Results 1 to 10 of about 5,141 (265)

Unsymmetrical sulfoxides with sterically hindered catechol fragment: synthesis, structure, electrochemical properties, and antiradical activity [PDF]

Beilstein Journal of Organic Chemistry
New unsymmetrical sulfoxides containing a redox-active sterically hindered catechol fragment and a nonpolar hydrocarbon substituent at the sulfoxide group were synthesized via the oxidation of the corresponding catechol thioethers with hydrogen peroxide.
Daria A. Burmistrova, Vasiliy A. Fokin, Oleg P. Demidov, Mikhail A. Kiskin, Maxim V. Arsenyev, Andrey I. Poddel’sky, Nadezhda T. Berberova, Ivan V. Smolyaninov   +7 more
doaj   +2 more sources

Hidden Activities of Tyrosine Phenol-Lyase and Tryptophan Indole-Lyase: Recombinant PLP-Dependent C–C Lyases as New Biocatalysts for Antimicrobial Thiosulfinate Generation [PDF]

Pharmaceuticals
Background: Lyases are used in a wide scope of applications, making them invaluable tools in both industrial biotechnology and molecular biology. Many examples of lyases belong to the extensive family of pyridoxal 5′-phosphate (PLP)-dependent enzymes ...
Vitalia V. Kulikova, Svetlana V. Revtovich, Kseniya P. Levshina, Yaroslav V. Kozmenko, Natalya V. Anufrieva, Elena A. Morozova, Pavel N. Solyev   +6 more
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Research progress on metabolic pathway of S-alk(en)ylcysteine sulfoxides in Allium

Guangxi Zhiwu, 2023
Allium L. is one of the largest genera of angiosperms, including garlic, onion, green Chinese onion, Chinese chive and other important vegetable crops with unique spicy flavor.
Huamin ZHANG, Xinling ZHANG, Shouheng YIN, Liya WANG, Bingbing LI   +4 more
doaj   +1 more source

Sulfoxide Reductases and Applications in Biocatalytic Preparation of Chiral Sulfoxides: A Mini-Review

Frontiers in Chemistry, 2021
Chiral sulfoxides are valuable organosulfur compounds that have been widely used in medicinal and organic synthesis. Biocatalytic approaches for preparing chiral sulfoxides were developed in the past few years, mainly through asymmetric oxidation of ...
Tao Peng, Xiaoling Cheng, Yongzheng Chen, Jiawei Yang, Jiawei Yang   +4 more
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Fritsch–Buttenberg–Wiechell rearrangement of magnesium alkylidene carbenoids leading to the formation of alkynes

Beilstein Journal of Organic Chemistry, 2021
A series of 1-heteroatom-substituted vinyl p-tolyl sulfoxides were prepared and treated with organometallic reagents to evaluate which combination of sulfoxides and organometallic reagents yielded alkynes the most efficiently.
Tsutomu Kimura, Koto Sekiguchi, Akane Ando, Aki Imafuji   +3 more
doaj   +1 more source

Synthesis and Preliminary Screening of the Biological Activity of Sulindac Sulfoximine Derivatives

Applied Sciences, 2023
Sulindac is a well-known anti-inflammatory agent, sometimes employed as an adjuvant in antitumor therapy. Due to the recent interest in sulfoximine for its potential chemotherapeutics, we decided to transform sulindac and its methyl ester into the ...
Cosimo Cardellicchio, Valentino Laquintana, Rosa Maria Iacobazzi, Nunzio Denora, Antonio Scilimati, Maria Grazia Perrone, Maria Annunziata M. Capozzi   +6 more
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Advance in the Synthesis of Sulfoxides and Sulfinamides from β-Sulfinyl Esters

Organics, 2023
Sulfoxides and sulfinamides play important roles in the pharmaceutical industry, organic synthesis and fine chemicals. This review will demonstrate that, under catalysis by transition metals, β-sulfinyl esters, as nucleophilic reagents, react with a ...
Xianjie Yin, Qiaoling Zhang, Qingle Zeng
doaj   +1 more source

A Study on the Chemistry and Biological Activity of 26-Sulfur Analogs of Diosgenin: Synthesis of 26-Thiodiosgenin S-Mono- and Dioxides, and Their Alkyl Derivatives

Molecules, 2022
A chemoselective procedure for MCPBA oxidation of 26-thiodiosgenin to corresponding sulfoxides and sulfone was elaborated. An unusual equilibration of sulfoxides in solution was observed.
Aneta M. Tomkiel, Dorota Czajkowska-Szczykowska, Ewa Olchowik-Grabarek, Lucie Rárová, Szymon Sękowski, Jacek W. Morzycki   +5 more
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Cysteine Sulfoxides Enhance Steroid Hormone Production via Activation of the Protein Kinase A Pathway in Testis-Derived I-10 Tumor Cells

Molecules, 2020
Testosterone plays an important role in male sexual characteristics and maturation, and decreased testosterone levels increase the risk of several diseases.
Yuya Nakayama, Hsin-Jung Ho, Miki Yamagishi, Hiroyuki Ikemoto, Michio Komai, Hitoshi Shirakawa   +5 more
doaj   +1 more source

Highly Efficient Selective Oxygenation of Sulfides to Sulfoxides by Oxalic Acid Dihydrate in the Presence of H2O2

E-Journal of Chemistry, 2012
A highly efficient method for the oxidation of sulfides to sulfoxides using oxalic acid dihydrate in the presence of hydrogen peroxide has been developed.
Masoud Mokhtary, Mohammad Qandalee, Masoumeh Rastegar Niaki   +2 more
doaj   +1 more source