alcohol allow you to adjust the quality of alcohol for the production of high quality alcoholic beverages.

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32

Gunawan, Erin Ryantin, Mahiran Basri, and Dedy Suhendra. "Enzyme–Catalysed Synthesis of Palm-Based Wax Esters-A Kinetic Study." Jurnal Natur Indonesia 14, no. 1 (November 21, 2012): 37. http://dx.doi.org/10.31258/jnat.14.1.37-41.

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Wax esters are long chain esters that are derived from fatty acids and alcohols with chain lengths of 12 carbons or more. Wax esters havea wide range of application in industrial especially in cosmetics. The present work focuses on the synthesis of wax esters by alcoholysisreaction from palm oil and oleyl alcohol in hexane by lipase from Rhizomucor meihei (Lipozyme IM). Effect of various concentrations ofpalm oil and oleyl alcohol were studied to deduce the kinetics and mechanism of the reaction. The alcoholysis reaction followed Michaelis-Menten kinetics. The reaction follows a Ping-pong Bi-Bi mechanism. The maximum rate was estimated to be 6 x 10 -3 mmol/h. mg catalystand the Michaelis-Menten constant for palm oil and oleyl alcohol were 4.145 M and 6.120 M, respectively.

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33

Stypuła, B., M. Starowicz, M. Hajos, and E. Olejnik. "Electrochemical Synthesis of ZnO Nanoparticles During Anodic Dissolution of Zinc in Alcohols Solvents." Archives of Metallurgy and Materials 56, no. 2 (June 1, 2011): 286–92. http://dx.doi.org/10.2478/v10172-011-0032-x.

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Electrochemical Synthesis of ZnO Nanoparticles During Anodic Dissolution of Zinc in Alcohols SolventsStudies of the effect of the kind of alcohol, electrolyte concentration and water on the anodic dissolution of zinc and the nature of dissolution products were performed. The dissolution products were analyzed by spectroscopic methods (SEM/EDS, XPS and UV-vis) and X-ray diffraction. These studies have shown that the process of anodic dissolution of zinc in alcohol electrolytes (methanol and ethanol) in the presence of water (1-5% vol.), is a simple way to obtain ZnO nanoparticles.

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34

Wang, Jingjing, Samuel Z. Y. Ting, and Joanne E. Harvey. "Preparation of conjugated dienoates with Bestmann ylide: Towards the synthesis of zampanolide and dactylolide using a facile linchpin approach." Beilstein Journal of Organic Chemistry 11 (October 5, 2015): 1815–22. http://dx.doi.org/10.3762/bjoc.11.197.

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Bestmann ylide [(triphenylphosphoranylidene)ketene] acts as a chemical linchpin that links nucleophilic entities, such as alcohols or amines, with carbonyl moieties to produce unsaturated esters and amides, respectively. In this work, the formation of α,β,γ,δ-unsaturated esters (dienoates) is achieved through the coupling of Bestmann ylide, an alcohol and an α,β-unsaturated aldehyde. Primary and secondary alcohols, including allylic alcohols, are suitable substrates; the newly formed alkene has an E-geometry. Strategically, this represents a highly efficient route to unsaturated polyketide derivatives. A linchpin approach to the synthesis of a major fragment of the natural products zampanolide and dactylolide is investigated using Bestmann ylide to link the C16–C20 alcohol with the C3–C8 aldehyde fragment.

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Du, Li-Hua, Miao Xue, Meng-Jie Yang, Yue Pan, Ling-Yan Zheng, Zhi-Min Ou, and Xi-Ping Luo. "Ring-Opening of Epoxides with Amines for Synthesis of β-Amino Alcohols in a Continuous-Flow Biocatalysis System." Catalysts 10, no. 12 (December 4, 2020): 1419. http://dx.doi.org/10.3390/catal10121419.

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An efficient method for the preparation of β-amino alcohols catalyzed by lipase TL IM from Thermomyces lanuginosus in a continuous-flow reactor was developed. The eco-friendly biocatalyst combined with continuous-flow reaction technology displayed high efficiency in the synthesis of β-amino alcohols. The benign reaction conditions (35 °C) and short residence time (20 min), together with the use of low cost and readily available starting materials, make this synthetic approach a promising alternative to current β-amino alcohol synthesis.

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Guimarães, José Renato, Letícia Passos Miranda, Roberto Fernandez-Lafuente, and Paulo Waldir Tardioli. "Immobilization of Eversa® Transform via CLEA Technology Converts It in a Suitable Biocatalyst for Biolubricant Production Using Waste Cooking Oil." Molecules 26, no. 1 (January 2, 2021): 193. http://dx.doi.org/10.3390/molecules26010193.

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The performance of the previously optimized magnetic cross-linked enzyme aggregate of Eversa (Eversa-mCLEA) in the enzymatic synthesis of biolubricants by transesterification of waste cooking oil (WCO) with different alcohols has been evaluated. Eversa-mCLEA showed good activities using these alcohols, reaching a transesterification activity with isoamyl alcohol around 10-fold higher than with methanol. Yields of isoamyl fatty acid ester synthesis were similar using WCO or refined oil, confirming that this biocatalyst could be utilized to transform this residue into a valuable product. The effects of WCO/isoamyl alcohol molar ratio and enzyme load on the synthesis of biolubricant were also investigated. A maximum yield of around 90 wt.% was reached after 72 h of reaction using an enzyme load of 12 esterification units/g oil and a WCO/alcohol molar ratio of 1:6 in a solvent-free system. At the same conditions, the liquid Eversa yielded a maximum ester yield of only 34%. This study demonstrated the great changes in the enzyme properties that can be derived from a proper immobilization system. Moreover, it also shows the potential of WCO as a feedstock for the production of isoamyl fatty acid esters, which are potential candidates as biolubricants.

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37

Salim, Musdalilah Ahmad, H. Misran, S. Z. Othman, Nurfatihah Mahadi, Nur Irfah Mohd Pauzi, and Abreeza Manap. "Synthesis and Characterizations of SiO₂-Ag Core-Shell Nanostructure Using Fatty Alcohols as Surface Modifiers." Applied Mechanics and Materials 773-774 (July 2015): 199–203. http://dx.doi.org/10.4028/www.scientific.net/amm.773-774.199.

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SiO2-Ag core-shell nanostructure with silica core (SiO2) and silver shell (Ag) nanoparticles with spherical morphology were successfully synthesized using a modified self-assembly sol-gel method. Ag nanoparticles at ca.10-50 nm were successfully attached on monodispersed silica spheres (SiO2) with diameter of ca. 450 nm. Renewable resources of palm oil, derived fatty alcohols (octyl-alcohol (C8), decyl-alcohol (C10) and dodecyl-alcohol (C12)) were employed as nonsurfactant surface modifiers prior to coating with Ag nanoparticles. X-ray diffraction (XRD) patterns of calcined SiO2-Ag core-shell nanostructure prepared with surface modifiers exhibited amorphous structure of SiO2 (core) and face-centered cubic (FCC) structure of metallic Ag nanoparticles (shell). The results obtained in the present work demonstrated the feasibility of employing fatty alcohols as potential nonsurfactant surface modifiers in synthesizing SiO2-Ag core-shell.

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38

Lagace, Thomas A., and Neale D. Ridgway. "Induction of apoptosis by lipophilic activators of CTP:phosphocholine cytidylyltransferase α (CCTα)." Biochemical Journal 392, no. 3 (December 6, 2005): 449–56. http://dx.doi.org/10.1042/bj20051021.

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Farnesol (FOH) inhibits the CDP-choline pathway for PtdCho (phosphatidylcholine) synthesis, an activity that is involved in subsequent induction of apoptosis. Interestingly, the rate-limiting enzyme in this pathway, CCTα (CTP:phosphocholine cytidylyltransferase α), is rapidly activated, cleaved by caspases and exported from the nucleus during FOH-induced apoptosis. The purpose of the present study was to determine how CCTα activity and PtdCho synthesis contributed to induction of apoptosis by FOH and oleyl alcohol. Contrary to previous reports, we show that the initial effect of FOH and oleyl alcohol was a rapid (10–30 min) and transient activation of PtdCho synthesis. During this period, the mass of DAG (diacylglycerol) decreased by 40%, indicating that subsequent CDP-choline accumulation and inhibition of PtdCho synthesis could be due to substrate depletion. At later time points (>1 h), FOH and oleyl alcohol promoted caspase cleavage and nuclear export of CCTα, which was prevented by treatment with oleate or DiC8 (dioctanoylglycerol). Protection from FOH-induced apoptosis required CCTα activity and PtdCho synthesis since (i) DiC8 and oleate restored PtdCho synthesis, but not endogenous DAG levels, and (ii) partial resistance was conferred by stable overexpression of CCTα and increased PtdCho synthesis in CCTα-deficient MT58 cells. These results show that DAG depletion by FOH or oleyl alcohol could be involved in inhibition of PtdCho synthesis. However, decreased DAG was not sufficient to induce apoptosis provided nuclear CCTα and PtdCho syntheses were sustained.

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39

Mahadi, Nurfatihah, Halina Misran, and S. Z. Othman. "Synthesis and Characterizations of MOF-199 Using PODFA as Porogen for CO₂ Adsorption Applications." Key Engineering Materials 694 (May 2016): 44–49. http://dx.doi.org/10.4028/www.scientific.net/kem.694.44.

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Copper-based metal-organic framework (MOF-199, also known as Cu-BTC and HKUST-1) materials were successfully synthesized by hydrothermal method using renewable straight-chain fatty alcohol with eight carbon chain length (i.e. octyl alcohol). The addition of palm oil derived fatty alcohol (PODFA) was suggested to act as porogen (structure directing agent) that aided the particle formation and flexible porous structure. This synthesis approach was environmental-friendly and sustainable by utilizing the fatty alcohols originated from biomass such as palm oil. The resulting MOF-199 materials exhibited single crystalline octahedral morphology structure by X-ray diffraction analyses and SEM images. The optimum ratio of octyl alcohol exhibited well-defined single octahedral particles at size range of ca. 10-50 µm and reduced by-product formation of cuprous oxide at high temperature synthesis. The nature of MOF-199 having apparently high surface area, high pore volume and low density provided the possibility in carbon capture storage. The CO2 adsorption capacity of MOF-199 investigated using high pressure volumetric analyser (HPVA-II) at ambient temperature (i.e. 25 °C) was found to be at maximum working capacity.

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40

Dmitriev, Iliya A., Alexey V. Glazunov, Alexandr S. Semeikin, Oleg A. Golubchikov, and Gennagiy A. Prigorelov. "SYNTHESES OF ω -Н-PERFLUORINE CARBOXYLIC ACIDS BY OXIDATION OF ALCOHOL-TELOMERS H(CF2CF2)nCH2OH." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 59, no. 7 (July 17, 2018): 51. http://dx.doi.org/10.6060/tcct.20165907.5346.

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Methods of synthesis of ω-Н-perfluorine carboxylic acids by oxidation of alcohol-telomers of H(CF2CF2)nCH2OH (n = 1 – 4) composition were developed. Physical-chemical properties of poly fluorinated alcohols and carboxylic acids were determined.

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41

Srivastava, Vishal, Pravin K. Singh, Sudhanshu Kanaujia, and Praveen P. Singh. "Photoredox catalysed synthesis of amino alcohol." New Journal of Chemistry 42, no. 1 (2018): 688–91. http://dx.doi.org/10.1039/c7nj03068a.

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42

Leemans, Laura, Marc D. Walter, Frank Hollmann, Anett Schallmey, and Luuk M. van Langen. "Multi-Catalytic Route for the Synthesis of (S)-Tembamide." Catalysts 9, no. 10 (September 29, 2019): 822. http://dx.doi.org/10.3390/catal9100822.

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Enantiopure β-amino alcohols constitute one of the most significant building blocks for the synthesis of active pharmaceutical ingredients. Despite the availability of a range of chiral β-amino alcohols from a chiral pool, there is a growing demand for new enantioselective synthetic routes to vicinal amino alcohols and their derivatives. In the present study, an asymmetric 2-step catalytic route that converts 4-anisaldehyde into a β-amino alcohol derivative, (S)-tembamide, with excellent enantiopurity (98% enantiomeric excess) has been developed. The recently published initial step consists in a concurrent biocatalytic cascade for the synthesis of (S)-4-methoxymandelonitrile benzoate. The O-benzoyl cyanohydrin is then converted to (S)-tembamide in a hydrogenation reaction catalyzed by Raney Ni. To achieve hydrogenation of the nitrile moiety with highest chemoselectivity and enantioretention, various parameters such as nature of the catalyst, reaction temperature and hydrogen pressure were studied. The reported strategy might be transferrable to the synthesis of other N-acyl-β-amino alcohols.

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43

Budimarwanti, C., and Karim Theresih. "SYNTHESIS OF AMYL VANILLIL ETHER AS WARMING AGENT FROM VANILLIN." Jurnal Sains Dasar 4, no. 2 (May 20, 2016): 100. http://dx.doi.org/10.21831/jsd.v4i2.9084.

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Synthesis of amyl vanillyl ether from vanillin was carried out by two different methods, two-steps reaction method and one-step reaction method. In two-steps reaction method beginning with the first stage reduction of vanillin with NaBH4 to obtain vanillyl alcohol. Then, dehydration vanillyl alcohol and amyl alcohol with concentrated sulfuric acid. Synthesized compound were identification by TLC, IR spectroscopy and GCMS. In one step reaction method the vanillyl alcohol as a result of reduction of vanillin with NaBH4 are not isolated in advance, immediately reacted with amyl alcohol to form amyl vanillyl ether compound with concentrated HCl dehydrator. The results of two-steps reaction method showed that the reduction reaction of vanillin with NaBH4 produced vanillyl alcohol. Vanillyl alcohol compound that produced is white powder and yield 41.28%. Vanillyl amyl ether compound could not synthesis by dehydration from vanillyll alcohol from reduction of vanillin and amyl alcohol. Ether compound from dehydration of vanillyl alcohol from reduction of vanillin and amyl alcohol is diamyl ethers. Method one reaction step successfully synthesized amyl vanilil ether compound. Amyl vanilil ether compound that produced is liquid, colorless and yield 86.42%. Keywords: amyl vanillil ether, vanillin, vanillil alcohol, amyl alcohol

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44

Pereira, F. S., L. J. Pereira, D. F. A. Crédito, L. H. V. Girão, A. H. S. Idehara, and E. R. P. González. "Cycling of waste fusel alcohols from sugar cane industries using supercritical carbon dioxide." RSC Advances 5, no. 99 (2015): 81515–22. http://dx.doi.org/10.1039/c5ra16346c.

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The present work describes the clean synthesis of non-phosgene organic carbonates (NPOCs) with two important by-products from sugar and alcohol industries, namely, fusel alcohols and carbon dioxide, in the presence of DBU, DBN or TBD and an alkylating agent.

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45

Razak, N. A. A., N. N. H. Shah, Halina Misran, Abreeza Manap, and Boon Kar Yap. "Gel Combustion Synthesis and Characterizations of Nanocrystalline ZnO in Various Dispersants and Mol Ratio." Applied Mechanics and Materials 465-466 (December 2013): 1282–86. http://dx.doi.org/10.4028/www.scientific.net/amm.465-466.1282.

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Zinc oxide nanoparticles were successfully synthesized using modified gel combustion synthesis route. Zinc nitrate was used as oxidant while fatty alcohol (8 carbon chains octyl alcohol) and fatty ester (12 carbon chains lauric acid) derived from palm oil as well as glycerol played the role of organic dispersants/fuel. X-ray diffraction (XRD) patterns of the calcined samples exhibited three prominent peaks at ca. 2θ = 31.9°, 34.6° and 36.4° corresponding to (100), (002) and (101) reflection planes which were well indexed to zinc oxide hexagonal phase with wurtzite structure. Additional peaks were not observed in XRD patterns suggesting that no other phases were formed during the combustion synthesis. The morphology of calcined samples produced using glycerol as fuel exhibited elongated spindle-like shapes at ca. 1 μm consisted of nanoparticles. Samples prepared using fatty alcohol as fuel exhibited hexagonal morphology with crystallites sizes of ca. 30 to 40 nm. These results suggested that palm oil derived fatty alcohols and fatty esters are alternative materials as organic dispersants in the production of metal nanoparticles using gel combustion synthesis. The resulting optical properties of ZnO nanocrystallites prepared in this study were similar to those obtain from bulk materials with energy band gap value at ca. 3.28 eV compared to 3.37 eV for the latter.

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46

Aldrich, Leslie, Qiwen Gao, Lianyan Xu, Vincent Parise, and Yash Mehta. "Enantioselective Synthesis of 4-Amino-3-hydroxybenzopyran Flavanol Derivatives from Chalcones." Synthesis 50, no. 24 (November 21, 2018): 4796–808. http://dx.doi.org/10.1055/s-0037-161114.

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A concise method that is easily amenable for analogue synthesis has been developed to enantioselectively access 4-amino-3-hydroxybenzopyrans from chalcones. Epoxy alcohols were formed from chalcones through a Corey–Bakshi–Shibata reduction of the enone and subsequent Sharpless asymmetric epoxidation of the allylic alcohol. The epoxy alcohols were protected, regioselectively opened with various amines using catalytic europium(III) triflate, and the resulting free alcohols were orthogonally protected. Concomitant deprotection and intramolecular nucleophilic aromatic substitution provided the benzopyran core, which is poised to undergo additional reactions to provide a diverse chemical library with ideal properties for biological evaluation.

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47

Floreancig, Paul E. "Perrhenate Esters as Intermediates in Molecular Complexity-Increasing Reactions." Synlett 32, no. 14 (January 28, 2021): 1406–18. http://dx.doi.org/10.1055/a-1377-0346.

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AbstractAllylic alcohols form perrhenate esters upon reaction with Re2O7 or HOReO3. These species undergo nonstereospecific and nonregiospecific alcohol-transposition reactions through cationic intermediates. Sequencing these nonselective processes with reversible trapping by electrophiles results in cyclization reactions where regio- and stereocontrol are dictated by thermodynamics. The cationic intermediates can also be utilized as electrophiles in intra- or intermolecular dehydrative reactions with nucleophiles. These processes serve as the basis for applications in catalytic syntheses of a wide range of heterocyclic and carbocyclic structures that often show considerable increases in molecular complexity. This Account describes a sequence of events that started from a need to solve a problem for the completion of a natural product synthesis and evolved into a central element in the design of numerous new transformations that proceed under mild conditions from readily accessible substrates.1 Introduction2 Exploratory Studies3 Application to Spiroketal Synthesis4 Reactions with Epoxides as Trapping Agents5 Development of Dehydrative Cyclizations6 Bimolecular Reactions7 Spirocyclic Ether Formation8 Conclusions

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Ikegami, Satoru, Tsutomu Katsuki, and Masaru Yamaguchi. "Stereoselective synthesis of the (±)-Ireland alcohol." Tetrahedron Letters 29, no. 41 (January 1988): 5285–86. http://dx.doi.org/10.1016/s0040-4039(00)80738-8.

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49

Kim, Jaehoon, Daewoo Kim, Bambang Veriansyah, Jeong Won Kang, and Jae-Duck Kim. "Metal nanoparticle synthesis using supercritical alcohol." Materials Letters 63, no. 21 (August 2009): 1880–82. http://dx.doi.org/10.1016/j.matlet.2009.05.066.

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Geoghegan, Kimberly, and Paul Evans. "Synthesis of (+)-perillyl alcohol from (+)-limonene." Tetrahedron Letters 55, no. 8 (February 2014): 1431–33. http://dx.doi.org/10.1016/j.tetlet.2014.01.039.

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