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Journal articles on the topic 'Ethyl Acetate synthesis'

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Published: 4 June 2021
Last updated: 10 February 2022

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1

Tang, Bao Hua. "Synthesis of Ethyl Acetate Catalyzed by Inorganic Salt." Advanced Materials Research 455-456 (January 2012): 1060–63. http://dx.doi.org/10.4028/www.scientific.net/amr.455-456.1060.

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Ethyl acetate was synthesized using inorganic salt as catalyst. The catalytic syntheses of Ethyl Acetate using NaHS04, Sncl2 and Fecl3 as catalysts were introduced. It showed that Sncl2 was excellent catalysts for synthesis Ethyl Acetate with higher yields and the catalyst can be reused, and the reaction does not cause pollution.
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2

Vergaelen, Maarten, Bart Verbraeken, Joachim F. R. Van Guyse, Annelore Podevyn, Ali Tigrine, Victor R. de la Rosa, Bryn D. Monnery, and Richard Hoogenboom. "Ethyl acetate as solvent for the synthesis of poly(2-ethyl-2-oxazoline)." Green Chemistry 22, no. 5 (2020): 1747–53. http://dx.doi.org/10.1039/c9gc03872h.

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Addressing the polymerization of 2-ethyl-2-oxazoline (EtOx) in ethyl acetate to replace the current state-of-the-art solvents. The switch to ethyl acetate is important towards pharmaceutical compliance/compatibility of PEtOx, besides low environmental burden.
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3

Kallel-Mhiri, Héla, and André Miclo. "Mechanism of ethyl acetate synthesis byKluyveromyces fragilis." FEMS Microbiology Letters 111, no. 2-3 (August 1993): 207–12. http://dx.doi.org/10.1111/j.1574-6968.1993.tb06387.x.

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4

Seo, Seung-Yong, Wei Sun, Yue Yuan, Bit Lee, Hee-Sook Jun, and Dongyun Shin. "Short Synthesis of the Antidiabetic Octaketide Ethyl 2-(2,3,4-Trimethoxy-6-octanoylphenyl)acetate." Synlett 29, no. 03 (November 28, 2017): 326–29. http://dx.doi.org/10.1055/s-0036-1592062.

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A facile and practical approach for the synthesis of ethyl 2-(2,3,4-trimethoxy-6-octanoylphenyl)acetate, an antidiabetic octaketide analogue of cytosporone B, is described. Unlike known approaches for the synthesis of cytosporones and their analogues, the key step of the developed route is a Friedel–Crafts alkylation of 1-(3,4,5-trimethoxyphenyl)octan-1-one with ethyl chloro(methylthio)acetate, followed by desulfurization.
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5

Shen, De Li, Xin He, Wei Guan, Yu Ping Liu, and Bao Guo Sun. "Synthesis of Fragrance 1-(3,3-dimethylcyclohexyl)Ethyl Acetate." Advanced Materials Research 781-784 (September 2013): 983–87. http://dx.doi.org/10.4028/www.scientific.net/amr.781-784.983.

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1-(3,3-dimethylcyclohexyl) ethyl acetate was synthesized by the reaction of dihydromycene with acetic acid in the presence of sulfuric acid. The effecting factors including the amount of catalyst, the reaction temperature, the molar ratio of raw materials and the reaction time were investigated. The experimental results showed that the molar raio of the dihydromyrcene to acetic acid to sulfuric acid was 1:3:0.2, the reaction temperature is 60 °C and the reaction time was 6.5 h. The yield reached 45.3%. The structure of product was characterized by gas chromatography, mass spectrometry, infrared spectroscopy and nuclear magnetic resonance. The odor evaluation result indicated that the product had a sweet, woody, floral odor.
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6

Tang, Bao Hua. "Synthesis of Ethyl Acetate Catalyzed by Inorganic Salt." Advanced Materials Research 455-456 (January 2012): 1060–63. http://dx.doi.org/10.4028/scientific5/amr.455-456.1060.

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7

Zheng, Hui-dong, Hui Tian, Wen-hu Zou, Zhi-xian Huang, Xiao-da Wang, Ting Qiu, Su-ying Zhao, and Yan-xiang Wu. "Residue curve maps of ethyl acetate synthesis reaction." Journal of Central South University 20, no. 1 (January 2013): 50–55. http://dx.doi.org/10.1007/s11771-013-1458-2.

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8

Stojkovic, Danijela, Alessia Bacchi, Davide Capucci, Milica Milenkovic, Bozidar Cobeljic, Srecko Trifunovic, Katarina Andjelkovic, et al. "Synthesis and characterization of palladium(II) complexes with glycine coumarin derivatives." Journal of the Serbian Chemical Society 81, no. 12 (2016): 1383–92. http://dx.doi.org/10.2298/jsc160915087s.

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A Pd(II) complex with methyl 2-((1-(2,4-dioxochroman-3-ylidene)ethyl)amino)acetate was synthesized. The structures of both the ligand and Pd(II) complex were determined by elemental analysis, IR and NMR spectroscopy. Recrystallization of Pd(II) complex from DMF/water solution resulted in its hydrolysis and formation of dimethylamine-(2-((1-(2,4-dioxochroman-3-ylidene)ethyl)amino)acetato)palladium(II) complex, the structure of which was determined by elemental analysis, IR, 1H and 13C NMR spectroscopy, as well as X-ray analysis.
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9

Hishmat, O. H., Kh M. A. Khalil, Sh I. El-Naem, and A. H. Abd el-Rahman. "Synthesis of Pyranobenzopyranopyridines and Benzodipyran Derivatives." Zeitschrift für Naturforschung B 41, no. 2 (February 1, 1986): 252–58. http://dx.doi.org/10.1515/znb-1986-0217.

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6-Formyl-7-hydroxy-5-methoxy-2-methylchromone on bromination yields the 8-bromo derivative or the 8-bromo-6-formyl-5,7-dihydroxy derivative depending on the reaction condition. Cyclization of both leads to the corresponding 3-acetyl-, 3-benzoyl-, 3-carboxamido-, 3-carbethoxybenzodipyran derivatives.The 3-acetylbenzodipyran derivative when treated with ethyl acetoacetate or ethyl cyanoacetate in the presence of ammonium acetate yields the corresponding dihydropyranobenzopyranopyridine dione or the dihydropyranobenzopyranopyridine trione.The reaction of the 3-acetyl derivative with cyanoacetamide in the presence of ammonium acetate affords the substituted pyranobenzopyranopyridine dione.The 3-acetyl derivative undergoes self condensation to form the substituted benzopyranobenzopyran derivative.
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10

Sekar, M., and K. J. Rajendra Prasad. "A Facile Synthesis of Naphthyl-Quinolyl Ethanes and Chromenyl-Quinolyl Ethanes." Zeitschrift für Naturforschung B 54, no. 6 (June 1, 1999): 811–14. http://dx.doi.org/10.1515/znb-1999-0617.

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The reaction of alkaline 2,4-dihydroxyquinoline 1 and 1-tetralone 2 in 2% sodium hydroxide solution with vinyl acetate afforded a brown solid 3, which on treatment with phosphorous oxychloride yielded 2,4-dichloro-3-[l’-(l-chloro-naphth-2-yl)ethyl]quinoline (4). The same reaction of 1 and chromanone 7 with vinyl acetate afforded 2,4-dichloro-3-[l’-(4-chloro- 2-methyl-chromen-3-yl)ethyl]quinoline (9)
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11

Antunes, Bruno M., Simão P. Cardoso, Carlos M. Silva, and Inês Portugal. "Kinetics of Ethyl Acetate Synthesis Catalyzed by Acidic Resins." Journal of Chemical Education 88, no. 8 (August 2011): 1178–81. http://dx.doi.org/10.1021/ed100471j.

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12

Gaspar, A. B., A. M. L. Esteves, F. M. T. Mendes, F. G. Barbosa, and L. G. Appel. "Chemicals from ethanol—The ethyl acetate one-pot synthesis." Applied Catalysis A: General 363, no. 1-2 (July 2009): 109–14. http://dx.doi.org/10.1016/j.apcata.2009.05.001.

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13

Sadeek, Ghufran T., Mohammad S.Al-jely, and Neim H. Saleem. "NEW APPROACH FOR THE SYNTHESIS OF ARYLOXY 1,3-OXAZINES." International Journal of Research -GRANTHAALAYAH 8, no. 11 (December 3, 2020): 137–44. http://dx.doi.org/10.29121/granthaalayah.v8.i11.2020.2364.

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Oxazine compounds have drew the attention of many researchers to find different approaches to the synthesis of this type of compounds according to the success of their use in a wide range of pharmaceutical application during the last decades .It is also for the difference reactivity of these analogues is exhaustively depicted and illustrates the rich versatility of this class of starting material. They proved to have most of actions of a combination of other drugs. We are herein investigate the synthesis of ethyl aryloxy acetate(S1-6) from the reaction of the corresponding ethyl bromo acetate with aryl phenols .These intermediates were cyclized with antharanilic acid affording the titled compounds
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14

Long, Yun Hui, Jun Ming Guo, Du Shu Huang, and Gui Yang Liu. "Catalytic Synthesis of Ethyl Acetate Using Ti2SnC." Advanced Materials Research 634-638 (January 2013): 628–31. http://dx.doi.org/10.4028/www.scientific.net/amr.634-638.628.

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The catalytic synthesis of ethyl acetate from ethanol and acetic acid using Ti2SnC in liquid phase under the atmospheric pressure was studied. The influences of some factors such as catalyst usage, initial reactant molar ratio, reaction temperature and reaction time on acetic acid conversion rate of this reaction system were investigated. The acetic acid conversion rate of 88.12% is achieved while the molar ratio of alcohol and acid is 1:3.6, the amount of catalyst is 0.2000 g, the reaction temperature is 80 °C and the reaction time is 30min. The catalyst Ti2SnC is the ideal catalyst for synthesis of ethyl acetate for good catalytic performance, non-corrosive to equipment, easily separated from product and used repeatedly.
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15

Journal, Baghdad Science. "Synthesis of some Schiff's bases derivatives from aminoazo compounds." Baghdad Science Journal 4, no. 3 (September 2, 2007): 416–19. http://dx.doi.org/10.21123/bsj.4.3.416-419.

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Reaction of,2- [( 4- amio phenyl ) diazenyl] 1,3,4- thiadiazole -5- thiol (S1) with p- chlorobenzeldehyde,3,4 – dimethoxy benzaldehyde and pyrrol-2- carbonxaldehyde gave -5- [{4-(4-chlorobenzylidene amino) phenyl} diezenyl]-1,3,4- thiadiazole-2- thiol (S2),5-[{ 4-[(3,4- dimethoxybenzyldene )amino phenyl ] diazenyl)-1,3,4- thiadiazole-2-thiol,(S3) and -5- [4-(1,H – pyrrol -2- yl- methylene)amino phenyl] diazenyl)-1,3,4- thiadiazole-2- thiol (S4) respectively as schiff's bases compounds. On the same route-2-[(4-amino-1- naphthyl ) diazenyl] -1,3,4- thiadiazole -5- thiol (S5) reacts with –p- chloro benzaldehyde and –m- nitrobenzaldehyde to give the follwing schiff's bases -5-[{ 4-(4- chloro benzylidene ) amino -1- naphthyl} diazenyl] -1,3,4- thiadiazole -2- thiol (S6) and -5- ({ 4- [3- nitrobenzylidene) amino] -1- naphthyl({ diazenyl) -1,3,4 – thiadiazole-2- thiol (S7). Sn2 reaction was carried out by the reaction of compound (S6,S7) with bromo ethyl acetate to get ethyl[5{4-(4- chlorobenzylidene amino)-1- naphthyl} diazenyl] -1- 1,3,4- thiadiazole-2- yl- thio] acetate (S8) and ethyl [5-{4- (2- nitrobenzylidene amino)-1- naphthyl diazenyl] -1,3,4- thiadiazole -2-yl-acetate (S9).(Fig.1).
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16

Journal, Baghdad Science. "Synthesis and Characterization of Some New Morpholine Derivatives." Baghdad Science Journal 13, no. 2 (June 5, 2016): 253–65. http://dx.doi.org/10.21123/bsj.13.2.253-265.

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In this paper a new series of morpholine derivatives was prepared by reacting the morpholine with ethyl chloro acetate in the presence triethylamine as a catalyst in benzene gave morpholin-N-ethyl acetate(1) which reacted with hydrazine hydrate in ethanol, and gave morpholin-N-ethyl acetohydrazide (2) . Morpholin-N-aceto semithiocarbazide (3) were prepared by reacting compound(2) with ammonium thiocyanate , concentrated hydrochloric acid and ethanol as a solvent .Compound (3) reacted with sodium hydroxide and hydrochloric acid to give 5-(morpholin-N-methylene)-1H-1,2,4-triazole-3-thiol (4) .The new series of 1,2,4-triazol derivatives (5-8) was synthesized by reaction of compound(4) with formaldehyde , DMF as a solvent and different secondary amines. Preparation of new 1,2,4-triazoline derivatives (9) by reaction compound (4) with bromo acetic acid . Reaction of compound (9) with different aromatic aldehyde and dimethyl sulfoxide as a solvent obtained compounds (10-13).
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17

Shepel, Felix, Diana Shepel, and Fliur Macaev. "On Some Peculiarities of Ethyl 5-Hydroxy-1,2-Dimethyl-1H-3-Indolecarboxylate Synthesis." Chemistry Journal of Moldova 4, no. 2 (December 2009): 116–17. http://dx.doi.org/10.19261/cjm.2009.04(2).01.

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It has been conducted increase the yield up to 63% of ethyl 5-hydroxy-1,2-dimethyl-1H-3-indolecarboxylate via interaction of p-benzoquinone with N-methyl-b-aminocrotone ether in mixture of glacial acetic acid/ethyl acetate.
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18

Zhu, Ying-Guang, Hong-Zhu Kan, Li-Qin Jiang, and Wen-Hao Hu. "Practical and Scalable Synthesis of Ethyl (R)-Piperidine-3-acetate." Synthetic Communications 42, no. 8 (October 7, 2011): 1137–45. http://dx.doi.org/10.1080/00397911.2010.536293.

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19

Furuta, M., M. C. Kung, and H. H. Kung. "One-step synthesis of ethyl acetate from ethene and oxygen." Applied Catalysis A: General 201, no. 1 (June 2000): L9—L11. http://dx.doi.org/10.1016/s0926-860x(00)00553-6.

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20

Pyne, Stephen G., Karl Schafer, Brian W. Skelton, and Allan H. White. "Asymmetric Synthesis of Protected 2-Substituted Cyclopropane Amino Acids." Australian Journal of Chemistry 51, no. 2 (1998): 127. http://dx.doi.org/10.1071/c97105.

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The cyclopropanation reactions of (1a) with ethyl and t-butyl (dimethylsulfuranylidene)acetate proceeded with good diastereoselectivity and resulted in the formation of three diastereoisomeric products. The major diastereoisomeric product ((2a) and (2b), respectively) could be isolated in pure form by simple recrystallization. The stereochemistry of the major cyclopropane product (2b) has been determined by single-crystal X-ray structural analysis. These cyclopropanation products were susceptible to ring opening of the cyclopropane ring upon reduction with sodium borohydride or acid hydrolysis. The reaction of (1b) with ethyl (dimethylsulfuranylidene)acetate gave a mixture of four diastereoisomeric cyclopropanation products. The reactions of (1a) and (1b) with the sulfur ylide derived from 3-methoxycarbonylallyldimethylsulfonium bromide were less successful in terms of product diastereoselectivities.
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21

Liu, Jiatao, Huisheng Lyu, Yifei Chen, Guiming Li, Haoxi Jiang, and Minhua Zhang. "Insights into the mechanism of ethanol synthesis and ethyl acetate inhibition from acetic acid hydrogenation over Cu2In(100): a DFT study." Phys. Chem. Chem. Phys. 19, no. 41 (2017): 28083–97. http://dx.doi.org/10.1039/c7cp04364c.

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22

Sun, Bin-Bin, Bing-Hua Yao, Yang-Qing He, and Bo Yang. "Preparation and Photochromic Performance of Homogeneous Phase Nitrocellulose Membrane Grafting Spirooxazine Moieties." Coatings 10, no. 6 (June 17, 2020): 569. http://dx.doi.org/10.3390/coatings10060569.

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The synthesis of 1,3,3-trimethyl-9′-acryloxyspiro[indoline-2,3′(3H)naphtho[2,1-b][l,4]-oxazine] (AISO) was carried out by catalytic esterification of 1,3,3-trimethyl-9′-hydroxyspiro-[indoline-2,3′(3H)naphtho[2,1-b][l,4]oxazine] (SO–OH) and acrylic acid in the presence of 1,3-dicyclohexylcarbodiimide (DCC) and N-dimethylaminopyridine (DMAP). Then, the synthesis of the target copolymer (NC-g-AISO) was was carried out by benzoyl peroxide (BPO)-induced graft copolymerization of the AISO monomer onto nitrocellulose (NC) in a homogeneous methyl isobutyl ketone medium. The structure of NC-g-AISO was characterized by Fourier transform infrared (IR) spectroscopy, 13C Nuclear Magnetic Resonance (NMR) spectra and thermogravimetric (TG) analysis. The photochromic properties of NC-g-AISO were investigated by examining UV–Vis spectra in ethyl acetate solution and solid membrane. Compared with the AISO monomer in ethyl acetate solution, the thermal color decay stability of the colored form of NC-g-AISO in ethyl acetate solution and in solid membrane improved significantly. The thermal color decay reaction rate constants in ethyl acetate solution and membrane at 25 °C were 1.77 × 10–2 and 1.36 × 10–3 s–1, respectively, fitted using the first-order reaction equation. After ten photochromic cycles, the relative absorption intensity of the colored form of NC-g-AISO decreased by 0.85%, indicating that the NC-g-AISO membrane has good reversible photochromic behavior.
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23

Sun, Guo Fu, Jing Li Xu, and Hong Yan Si. "Synthesis of Ethyl Acetate Using Packing Solid Super Acid Catalyst of SO42-/Al2O3 by Catalytic Distillation." Advanced Materials Research 550-553 (July 2012): 292–95. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.292.

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Ethyl acetate was synthesized by catalytic distillation using packing solid super acid catalyst of SO42-/Al2O3made by oneself. The effects of process parameters such as the ratio between acetic acid and ethanol, the feed flow rate of ethanol and reflux ratio on catalytic distillation were observed. The best operation parameters were determined. It was beneficial for synthesis of ethyl acetate when n(acetic acid)/n(ethanol) was 1/3, the feed flow rate of ethanol was 3mol/l and reflux ratio was 2.
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24

Hayman, Colin M., David S. Larsen, and Sally Brooker. "A Facile Synthesis of 2,6-Dideoxy 6,6,6-Trifluorinated Carbohydrate Analogues." Australian Journal of Chemistry 51, no. 7 (1998): 545. http://dx.doi.org/10.1071/c97203.

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The syntheses of 2,6-dideoxy-6,6,6-trifluoro-DL-arabino-hexose (4) and the corresponding glycoside, ethyl 2,6-dideoxy-6,6,6-trifluoro-DL-arabino-hexopyranoside (11), are described. The key step in the synthesis of (4) involved the Lewis acid catalysed hetero-Diels–Alder reactions of (E)-4-benzyloxy-1,1,1-trifluorobut-3-en-2-one and benzyl vinyl ether. Hydroboration of the resulting cycloadduct, and hydrogenylitic debenzylation gave (4) in a 59% overall yield. The ethyl glycoside (11) was prepared in a similar manner from ethyl vinyl ether. A single-crystal X-ray diffraction study confirmed the structural assignment of (11). The O-glycosides (17) and (18) were formed from the boron trifluoride etherate promoted reaction of the per-acetate of (4), i.e. (16), and 2-naphthol. However, a similar reaction between 5-hydroxy-1,4-dimethoxynaphthalene and (16) gave the disubstituted C-glycoside (19) in 52% yield.
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25

Fan, Rui, and Jin Shui Yao. "Synthesis and Characterization of Optically Active Poly(N-Acryloyl-L-alanine) in Ionic Lliquids." Advanced Materials Research 1035 (October 2014): 464–68. http://dx.doi.org/10.4028/www.scientific.net/amr.1035.464.

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The chiral monomer,N-acryloyl-L alanine, was synthesized by condensation reaction between acryloyl chloride and L-alanine using ethyl acetate and water as two-phase solvents, tetrabutyl ammonium bromide as phase transfer catalyst and ethyl acetate as the extraction solvent.And then, poly (N-acryloyl-L-alanine) was successfully prepared by free radical polymerization of above synthesized monomer using 2,2'-Azobis (2-methylpropionitrile) AIBN as initiator in ionic liquids. Their structures were characterized by1HNMR and IR. Optically activities were tested with Rotary Spectrometer. Melting point and glass transition temperature were tested with DSC. The molecular weight of the polymer was characterized with GPC.
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26

Saleh, Fatma M., Hamdi M. Hassaneen, Magda F. Mohamed, and Yasmin Sh Mohamed. "Synthesis, Cytotoxicity and Docking Simulation of Novel Annulated Dihydroisoquinoline Heterocycles." Mini-Reviews in Medicinal Chemistry 20, no. 12 (July 23, 2020): 1166–78. http://dx.doi.org/10.2174/1389557520666200130104632.

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Objective: Coupling of ethyl 2-(6,7-dimethoxy-3,4-dihydroisoquinolin-1-yl)acetate 2 with diazotized anilines in ethanol in the presence of sodium acetate yielded 2-(2-arylhydrazono)-2-(6,7- dimethoxy-3,4-dihydroisoquinolin-1-yl)acetate (4a-f). Methods: Treatment of 2 with α-bromoketones 6a-f in dry benzene at reflux gave the corresponding isoquinolinium bromides 7a-f. Refluxing of each of the salts 7a-f in dry benzene and in the presence of triethylamine yielded 2-arylpyrrolo-[2,1-a]isoquinoline structures 8a-f, that converted to ethyl (E)-8,9- dimethoxy-3-(phenyldiazen-yl)-2-(aryl)-5,6-dihydropyrrolo[2,1-a]isoquinoline-1-carboxylate (9a-f) upon treatment with diazotized anilines 3 in ethanol in the presence of sodium acetate. Results and Conclusion: Cytotoxic assay was performed for in vitro antitumor screening against caucasian breast adenocarcinoma (MCF7), hepatocellular carcinoma (HepG2) and colorectal carcinoma (HCT-116) cell lines. The results were compared with the standard anticancer drug (doxorubicin). Molecular docking using MOE 2014.09 software was carried out for the most potent compound 4d, which showed the highest binding affinity towards the four tested proteins and thus initiated apoptosis of cancer cells.
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27

Chen, Ling-Ching, Huey-Min Wang, and Iou-Jiun Kang. "Ytterbium Triflate-catalysed Synthesis of Ethyl 1,2,3,4-Tetrahydroisoquinoline-1-carboxylates Using Ethyl Chloro(phenylselanyl)acetate." HETEROCYCLES 60, no. 8 (2003): 1899. http://dx.doi.org/10.3987/com-03-9799.

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28

Farah Smaysem and Ahmed Salim. "Synthesis and Characterization of Some Heterocyclic Compounds and Evaluation of Antibacterial Activity." International Journal of Research in Pharmaceutical Sciences 11, SPL4 (December 21, 2020): 2068–78. http://dx.doi.org/10.26452/ijrps.v11ispl4.4421.

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In this study, heterocyclic compounds with two nitrogen atoms are prepared by reaction of 2-aminobenzimidazole with formic acid to get amide derivatives (A), reacts with phenylhydrazine to get phenyl hydrazone derivatives (B), reacts with ethyl chloroacetate to obtain ethyl acetate derivatives (C). The derivative (D) obtains on heating in a basic medium. The (B) reacts with 2-chloroacetyl chloride to give derivatives (E). A number of Schiff bases are prepared (F, I) from reacting 2-aminobenzimidazole with benzaldehyde derivatives. The(F) reacts with propargyl bromide to give propargyl bromide derivatives (G). The cyclization with 4-nitrophenyl azide leads to obtain triazole compound (H). The compound (I) reacts with ethyl chloroacetate to give ethyl acetate derivatives (J), reacts with hydrazine to give N-amide hydrazine derivatives (K). The cyclization give rises to 1,3,4-oxadiazole derivatives (L). The compound (I) reacts with sodium azide to obtain tetrazole derivatives (M). Synthesizing of Triazine, Oxadiazole, Triazole, Tetrazole via cyclization of the Schiff base derivatives with ethyl chloroacetate and chloro acetyl chloride, benzoic acid, 4-nitrophenyl azide, sodium azide and phenyl azide are possible respectively. The FT-IR, 13C-NMR and 1H-NMR spectral data give good evidence for the formation of the compounds. Some prepared compounds exhibit antibacterial properties.
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29

Mahadevan, IB, MC Kimber, SF Lincoln, ERT Tiekink, AD Ward, WH Betts, IJ Forbes, and PD Zalewski. "The Synthesis of Zinquin Ester and Zinquin Acid, Zinc(II)-Specific Fluorescing Agents for Use in the Study of Biological Zinc(II)." Australian Journal of Chemistry 49, no. 5 (1996): 561. http://dx.doi.org/10.1071/ch9960561.

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The syntheses of Zinquin ester [ethyl [2-methyl-8-(p- tolylsulfonylamino )-6-quinolyloxy]acetate] and the corresponding acid, both of which are zinc(II)-specific fluorophores , are described. 6-Methoxy-2-methyl-8-(p- tolylsulfonylamino ) quinoline (2) can be demethylated , with boron tribromide, to form either the expected phenol or a mixture of the phenol and the corresponding 5-bromo derivative depending upon the reaction conditions. These compounds react with ethyl bromoacetate to give the corresponding esters, as well as the 5-ethoxycarbonyl derivative formed by electrophilic substitution. Halogenation of the sulfonamide (2) occurs readily at the 5-position. The 5-iodo product undergoes a Heck coupling with ethyl acrylate . The crystal structures of ethyl [5-ethoxycarbonylmethyl-2-methyl-8-(p- tolylsulfonylamino )-6-quinolyloxy]acetate and [5-carboxymethyl-2-methyl-8-(p- tolylsulfonylamino )-6-quinolyloxy]acetic acid are described.
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30

Wang, Yong Jie, Shi Yao Zhu, and Geng Qiang Zhang. "Selective Esterification of Ethylene Glycol Ethyl Ether over Silica-Cerous." Applied Mechanics and Materials 651-653 (September 2014): 88–91. http://dx.doi.org/10.4028/www.scientific.net/amm.651-653.88.

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With silica-cerous of high activity as catalyst, ethylene glycol ethyl ether acetate was synthesized from ethylene glycol ethyl ether and acetic acid. The proper conditions for the synthesis were obtained by a single factor experiment and orthogonal experiment. Based on 0.3 mol acetic acid, the optimum conditions were as follows: the mass ratio of silica-cerous (15% loaded sulfate cerous) / acetic acid being 0.056 : 1, the mol ratio of acetic acid / ethylene glycol ethyl ether being1 : 1.2, the amount of cyclohexane being 30 mL, reaction temperature being 90 °C, and reaction time being 2 h. Such optimal conditions give the highest yield of 99.53 % and selectivity of 100 % of ethylene glycol ethyl ether acetate. Its structure was confirmed by IR, and the catalyst still has high activity after being reused for five times.
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31

Rádl, Stanislav, Petr Hezký, Petr Konvička, and Ivan Krejčí. "Synthesis and Analgesic Activity of Some Substituted 1-Benzofurans and 1-Benzothiophenes." Collection of Czechoslovak Chemical Communications 65, no. 7 (2000): 1093–108. http://dx.doi.org/10.1135/cccc20001093.

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2-Benzoyl- and 2-(pyridylcarbonyl)-1-benzofuran-3-amines were prepared from 2-hydroxybenzonitrile and corresponding bromoethanone derivatives. 2-Benzoyl- and 2-(pyridylcarbonyl)-1-benzothiophene-3-amines were prepared analogously from 2-sulfanylbenzonitrile. 2-Benzoyl-1-benzofuran-3-amine treated with acetic anhydride or ethyl chloroformate provided the corresponding N-acetyl or N-ethoxycarbonyl derivatives. These N-activated compounds were alkylated with ethyl bromoacetate to provide ethyl N-acetyl-N-(2-benzoyl-1-benzofuran-3-yl)glycinate and ethyl N-(2-benzoyl-1-benzofuran-3-yl)-N-ethoxycarbonylglycinate, respectively. Their mild hydrolysis gave the corresponding glycine derivatives. Methylation of ethyl N-(2-benzoyl-1-benzofuran-3-yl)carbamate gave the corresponding N-methyl carbamate, which was hydrolyzed to N-methyl-(2-benzoyl-1-benzofuran-3-yl)amine. 2-Benzoyl-7-methoxy-1-benzofuran-3-amine and 2-(4-methoxybenzoyl)-1-benzofuran-3-amine were demethylated with boron tribromide to the corresponding hydroxy derivatives; their O-alkylation with ethyl bromoacetate than gave ethyl [(3-amino-2-benzoyl-1-benzofuran-7-yl)oxy]acetate and ethyl {4-[(3-amino-1-benzofuran-2-yl)carbonyl]phenoxy}acetate, respectively. The mild hydrolysis of these esters provided corresponding acids. Similarly, alkylation of the hydroxy derivatives with (dimethylamino)propyl chloride gave corresponding (dimethylamino)propoxy derivatives. 2-Hydroxybenzonitrile treated with 2-bromo-1-(2-, 3-, or 4-pyridyl)ethan-1-one provided the respective 2-(pyridylcarbonyl)-1-benzofuran-3-amine. Similar 2-(pyridylcarbonyl)-1-benzothiophene-3-amines were prepared analogously from 2-sulfanylbenzonitrile. 2-Benzoyl-3-(bromomethyl)-1-benzofuran treated with dimethylamine, 1-methylpiperazine, and sodium 1-methylpiperidine-4-thiolate gave the corresponding alkylation products. Several compounds were found to exhibit considerable analgesic activity.
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32

Sadeghi, Bahareh, Ashraf Namakkoubi, and Alireza Hassanabadi. "BF3.SiO2 Nanoparticles: A Solid Phase Acidic Catalyst for Efficient One-pot Hantzsch Synthesis of 1,4-dihydropyridines." Journal of Chemical Research 37, no. 1 (January 2013): 11–13. http://dx.doi.org/10.3184/174751912x13542975429543.

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The solvent-free Hantzsch reaction between ethyl acetoacetate or 1,3-indandione, an aromatic aldehyde and ammonium acetate catalysed by BF3.SiO2 nanoparticles provided an efficient one-step synthesis of 1,4-dihydropyridines in excellent yields.
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33

Szymańska, Katarzyna, Klaudia Odrozek, Aurelia Zniszczoł, Guzman Torrelo, Verena Resch, Ulf Hanefeld, and Andrzej B. Jarzębski. "MsAcT in siliceous monolithic microreactors enables quantitative ester synthesis in water." Catalysis Science & Technology 6, no. 13 (2016): 4882–88. http://dx.doi.org/10.1039/c5cy02067k.

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Acyltransferase from Mycobacterium smegmatis (MsAcT) immobilised in continuous-flow microchannel reactors with hierarchical pore structure enabled quantitative, full and rapid transesterification of neopentylglycol (NPG) with ethyl acetate in less than one minute.
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34

Xue, Zhiwei, Yuesong Shen, Peiwen Li, Yu Zhang, Yanwei Zeng, and Shemin Zhu. "Controllable synthesis of carbon nanotubes via autothermal reforming of ethyl acetate." Materials & Design 141 (March 2018): 150–58. http://dx.doi.org/10.1016/j.matdes.2017.12.030.

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35

Verma, M., W. Azmi, and S. Kanwar. "Synthesis of ethyl acetate employing celite-immobilized lipase ofBacillus cereusMTCC 8372." Acta Microbiologica et Immunologica Hungarica 56, no. 3 (September 2009): 229–42. http://dx.doi.org/10.1556/amicr.56.2009.3.3.

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36

Inui, Kanichiro, Toru Kurabayashi, and Satoshi Sato. "Direct Synthesis of Ethyl Acetate from Ethanol Carried Out under Pressure." Journal of Catalysis 212, no. 2 (December 10, 2002): 207–15. http://dx.doi.org/10.1006/jcat.2002.3769.

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37

Nagayasu, Takeshi, Masamitsu Miyanaga, Takaaki Tanaka, Takaharu Sakiyama, and Kazuhiro Nakanishi. "Synthesis of dipeptide precursors with an immobilized thermolysin in ethyl acetate." Biotechnology and Bioengineering 43, no. 11 (May 1994): 1108–17. http://dx.doi.org/10.1002/bit.260431115.

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38

Asiedu, N., D. Hildebrandt, and D. Glasser. "Geometry and reactor synthesis: maximizing conversion of the ethyl acetate process." International Journal of Industrial Chemistry 6, no. 2 (February 25, 2015): 77–83. http://dx.doi.org/10.1007/s40090-015-0033-0.

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39

Lutz, Matthias, Jouni Pursiainen, and Reijo Aksela. "Facile Syntheses of Novel Acyclic Polycarboxylic Acids." Zeitschrift für Naturforschung B 60, no. 4 (April 1, 2005): 408–12. http://dx.doi.org/10.1515/znb-2005-0409.

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The synthesis of novel di- and tricarboxylic acids is described. Starting from diethanolamine, a series of N-substituted diethanol derivatives were prepared which were converted in the subsequent reaction step into the corresponding carboxylic acids by treatment with chloroacetic acid. N,N-bis[2- (carboxymethoxy)ethyl]glycine was obtained by N-alkylation of glycine ethylester with ethyl 2-(2- bromoethoxy)acetate
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40

Hantos, Susanne M., Sasmita Tripathy, Najma Alibhai, and Tony Durst. "Synthesis of trichiliasterones A and B — 16-Ketosteroids isolated from Trichilia hirta and Trichilia americana." Canadian Journal of Chemistry 79, no. 11 (November 1, 2001): 1747–53. http://dx.doi.org/10.1139/v01-126.

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The syntheses of trichiliasterone A (3β-hydroxypregnan-2,16-dione) and trichiliasterone B (2-hydroxyandrost-1,4-diene-3,16-dione) have been carried out starting from isoandrosterone and testosterone acetate, respectively. In each synthesis the functionality in the D ring was installed prior to working on ring A. In the case of trichiliasterone A, the D ring chemistry involved a Wittig reaction to generate the 17-methylene group, followed by SeO2 oxidation to give an α,β-unsaturated ketone. Reaction with lithium dimethyl cuprate gave the required 17-ethyl-16-keto functionality. A 2,3-epoxy enol acetate served as the key intermediate for the generation of the 2-keto-3-hydroxy functions in ring A. The transposition of the keto function from C-16 to C-17 in the synthesis of trichiliasterone B was accomplished via oxymercuration–demercuration of the Δ16—17 double bond followed by oxidation. The hydroxyl group at C-2 and the additional ring A unsaturation were introduced by lead tetra-acetate treatment of the 3-keto-4-enone function and subsequent air oxidation.Key words: 16-ketosteroids, plant steroids, Trichilia hirta, trichiliasterones.
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41

Lilly, M., M. G. Lambrechts, and I. S. Pretorius. "Effect of Increased Yeast Alcohol Acetyltransferase Activity on Flavor Profiles of Wine and Distillates." Applied and Environmental Microbiology 66, no. 2 (February 1, 2000): 744–53. http://dx.doi.org/10.1128/aem.66.2.744-753.2000.

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ABSTRACT The distinctive flavor of wine, brandy, and other grape-derived alcoholic beverages is affected by many compounds, including esters produced during alcoholic fermentation. The characteristic fruity odors of the fermentation bouquet are primarily due to a mixture of hexyl acetate, ethyl caproate (apple-like aroma), iso-amyl acetate (banana-like aroma), ethyl caprylate (apple-like aroma), and 2-phenylethyl acetate (fruity, flowery flavor with a honey note). The objective of this study was to investigate the feasibility of improving the aroma of wine and distillates by overexpressing one of the endogenous yeast genes that controls acetate ester production during fermentation. The synthesis of acetate esters by the wine yeastSaccharomyces cerevisiae during fermentation is ascribed to at least three acetyltransferase activities, namely, alcohol acetyltransferase (AAT), ethanol acetyltransferase, and iso-amyl AAT. To investigate the effect of increased AAT activity on the sensory quality of Chenin blanc wines and distillates from Colombar base wines, we have overexpressed the alcohol acetyltransferase gene (ATF1) of S. cerevisiae. The ATF1gene, located on chromosome XV, was cloned from a widely used commercial wine yeast strain of S. cerevisiae, VIN13, and placed under the control of the constitutive yeast phosphoglycerate kinase gene (PGK1) promoter and terminator. Chromoblot analysis confirmed the integration of the modified copy ofATF1 into the genome of three commercial wine yeast strains (VIN7, VIN13, and WE228). Northern blot analysis indicated constitutive expression of ATF1 at high levels in these yeast transformants. The levels of ethyl acetate, iso-amyl acetate, and 2-phenylethyl acetate increased 3- to 10-fold, 3.8- to 12-fold, and 2- to 10-fold, respectively, depending on the fermentation temperature, cultivar, and yeast strain used. The concentrations of ethyl caprate, ethyl caprylate, and hexyl acetate only showed minor changes, whereas the acetic acid concentration decreased by more than half. These changes in the wine and distillate composition had a pronounced effect on the solvent or chemical aroma (associated with ethyl acetate and iso-amyl acetate) and the herbaceous and heads-associated aromas of the final distillate and the solvent or chemical and fruity or flowery characters of the Chenin blanc wines. This study establishes the concept that the overexpression of acetyltransferase genes such asATF1 could profoundly affect the flavor profiles of wines and distillates deficient in aroma, thereby paving the way for the production of products maintaining a fruitier character for longer periods after bottling.
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42

El-Shaieb, Kamal M., Henning Hopf, and Peter G. Jones. "A General Synthesis of 4-Arylaminoquinazoline-2-carbonitriles." Zeitschrift für Naturforschung B 64, no. 7 (July 1, 2009): 858–64. http://dx.doi.org/10.1515/znb-2009-0715.

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4-Arylaminoquinazoline-2-carbonitriles 5a - i were obtained by a one-step synthesis in moderate to good yield by reacting 2-aminoarylbenzimidamides 3a - i with tetracyanoethylene (TCNE, 4) in ethyl acetate at r. t. for 4 - 6 h. The structure of the selected benzimidamide 3c was determined by single crystal X-ray diffraction.
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43

Zhang, Cunyan, Hui Li, Dengke Liu, and Mo Liu. "Ethyl 2-[2-acetyl-5-(3-methylbut-2-enyloxy)phenoxy]acetate." Acta Crystallographica Section E Structure Reports Online 63, no. 11 (October 3, 2007): o4210. http://dx.doi.org/10.1107/s1600536807041530.

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In the title compound, C17H22O5, an intermediate in the synthesis of the antiulcer agent sofalcone, centrosymmetric dimers are formed in the crystal structure due to a strong C—H...O interaction (H...O = 2.41 Å and C—H...O = 170°).
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44

骆, 万兴. "Synthesis of Brönsted Acid Ionic Liquid and Application in Catalytic Synthesis of Ethyl Acetate." Journal of Advances in Physical Chemistry 01, no. 02 (2012): 7–10. http://dx.doi.org/10.12677/japc.2012.12002.

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45

Nasser, A. Jamal Abdul, A. Idhayadhulla, R. Surendra Kumar, and J. Selvin. "Synthesis of Some 2-Thioxo-imidazolidin-4-one Derivatives and its Antimicrobial Activity." E-Journal of Chemistry 7, no. 4 (2010): 1320–25. http://dx.doi.org/10.1155/2010/292461.

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Series of newly prepared 3-{[2,6-bis(4-substituted phenyl)-1- methylpiperidin-4- ylidene] amino}- 2-thioxo-imidazolidin-4-one derivatives (3a-3f) have been synthesized by the cyclization of compound (2a-2f), ethyl chloro acetate and fused sodium acetate. The chemical structures were confirmed by IR,1H NMR and elemental analysis. The synthesized compounds were screened for their antimicrobial activity against four antibacterial and four antifungal organisms.
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46

Hussein, Waleed M., and Ross P. McGeary. "Use of Ethyl (Benzothiazol-2-ylsulfonyl)acetate for Malonic Ester-type Syntheses of Carboxylic Acids and Esters." Australian Journal of Chemistry 67, no. 9 (2014): 1222. http://dx.doi.org/10.1071/ch14085.

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A new methodology for the synthesis of substituted carboxylic acids is described. Alkylation of either ethyl (benzothiazol-2-ylsulfonyl)acetate or ethyl 2-(benzothiazol-2-ylsulfonyl)propionate was achieved with alkyl halides and 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) in dichloromethane solution. These products were then desulfinated and hydrolysed in one-pot under mild conditions to give substituted acetic acids in good-to-excellent yields.
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47

García Ruíz, D. L. "CARBON NANOSTRUCTURES SYNTHESIS FROM ISOPROPANOL AND ETHYL ACETATE APPLYING GREEN CHEMISTRY PRINCIPLES." Revista Mexicana de Ingeniería Química 18, no. 2 (May 27, 2019): 659–71. http://dx.doi.org/10.24275/uam/izt/dcbi/revmexingquim/2019v18n2/garciar.

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48

Xu, Rui, Kunbo Lian, Zhikang Xu, Yuanyuan Yue, Pei Yuan, Xiaojun Bao, Xiaohong Yuan, and Haibo Zhu. "Controllable synthesis of Ir(Rh)–Sn/SiO2 bimetallic catalysts via surface organometallic chemistry for the production of ethanol from hydrogenolysis of ethyl acetate." Catalysis Science & Technology 10, no. 4 (2020): 1086–95. http://dx.doi.org/10.1039/c9cy02071c.

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A series of highly active Ir–Sn/SiO2 and Rh–Sn/SiO2 catalysts for ethyl acetate hydrogenolysis to ethanol were prepared from the grafting synthesis based on the surface organometallic chemistry concept.
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49

Khazaei, Marziyeh, Mohammad Anary-Abbasinejad, Alireza Hassanabadi, and Bahareh Sadeghi. "ZnO Nanoparticles: An Efficient Reagent, Simple and One-Pot Procedure for Synthesis of Highly Functionalized Dihydropyridine Derivatives." E-Journal of Chemistry 9, no. 2 (2012): 615–20. http://dx.doi.org/10.1155/2012/780470.

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A new and efficient one-pot synthesis of dihydropyridones derivatives by four-component reaction between cyanoacetamide, aryl aldehydes, and ethyl acetoacetate with ammonium acetate using nano ZnO is described. The reaction was performed in ethanol under reflux conditions and afforded good yields of products.
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50

Pabin-Szafko, Barbara, Ewa Wisniewska, and Zbigniew Czech. "Selected Radical Azoinitiators in the synthesis of Solvent-Borne Acrylic Pressure-Sensitive Adhesives." Chemistry & Chemical Technology 3, no. 2 (June 15, 2009): 101–6. http://dx.doi.org/10.23939/chcht03.02.101.

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Functional azoinitiators: 2,2’-azobis(2-methyl-4-hydroxybutyl propionate) (AIB-BD), 2,2’-azobis[2-methyl-ω-hydroxy-tri(oxyethylene) propionate] [AIB-Tri(OE)] and 2,2’-azobis[2-methyl-ω-hydroxy-oligo(oxyethylene) propionate] [AIB-OOE(400)] were used in radical polymerization of 2-ethylhexyl acrylate, methyl acrylate and acrylic acid in organic solvent ethyl acetate to prepare solvent-borne acrylic pressure-sensitive adhesives (PSA). After polymerization the viscosity, molecular weight and polydispersity of received acrylic PSA have been evaluated and compared with the product of polymerization initiated by the conventional azoinitiator 2,2’-azobisisobutyronitrile (AIBN).
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