Visible-Light-Promoted Thiyl Radical Generation from Sodium Sulfinates: A Radical–Radical Coupling to Thioesters
作者:Ganganna Bogonda、Dilip V. Patil、Hun Young Kim、Kyungsoo Oh
DOI:10.1021/acs.orglett.9b01218
日期:2019.5.17
available starting materials: acid chlorides and sodium sulfinates. The facile generation of acyl radical species under the visible light photoredox conditions allows the formation of thiylradical species from sodium sulfinates via multiple single electron transfer reactions, where the final acyl radical-thiyl radical coupling has been accomplished. The direct radical–radical coupling strategy offers a mild
Oxidation of 1-[(aryl)(phenylseleno)methyl]-, 1-[(aryl)(arylthio)-(phenylseleno)methyl]-, and l-[(aryl)(diphenylseleno)methyl]benzotriazoles with<i>m</i>-chloroperbenzoic acid
作者:Yoon Ho Kang、Kyongtae Kim
DOI:10.1002/jhet.5570340617
日期:1997.11
During the last decade, benzotriazole (1) has received much attention as an excellent synthetic auxiliary [1]. Recently Katritzky, et al. [2] studied the oxidation of 1-(phenylthiomethyl)benzotriazole (2a) and 1-(2-phenyl-1-phenylthioethyl)benzotriazole (2b) and obtained their sulfones and sulfoxides by treatment with wj-chloroperbenzoic acid (m-CPBA) and sodium periodate, respectively. No compounds
Sulfonyl Chlorides as Thiol Surrogates for Carbon–Sulfur Bond Formation: One-Pot Synthesis of Thioethers and Thioesters
作者:Torsten Cellnik、Alan R. Healy
DOI:10.1021/acs.joc.2c00330
日期:2022.5.6
A method to synthesize thioethers and thioesters directly from readily available sulfonyl chlorides is reported. We demonstrate that a transient intermediate formed during phosphine-mediated deoxygenation of sulfonyl chlorides can be trapped in situ by activated alcohols or carboxylic acids to effect carbon–sulfurbond formation. The method is operationally simple and tolerates a broad range of functional