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Artykuły w czasopismach na temat „Organosulfur”

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Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 20 lutego 2023

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1

Arisawa, Mieko, i Masahiko Yamaguchi. "Transition-metal-catalyzed synthesis of organosulfur compounds". Pure and Applied Chemistry 80, nr 5 (1.01.2008): 993–1003. http://dx.doi.org/10.1351/pac200880050993.

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Rhodium complexes are efficient catalysts for the synthesis of organosulfur compounds. They catalyze the addition reaction of organosulfur groups to unsaturated compounds, the substitution of C-H with organosulfur groups, and single-bond metathesis reactions. They cleave S-S bonds and transfer the organosulfur groups to various organic and inorganic molecules, including alkynes, allenes, disulfides, sulfur, isonitriles, imines, diphosphines, thiophosphinites, hydrogen, 1-alkylthio-1-alkynes, thioesters, and allyl sulfides.

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Qiu, Yichen, Yunchao Feng, Ashley C. Lindsay, Xianhai Zeng i Jonathan Sperry. "Synthesis of bio-based 2-thiothiophenes". Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 379, nr 2209 (13.09.2021): 20200350. http://dx.doi.org/10.1098/rsta.2020.0350.

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While the synthesis of bio-based compounds containing carbon, oxygen and (to a lesser extent) nitrogen is well studied, the production of organosulfur compounds from biomass has received virtually no attention, despite their widespread application throughout the chemical industry. Herein, we demonstrate that a range of bio-based 2-thiothiophenes are available from the biopolymer cellulose, proving that functionally diverse small-molecule organosulfurs can be prepared independent of fossil carbon. This article is part of the theme issue ‘Bio-derived and bioinspired sustainable advanced materials for emerging technologies (part 2)’.

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3

Chauvin, Jean-Philippe R., Zosia A. M. Zielinski i Derek A. Pratt. "Inspired by garlic: insights on the chemistry of sulfenic acids and the radical-trapping antioxidant activity of organosulfur compounds". Canadian Journal of Chemistry 94, nr 1 (styczeń 2016): 1–8. http://dx.doi.org/10.1139/cjc-2015-0438.

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Organosulfur compounds have long been recognized as important antioxidants for the preservation of petroleum-derived products. It has also been suggested that the health benefits of garlic and related plant species can be ascribed to the radical-trapping antioxidant activity of some of their unique organosulfur constituents, such as allicin. This account highlights our efforts to elucidate the radical-trapping antioxidant mechanisms of allicin and related plant-derived organosulfur compounds as well as the organosulfur compounds used to preserve commercial and industrial products.

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4

Shine, Henry J. "Researches in organosulfur chemistry by a non-organosulfur chemist". Sulfur reports 15, nr 3 (sierpień 1994): 381–93. http://dx.doi.org/10.1080/01961779408050635.

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5

Doddipatla, Srinivas, Chao He, Ralf I. Kaiser, Yuheng Luo, Rui Sun, Galiya R. Galimova, Alexander M. Mebel i Tom J. Millar. "A chemical dynamics study on the gas phase formation of thioformaldehyde (H2CS) and its thiohydroxycarbene isomer (HCSH)". Proceedings of the National Academy of Sciences 117, nr 37 (28.08.2020): 22712–19. http://dx.doi.org/10.1073/pnas.2004881117.

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Complex organosulfur molecules are ubiquitous in interstellar molecular clouds, but their fundamental formation mechanisms have remained largely elusive. These processes are of critical importance in initiating a series of elementary chemical reactions, leading eventually to organosulfur molecules—among them potential precursors to iron-sulfide grains and to astrobiologically important molecules, such as the amino acid cysteine. Here, we reveal through laboratory experiments, electronic-structure theory, quasi-classical trajectory studies, and astrochemical modeling that the organosulfur chemistry can be initiated in star-forming regions via the elementary gas-phase reaction of methylidyne radicals with hydrogen sulfide, leading to thioformaldehyde (H2CS) and its thiohydroxycarbene isomer (HCSH). The facile route to two of the simplest organosulfur molecules via a single-collision event affords persuasive evidence for a likely source of organosulfur molecules in star-forming regions. These fundamental reaction mechanisms are valuable to facilitate an understanding of the origin and evolution of the molecular universe and, in particular, of sulfur in our Galaxy.

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6

Arisawa, Mieko, i Masahiko Yamaguchi. "Rhodium-Catalyzed Synthesis of Organosulfur Compounds Involving S-S Bond Cleavage of Disulfides and Sulfur". Molecules 25, nr 16 (7.08.2020): 3595. http://dx.doi.org/10.3390/molecules25163595.

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Organosulfur compounds are widely used for the manufacture of drugs and materials, and their synthesis in general conventionally employs nucleophilic substitution reactions of thiolate anions formed from thiols and bases. To synthesize advanced functional organosulfur compounds, development of novel synthetic methods is an important task. We have been studying the synthesis of organosulfur compounds by transition-metal catalysis using disulfides and sulfur, which are easier to handle and less odiferous than thiols. In this article, we describe our development that rhodium complexes efficiently catalyze the cleavage of S-S bonds and transfer organothio groups to organic compounds, which provide diverse organosulfur compounds. The synthesis does not require use of bases or organometallic reagents; furthermore, it is reversible, involving chemical equilibria and interconversion reactions.

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7

Egbujor, Melford Chuka, Maria Petrosino, Karim Zuhra i Luciano Saso. "The Role of Organosulfur Compounds as Nrf2 Activators and Their Antioxidant Effects". Antioxidants 11, nr 7 (26.06.2022): 1255. http://dx.doi.org/10.3390/antiox11071255.

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Nuclear factor erythroid 2-related factor 2 (Nrf2) signaling has become a key pathway for cellular regulation against oxidative stress and inflammation, and therefore an attractive therapeutic target. Several organosulfur compounds are reportedly activators of the Nrf2 pathway. Organosulfur compounds constitute an important class of therapeutic agents in medicinal chemistry due to their ability to participate in biosynthesis, metabolism, cellular functions, and protection of cells from oxidative damage. Sulfur has distinctive chemical properties such as a large number of oxidation states and versatility of reactions that promote fundamental biological reactions and redox biochemistry. The presence of sulfur is responsible for the peculiar features of organosulfur compounds which have been utilized against oxidative stress-mediated diseases. Nrf2 activation being a key therapeutic strategy for oxidative stress is closely tied to sulfur-based chemistry since the ability of compounds to react with sulfhydryl (-SH) groups is a common property of Nrf2 inducers. Although some individual organosulfur compounds have been reported as Nrf2 activators, there are no papers with a collective analysis of these Nrf2-activating organosulfur compounds which may help to broaden the knowledge of their therapeutic potentials and motivate further research. In line with this fact, for the first time, this review article provides collective and comprehensive information on Nrf2-activating organosulfur compounds and their therapeutic effects against oxidative stress, thereby enriching the chemical and pharmacological diversity of Nrf2 activators.

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8

Yuen, Pong Kau, i Cheng Man Diana Lau. "New approach for assigning mean oxidation number of carbons to organonitrogen and organosulfur compounds". Chemistry Teacher International 4, nr 1 (8.10.2021): 1–13. http://dx.doi.org/10.1515/cti-2021-0015.

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Abstract Organonitrogen and organosulfur compounds are abundant in the natural environment. To understand the biological redox pathways properly, it is important for learners to be able to count the oxidation number of organic carbons. However, the process of counting is not always easy. In addition, organonitrogen and organosulfur molecules are seldom studied. To compensate these problems, this paper explores the bond-dividing method, which can effectively determine the mean oxidation number of carbons of organonitrogen and organosulfur molecules. This method uses the cleavage of carbon-sulfur and carbon-nitrogen bonds to obtain the organic and inorganic fragments. The mean oxidation numbers of carbon atoms, nitrogen atoms, and sulfur atoms can be calculated by the molecular formulas of their fragments. Furthermore, when comparing organosulfur or organonitrogen molecules in a redox conversion, the changes of the mean oxidation numbers of carbon atoms, nitrogen atoms, and sulfur atoms can be used as indicators to identify the redox positions and determine the number of transferred electrons.

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9

Nakahodo, Tsukasa, Midori O. Ishitsuka, Yuta Takano, Takahiro Tsuchiya, Takeshi Akasaka, M. Angeles Herranz, Nazario Martin, Dirk M. Guldi i Shigeru Nagase. "Organosulfur-Based Fullerene Materials". Phosphorus, Sulfur, and Silicon and the Related Elements 186, nr 5 (1.05.2011): 1308–11. http://dx.doi.org/10.1080/10426507.2010.523033.

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10

Kiełbasiński, Piotr. "Biocatalysis in Organosulfur Chemistry". Phosphorus, Sulfur, and Silicon and the Related Elements 186, nr 5 (1.05.2011): 1104–18. http://dx.doi.org/10.1080/10426507.2010.541397.

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11

Weil, Edward D. "RECENT INDUSTRIAL ORGANOSULFUR CHEMISTRY". Phosphorus, Sulfur, and Silicon and the Related Elements 59, nr 1-4 (maj 1991): 31–46. http://dx.doi.org/10.1080/10426509108045699.

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12

Uehara, Kazuhiro, i Katsuhiko Tomooka. "Planar Chiral Organosulfur Cycles". Chemistry Letters 38, nr 11 (5.11.2009): 1028–29. http://dx.doi.org/10.1246/cl.2009.1028.

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13

ITO, OSAMU. "Reactivities of organosulfur radicals." NIPPON GOMU KYOKAISHI 61, nr 3 (1988): 201–8. http://dx.doi.org/10.2324/gomu.61.201.

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14

Tarbell, D. S. "Researches on Organosulfur Compounds". Sulfur reports 6, nr 1 (wrzesień 1986): 1–11. http://dx.doi.org/10.1080/01961778608082489.

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15

Douglass, Irwin B., i Miriam L. Douglass. "Adventures in Organosulfur Chemistry". Sulfur reports 17, nr 1 (październik 1995): 129–53. http://dx.doi.org/10.1080/01961779508047887.

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16

Chou, Liang Hsiung. "On Improvements of Rubberized Concrete with Organosulfur Compounds". Advanced Materials Research 156-157 (październik 2010): 1459–62. http://dx.doi.org/10.4028/www.scientific.net/amr.156-157.1459.

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Crumb rubbers have been investigated as additives to concrete and promising results have been observed. Organosulfur compounds from a petroleum-refining factory were used to modify the surface properties of crumb rubbers. The intermolecular interaction forces between cement hydration products (C-S-H) and rubber crumbs were measured directly by an atomic force microscope (AFM) equipped with a colloid probe. Experimental data indicate that crumb rubber surface is more hydrophilic after the treatment with organosulfur compounds and the intermolecular interaction forces between C-S-H and rubber increase with the treatment of crumb rubbers with organosulfur compounds. Furthermore, these increased interaction forces lead to an increased concrete strength.

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17

Rickly, Pamela S., Hongyu Guo, Pedro Campuzano-Jost, Jose L. Jimenez, Glenn M. Wolfe, Ryan Bennett, Ilann Bourgeois i in. "Emission factors and evolution of SO₂ measured from biomass burning in wildfires and agricultural fires". Atmospheric Chemistry and Physics 22, nr 23 (13.12.2022): 15603–20. http://dx.doi.org/10.5194/acp-22-15603-2022.

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Abstract. Fires emit sufficient sulfur to affect local and regional air quality and climate. This study analyzes SO2 emission factors and variability in smoke plumes from US wildfires and agricultural fires, as well as their relationship to sulfate and hydroxymethanesulfonate (HMS) formation. Observed SO2 emission factors for various fuel types show good agreement with the latest reviews of biomass burning emission factors, producing an emission factor range of 0.47–1.2 g SO2 kg−1 C. These emission factors vary with geographic location in a way that suggests that deposition of coal burning emissions and application of sulfur-containing fertilizers likely play a role in the larger observed values, which are primarily associated with agricultural burning. A 0-D box model generally reproduces the observed trends of SO2 and total sulfate (inorganic + organic) in aging wildfire plumes. In many cases, modeled HMS is consistent with the observed organosulfur concentrations. However, a comparison of observed organosulfur and modeled HMS suggests that multiple organosulfur compounds are likely responsible for the observations but that the chemistry of these compounds yields similar production and loss rates as that of HMS, resulting in good agreement with the modeled results. We provide suggestions for constraining the organosulfur compounds observed during these flights, and we show that the chemistry of HMS can allow organosulfur to act as an S(IV) reservoir under conditions of pH > 6 and liquid water content >10−7 g sm−3. This can facilitate long-range transport of sulfur emissions, resulting in increased SO2 and eventually sulfate in transported smoke.

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18

Praveen, Reddy P., i Rao V. Uma Maheswara. "Effect of nutrient and physical parameters on dibenzothiophene desulfurization activity of Streptomyces sp. VUR PPR 101 isolated from oil contaminated soils of mechanical workshops". Research Journal of Chemistry and Environment 26, nr 6 (25.05.2022): 86–99. http://dx.doi.org/10.25303/2606rjce086099.

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Motor vehicles use petroleum products and release sulfur dioxide gas which causes deleterious effects to environment and humans. The sulfur containing compounds present in petroleum products especially organosulfur compounds serve as major source of sulfur dioxide emission. During refining process, petroleum products are subjected to hydrodesulfurization for the removal of sulfur, which is not an efficient method and most of the organosulfur compounds are not eliminated particularly dibenzothiophene and its derivatives. A process known as biodesulfurization which employs microorganisms was suggested to be an alternative to hydrodesulfurization. The dibenzothiophene was selected as model organosulfur compound to perform biodesulfurization studies due its high recalcitrant nature. The microbes which remove sulfur via 4S pathway from organosulfur compounds (dibenzothiophene) are commercially important. In the present study, the effect of different nutrient sources (carbon, nitrogen and amino acid sources at different concentrations) and physical parameters like temperature and pH on dibenzothiophene desulfurization activity (via 4S pathway) of Streptomyces sp. VUR PPR 101 was studied and optimized. The optimum carbon and nitrogen sources for DBT biodesulfurization activity were found to be 4% glucose and 1% yeast extract, respectively. The best amino acid source reported was 0.3 mg/ml glutamine. At a temperature of 300C and pH 7.0, the organism showed maximum biodedulfurization activity.

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19

Kropp, Kevin G., i Phillip M. Fedorak. "A review of the occurrence, toxicity,and biodegradation of condensed thiophenes found in petroleum". Canadian Journal of Microbiology 44, nr 7 (1.07.1998): 605–22. http://dx.doi.org/10.1139/w98-045.

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Condensed thiophenes comprise a significant portion of the organosulfur compounds in petroleum and in other products from fossil fuels. Dibenzothiophene (DBT) has served as a model compound in biodegradation studies for over two decades. However, until quite recently, few other organosulfur compounds were studied, and their fates in petroleum-contaminated environments are largely unknown. This paper presents a review of the types of organosulfur compounds found in petroleum and summarizes the scant literature on toxicity studies with condensed thiophenes. Reports on the biodegradation of benzothiophene, alkylbenzothiophenes, DBT, alkylDBTs, and naphthothiophenes are reviewed with a focus on the identification of metabolites detected in laboratory cultures. In addition, recent reports on quantitative studies with DBT and naphtho[2,1-b]thiophene indicate the existence of polar sulfur-containing metabolites that have escaped detection and identification. Key words: biodegradation, condensed thiophenes, dibenzothiophene, microbial metabolism, toxicity.

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20

Robert M. Moriarty, Rajesh Naithani i Bhushan Surve. "Organosulfur Compounds in Cancer Chemoprevention". Mini-Reviews in Medicinal Chemistry 7, nr 8 (1.08.2007): 827–38. http://dx.doi.org/10.2174/138955707781387939.

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21

Firouzabadi, Habib, i Arezu Jamalian. "Reduction of oxygenated organosulfur compounds". Journal of Sulfur Chemistry 29, nr 1 (22.01.2008): 53–97. http://dx.doi.org/10.1080/17415990701684776.

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22

Pope, John M., Toshitada Sato, Eiichi Shoji, Noboru Oyama, Kevin C. White i Daniel A. Buttry. "Organosulfur/Conducting Polymer Composite Cathodes". Journal of The Electrochemical Society 149, nr 7 (2002): A939. http://dx.doi.org/10.1149/1.1482768.

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Takeda, Takeshi, Yasuo Horikawa, Tadahiro Nomura, Mikako Watanabe, Ichiro Miura i Tooru Fujiwara. "Desulfurizative Titanation of Organosulfur Compounds". Phosphorus, Sulfur, and Silicon and the Related Elements 120, nr 1 (1.01.1997): 391–92. http://dx.doi.org/10.1080/10426509708545563.

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24

Vazquez-Prieto, Marcela A., i Roberto M. Miatello. "Organosulfur compounds and cardiovascular disease". Molecular Aspects of Medicine 31, nr 6 (grudzień 2010): 540–45. http://dx.doi.org/10.1016/j.mam.2010.09.009.

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25

Eckert-Maksic, Mirjana, i Davor Margetic. "Ionic hydrogenation of organosulfur compounds". Energy & Fuels 5, nr 2 (marzec 1991): 327–32. http://dx.doi.org/10.1021/ef00026a018.

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26

Crank, George, i Achmad Mursyidi. "Photochemistry of some organosulfur pesticides". Journal of Photochemistry and Photobiology A: Chemistry 68, nr 3 (wrzesień 1992): 289–97. http://dx.doi.org/10.1016/1010-6030(92)85238-p.

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27

Harpp, David N., John Robertson, Kim Laycock i David Butler. "Organosulfur Antioxidants in Hydrocarbon Oils". Sulfur reports 4, nr 6 (lipiec 1985): 195–219. http://dx.doi.org/10.1080/01961778508082477.

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28

Truce, William E. "Forty Years in Organosulfur Chemistry". Sulfur reports 9, nr 4 (styczeń 1990): 351–57. http://dx.doi.org/10.1080/01961779008048733.

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29

Kulich, Donald M., i J. Reid Shelton. "Organosulfur antioxidants: Mechanisms of action". Polymer Degradation and Stability 33, nr 3 (styczeń 1991): 397–410. http://dx.doi.org/10.1016/0141-3910(91)90085-6.

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30

Yoshioka, Yuri, Shinichi Matsumura i Masanori Morimoto. "Deodorant Activity of Black Cumin Seed Essential Oil against Garlic Organosulfur Compound". Biomolecules 11, nr 12 (14.12.2021): 1874. http://dx.doi.org/10.3390/biom11121874.

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The deodorant activity of black cumin (Nigella sativa L.) seed, a spice used to flavor curry and vegetable foods in Southwest Asia, against garlic (Allium sativum L.) organosulfur compounds related to human malodor was evaluated. Black cumin seed essential oil showed remarkable deodorant activity against garlic essential oil. The mode of action of this deodorant activity was presumed to be that black cumin seed essential oil covalently reacted with the organosulfur compounds in garlic. Therefore, thymoquinone, which is a major constituent in black cumin seed essential oil, and allyl mercaptan, which is one of the organosulfur compounds produced by cutting garlic, were reacted in vitro, and the products were purified and elucidated using spectroscopic data. As a result, these substances were identified as different allyl mercaptan adducts to dihydrothymoquinone. This chemical reaction was presumed to play a key role in the deodorant activity of black cumin seed essential oil.

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31

Subroto, E., Y. Cahyana, Tensiska, Mahani, F. Filianty, E. Lembong, E. Wulandari, D. Kurniati, R. A. Saputra i F. Faturachman. "Bioactive compounds in garlic (Allium sativum L.) as a source of antioxidants and its potential to improve the immune system: a review". Food Research 5, nr 6 (7.11.2021): 1–11. http://dx.doi.org/10.26656/fr.2017.5(6).042.

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Garlic (Allium sativum L.) is a type of spice derived from layered tubers, widely used as a source of flavour, taste, and cooking spices. Garlic is a therapeutic ingredient rich in bioactive compounds and antioxidants. The purpose of compiling this review is to provide information about bioactive compounds in garlic as a source of bioactive compounds and their potential to improve the immune system. This review also discussed the various effects of garlic processing on the stability and activity of bioactive compounds and the changes that occur during storage. Garlic contains high levels of organosulfur compounds, micronutrient selenium (Se), and flavonoids. The bioactive compounds in garlic are generally extracted using ethanol as a solvent. Food processing treatments such as boiling, frying, and others can have a positive impact on the organosulfur compounds. Organosulfur levels correlate with changes in antioxidant capacity and activity. The bioactive compounds of garlic can potentially boost the immune system or act as immunostimulants.

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Avgeri, Ioanna, Konstantina Zeliou, Spyridon A. Petropoulos, Penelope J. Bebeli, Vasileios Papasotiropoulos i Fotini N. Lamari. "Variability in Bulb Organosulfur Compounds, Sugars, Phenolics, and Pyruvate among Greek Garlic Genotypes: Association with Antioxidant Properties". Antioxidants 9, nr 10 (9.10.2020): 967. http://dx.doi.org/10.3390/antiox9100967.

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In order to assess the diversity of Greek garlic (Allium sativum L.) landraces, 34 genotypes including commercial ones were grown in the same field and their content in organosulfur compounds, pyruvate, total sugars, and total phenolics, alongside antioxidant capacity, was determined. The organosulfur compounds were studied by Gas Chromatography–Mass Spectrometry (GC–MS) after ultrasound-assisted extraction in ethyl acetate, identifying 2-vinyl-4H-1,3-dithiin and 3-vinyl-4H-1,2-dithiin as the predominant compounds, albeit in different ratios among genotypes. The bioactivity and the polar metabolites were determined in hydromethanolic extracts. A great variability was revealed, and nearly one-third of landraces had higher concentration of compounds determining bioactivity and organoleptic traits than the imported ones. We recorded strong correlations between pyruvate and total organosulfur compounds, and between antioxidant capacity and phenolics. In conclusion, chemical characterization revealed great genotype-dependent variation in the antioxidant properties and the chemical characters, identifying specific landraces with superior traits and nutritional and pharmaceutical value.

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Dewi, Ardhia Deasy Rosita, Joni Kusnadi i Wen-Ling Shih. "Comparison of the Main Bioactive Compounds and Antioxidant Activity from Garlic Water-soluble and Garlic Oil". KnE Life Sciences 3, nr 5 (11.09.2017): 20. http://dx.doi.org/10.18502/kls.v3i5.975.

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<p class="Els-Abstract-text">Garlic is a natural source which has abundant organosulfur constituents. Garlic is divided into water-soluble organosulfur constituents mainly SAC (S-allylcystein), NAC (N-acetylcysteine) and oil soluble organosulfur constituents such as DATS (diallyl trisulfide), DADS (diallyl disulfide), DAS (diallyl sulfide). The aim of this research was to compare the bioactive constituents and antioxidant activity between garlic water-soluble and garlic oil. Garlic water-soluble constituents were identified by Liquid Chromatography–Mass Spectrometry (LC-MS) and five constituents were found, namely N-acetylcysteine (NAC), cysteinyl-alanine, phenol-2-2-benzoxazolyl and two unknown constituents. The GC-MS chromatogram also showed three main constituents present in garlic oil as diallyldisulphide (DADS), diallyltrisulphide (DATS) and D-limonene. Interestingly, garlic water-soluble extract had higher antioxidant activity 70 % ± 0.02 % in comparison with garlic oil 58 % ± 0.07 %. This study conducts a novel preparation of garlic water-soluble for enhancing antioxidant properties on garlic novel preparation.</p><p> </p>

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Tang, Shuai, Qiliang Chen, Yubing Si, Wei Guo, Bingwei Mao i Yongzhu Fu. "Size Effect of Organosulfur and In Situ Formed Oligomers Enables High‐Utilization Na–Organosulfur Batteries". Advanced Materials 33, nr 33 (11.07.2021): 2100824. http://dx.doi.org/10.1002/adma.202100824.

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35

Kopelberg, M., I. L. Goldman, J. E. P. Debaene i B. S. Schwartz. "Antiplatelet Activity is Positively Correlated with Pungency and Solids in Onion (Allium cepa L.)". HortScience 30, nr 4 (lipiec 1995): 769A—769. http://dx.doi.org/10.21273/hortsci.30.4.769a.

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Onion (Allium cepa L.) and other vegetable Alliums have long been recognized for the antiplatelet properties. Consumers may benefit from the medicinal value of onions because they are commonly eaten raw in salads and the antiplatelet factor is destroyed by heat. Recent work indicates antiplatelet activity in Allium sp. may be due to the presence of native organosulfur compounds. The concentration of organosulfur compounds correlates positively with pungency, varies with onion cultivar, and is influenced by environmental factors. Bulb dry matter content, or solids, is positively correlated with pungency. Because antiplatelet activity may also be based on the activity of organosulfur compounds, it is possible these three factors are significantly correlated. The objective of this investigation was to examine the relationship among pungency, solids, and antiplatelet activity in four diverse onion genotypes. Replicated trials consisting of two mild and two pungent genotypes were conducted at four locations in 1994. Onion bulbs were harvested and analyzed for all three traits. Results from this investigation indicate significant positive correlations between antiplatelet activity, pungency, and solids in onion.

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36

Debaene, Jan E. P., i I. L. Goldman. "Environmental Effects and Postharvest Flux of Antiplatelet Activity, Pungency, and Solids in Onion (Allium cepa)". HortScience 32, nr 3 (czerwiec 1997): 543D—543. http://dx.doi.org/10.21273/hortsci.32.3.543d.

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Onion is a species within the Allium genus with great culinary importance. Onion extract contains organosulfur compounds that influence pungency and inhibit blood platelet aggregation. Antiplatelet activity has the potential of reducing cardiovascular disease. Onions are typically held in postharvest storage for up to 160 days, during which time volatile organosulfur compounds may be affected. A study was conducted to evaluate antiplatelet activity, pungency, and percent solids during cold storage of onions grown in replicated plots in Wisconsin and Oregon in 1994 and 1995. Organosulfur compound concentration and antiplatelet activity were also measured in progeny derived from crosses of inbred lines contrasting for pungency grown during 1995 and 1996 in Wisconsin. For the first study, bulbs were evaluated for antiplatelet activity, percent solids and pungency at 40day intervals after harvest. Significant differences were detected for these traits among years, states, dates of sampling, and lines. During the 120-day postharvest period in 1994, antiplatelet activity increased by 25% and 80% for Oregon and Wisconsin, respectively, averaged over all lines. During the same period in 1995, antiplatelet activity decreased by 35% and 4% in the two locations. For three out of four lines, antiplatelet activity was 4.6% higher for Wisconsin than Oregon. Averaged over states, antiplatelet activity was 9.7% higher in 1994 compared to 1995. Pungency was positively correlated with antiplatelet activity in Wisconsin. Broad-sense heritabilities were calculated for antiplatelet activity and organosulfur compound concentration. These data demonstrate that environmental factors influence postharvest flux of antiplatelet activity and pungency in onion.

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Zhang, Danna, Guochun Lv, Xiaomin Sun, Chenxi Zhang i Zhiqiang Li. "A theoretical study on the formation and oxidation mechanism of hydroxyalkylsulfonate in the atmospheric aqueous phase". RSC Advances 9, nr 47 (2019): 27334–40. http://dx.doi.org/10.1039/c9ra05193g.

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Park, Kyung-Ran, Ji-Youn Kim, Jin Tae Hong i Hyung-Mun Yun. "A novel organosulfur compound, thiacremonone, regulates RANKL-induced osteoclast differentiation". RSC Advances 7, nr 49 (2017): 30657–62. http://dx.doi.org/10.1039/c7ra02049j.

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Wang, Ming, i Xuefeng Jiang. "Prospects and Challenges in Organosulfur Chemistry". ACS Sustainable Chemistry & Engineering 10, nr 2 (3.01.2022): 671–77. http://dx.doi.org/10.1021/acssuschemeng.1c07636.

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Voss, Jürgen. "History of nineteenth-century organosulfur chemistry". Journal of Sulfur Chemistry 30, nr 2 (1.04.2009): 167–207. http://dx.doi.org/10.1080/17415990802673017.

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Aggarwal, Varinder K. "Book Review, Organosulfur Chemistry: Synthetic Aspects". Synthesis 1996, nr 06 (czerwiec 1996): 790–92. http://dx.doi.org/10.1055/s-1996-4275.

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Block, Eric. "The Organosulfur Chemistry of the Onion". Phosphorus, Sulfur, and Silicon and the Related Elements 58, nr 1-4 (kwiecień 1991): 3–15. http://dx.doi.org/10.1080/10426509108040623.

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Posner, G. H. "New synthetic methodology using organosulfur compounds". Pure and Applied Chemistry 62, nr 10 (1.01.1990): 1949–56. http://dx.doi.org/10.1351/pac199062101949.

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LIEBMAN, J. F., K. S. K. CRAWFORD i S. W. SLAYDEN. "ChemInform Abstract: Thermochemistry of Organosulfur Compounds". ChemInform 25, nr 24 (19.08.2010): no. http://dx.doi.org/10.1002/chin.199424301.

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MARTIN, G. "ChemInform Abstract: Pyrolysis of Organosulfur Compounds". ChemInform 25, nr 24 (19.08.2010): no. http://dx.doi.org/10.1002/chin.199424304.

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Okazaki, Renji, i Kei Goto. "Synthesis of highly reactive organosulfur compounds". Heteroatom Chemistry 13, nr 5 (2002): 414–18. http://dx.doi.org/10.1002/hc.10068.

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DOUGLAS, I. B., i M. L. DOUGLASS. "ChemInform Abstract: Adventures in Organosulfur Chemistry". ChemInform 28, nr 6 (4.08.2010): no. http://dx.doi.org/10.1002/chin.199706289.

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Rivera, Jose L., Pedro Navarro-Santos, Roberto Guerra-Gonzalez i Enrique Lima. "Interaction of Refractory Dibenzothiophenes and Polymerizable Structures". International Journal of Polymer Science 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/103945.

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We carried out first principles calculations to show that polymerizable structures containing hydroxyl (alcoholic chain) and amino groups are suitable to form stable complexes with dibenzothiophene (DBT) and its alkyl derivates. These sulfur pollutants are very difficult to eliminate through traditional catalytic processes. Spontaneous and exothermic interactions at 0 K primarily occur through the formation of stable complexes of organosulfur molecules with monomeric structures by hydrogen bonds. The bonds are formed between the sulfur atom and the hydrogen of the hydroxyl group; additional hydrogen bonds are formed between the hydrogen atoms of the organosulfur molecule and the nitrogen atoms of the monomers. We vary the number of methylene groups in the alcoholic chain containing the hydroxyl group of the monomer and find that the monomeric structure with four methylene groups has the best selectivity towards the interaction with the methyl derivates with reference to the interaction with DBT. Even this study does not consider solvent and competitive adsorption effects; our results show that monomeric structures containing amino and hydroxyl groups can be used to develop adsorbents to eliminate organosulfur pollutants from oil and its derivates.

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Oswal, Preeti, Aayushi Arora, Sakshi Gairola, Anupama Datta i Arun Kumar. "Organosulfur, organoselenium, and organotellurium ligands in the development of palladium, nickel, and copper-based catalytic systems for Heck coupling". New Journal of Chemistry 45, nr 46 (2021): 21449–87. http://dx.doi.org/10.1039/d1nj02971a.

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Matos, Priscilla Mendonça, i Robert A. Stockman. "Synthetic approaches and applications of sulfonimidates". Organic & Biomolecular Chemistry 18, nr 33 (2020): 6429–42. http://dx.doi.org/10.1039/d0ob01191f.

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