Oxidation of<i>S</i>,<i>S</i>-Diaryl-<i>N</i>-(<i>p</i>-tolylsulfonyl)sulfilimines and<i>N</i>-Unsubstituted<i>S</i>,<i>S</i>-Diaryl-sulfilimines with Potassium Hyperoxide Anion Radical (O<sub>2</sub><sup>\ewdot</sup>) in the Presence of 1-Bromopropane, Benzoyl Chloride,<i>p</i>-Tolylsulfonyl Chloride, Carbon Tetrachloride, Chloroform, or Dichloromethane in Aprotic Media
S-diaryl-N-(p-tolylsulfonyl)sulfilimines and N-unsubstituted diaryl-sulfilimines with hyperoxide anion radical (O2\ewdot) in the presence of 18-crown-6 as a catalyst together with 1-bromopropane/benzene, benzoyl chloride/benzene, p-tolylsulfonyl chloride/benzene, carbontetrachloride, chloroform, or dichloromethane, gave the corresponding sulfoximines, through nucleophilic oxidation with an intermediary dioxy
A convenient preparation of N- (arenesulfonyl) sulfoximines by oxidation of N- (arenesulfonyl) sulfilimines with sodium hypochlorite in a two phase system
N-(Arenesulfonyl) sulfilimines can be oxidized to the corresponding sulfoximes in high yields with sodium hypochlorite in an AcOEt-H2O two phase system in the presence of quaternary ammonium salts as catalysts.
Synthesis of Sulfilimines via Multicomponent Reaction of Arynes, Sulfamides, and Thiosulfonates
作者:Pei Xie、Yating Zheng、Yuping Luo、Jinyun Luo、Leifang Wu、Zhihua Cai、Lin He
DOI:10.1021/acs.orglett.3c02217
日期:2023.8.25
In this work, a facile and efficient method for the synthesis of sulfilimines through multicomponentreaction of arynes, sulfamides, and thiosulfonates was developed. A variety of structurally diverse substrates and functional groups were very compatible in the reaction, giving the corresponding sulfilimines in good to high yields. This protocol could be conducted on a gram scale, and the product was
Selective S-Arylation of Sulfenamides with Arynes: Access to Sulfilimines
作者:Yifeng Guo、Zhe Zhuang、Xiaoying Feng、Quanyu Ma、Ningning Li、Chaochao Jin、Hiroto Yoshida、Jiajing Tan
DOI:10.1021/acs.orglett.3c02785
日期:2023.10.6
Sulfilimines, the aza analogues of sulfoxides, are of increasing interest in medicinal and agrochemical research programs. However, the development of efficient routes for their synthesis has remained relatively unexplored. In this study, we report a transition metal-free, selective S-arylation reaction between sulfenamides and arynes, enabling the facile preparation of structurally diverse sulfilimines