In this study, we present a novel and efficient approach for the oxidative esterification of sulfenamides using phenyliodonium diacetate, enabling the synthesis of sulfinimidate esters and sulfilimines under mild and metal-free conditions, with yields reaching up to 99%. The protocol is readily scalable and compatible with a diverse range of substrates and functional groups, and we demonstrate its
Redox-Neutral Strategy for Sulfilimines Synthesis via S-Arylation of Sulfenamides
作者:Guoling Huang、Xunbo Lu、Fangpeng Liang
DOI:10.1021/acs.orglett.3c01077
日期:2023.5.12
transition-metal-free and redox-neutral synthesis of sulfilimines was realized through the S-arylation of readily obtainable sulfenamides employing diaryliodonium salts. The pivotal step encompassed the resonance between bivalent nitrogen-centered anions, engendered postdeprotonation of sulfenamides under alkaline conditions, and sulfinimidoyl anions. The experimental outcomes demonstrate that sulfinimidoyl anionic
Copper-Catalyzed Aerobic <i>S</i>-Amination of Sulfenamides for the Synthesis of Sulfinamidines
作者:Guoling Huang、Jianlin Ye、Minxi Tan、Yuetong Chen、Xunbo Lu
DOI:10.1021/acs.joc.3c01353
日期:2023.12.1
Herein, we present a copper-catalyzed oxidative amination of sulfenamides for the synthesis of sulfinamidines. By the employment of air as the terminal oxidant, a diverse array of secondary and primary amines can be efficiently transformed into their corresponding products. This method is well-suited for last-stage functionalization, and the underlying mechanism has been investigated. The transformation
Hypervalent Iodine Mediated Synthesis of Sulfinamidines from Sulfenamides
作者:Guoling Huang、Jianlin Ye、Muhammad Adnan Bashir、Yuetong Chen、Wenjing Chen、Xunbo Lu
DOI:10.1021/acs.joc.3c00999
日期:2023.8.18
In this study, we present a novel, efficient method for the oxidative amination of sulfenamides using diacetoxyiodobenzene (PhI(OAc)2) and amines under basic conditions. This innovative technique streamlines the synthesis of sulfinamidines under mild, metal-free conditions, achieving outstanding yields of up to 99%. Furthermore, we propose possible pathways that elucidate the observed molecular sequence
The visible-light-promoted iron-catalyzed S–N cross coupling of thiols with dioxazolones is described. This reaction occurred via an exogenous-photosensitizer-free process and showed wide substrate scope under mild reaction conditions.