Oxidation of Sulfides to Sulfoxides with Hypervalent (<i>tert</i>-Butylperoxy)iodanes
作者:Masahito Ochiai、Akinobu Nakanishi、Takao Ito
DOI:10.1021/jo970081q
日期:1997.6.1
involving the intermediary formation of the sulfonium species 11 by nucleophilic attack of sulfide toward the iodine(III) atom of 2 is proposed for the oxidation in acetonitrile-water in the presence and the absence of BF(3). Et(2)O. On the other hand, the oxidation of sulfoxides in dichloromethane probably proceeds by a radical process, which involves the decomposition at room temperature of 2 via
Controllable Sulfoxidation and Sulfenylation with Organic Thiosulfate Salts via Dual Electron- and Energy-Transfer Photocatalysis
作者:Yiming Li、Ming Wang、Xuefeng Jiang
DOI:10.1021/acscatal.7b02735
日期:2017.11.3
Sulfoxides and sulfides are two important functional groups in organic molecules, containing different valence states of sulfur. Both sulfoxidation and sulfenylation with common sulfurating reagents were successfully tuned via a facile variation of the atmosphere under photocatalyzed conditions. The sulfoxidation and sulfenylation transformations involved tandem electron-/energy-transfer and single-electron-transfer
Sulfoxide and Sulfone Synthesis via Electrochemical Oxidation of Sulfides
作者:Jin Kyu Park、Sunwoo Lee
DOI:10.1021/acs.joc.1c01657
日期:2021.10.1
sulfides to the corresponding sulfoxides and sulfones under electrochemical conditions is reported. Sulfoxides are selectively obtained in good yield under a constant current of 5 mA for 10 h in DMF, while sulfones are formed as the major product under a constant current of 10 or 20 mA for 10 h in MeOH. The oxygen of both the sulfoxide and sulfone function is derivedfrom water.
报道了在电化学条件下二芳基硫化物和芳基烷基硫化物氧化成相应的亚砜和砜。在 DMF 中,5 mA 恒定电流下 10 小时选择性地获得亚砜,而在 MeOH 中,10 或 20 mA 恒定电流下 10 小时形成的主要产物是砜。亚砜和砜官能团的氧均来自水。
Reactions of 2-halovinyl aryl sulfoxides with organometallic reagents
(E)- and (Z)-2-halovinyl aryl sulfoxides 1-4 were subjected to reactions with organocopper, organomagnesium, or organolithium reagents. The organometallic reagents gave different products: diorganocuprates led to formation of carbon-carbon bond, with production of alkenyl sulfoxides 5-10, whereas formation of carbon-sulfur bond and production of diaryl or aryl alkyl sulfoxides 11-13 were observed in the reaction with the other organometallics. Possible mechanisms for the two observed processes are briefly discussed.