Buchwald–Hartwig Amination and C–S/S–H Metathesis of Aryl Sulfides by Selective C–S Cleavage Mediated by Air- and Moisture-Stable [Pd(NHC)(μ-Cl)Cl]<sub>2</sub> Precatalysts: Unified Mechanism for Activation of Inert C–S Bonds
作者:Shiyi Yang、Xiang Yu、Albert Poater、Luigi Cavallo、Catherine S. J. Cazin、Steven P. Nolan、Michal Szostak
DOI:10.1021/acs.orglett.2c03717
日期:2022.12.23
the Buchwald–Hartwig amination and C–S/S–H metathesis of aryl sulfides by selective activation of C–S bonds mediated by well-defined, air- and moisture-stable Pd(II)–NHC precatalysts, [Pd(NHC)(μ-Cl)Cl]2. This class of Pd(II)–NHC precatalysts displays excellent activity in the cross coupling of aryl sulfides. Most crucially, we unravel the unified mechanism for activation of C–S bonds in the C–N cross-coupling
我们报告了一项关于 Buchwald-Hartwig 胺化和芳基硫化物的 C-S/S-H 复分解的综合实验和机理研究,通过选择性激活 C-S 键,由定义明确的空气和水分稳定的 Pd(II) 介导–NHC 预催化剂,[Pd(NHC)(μ-Cl)Cl] 2。这类 Pd(II)–NHC 预催化剂在芳基硫化物的交叉偶联中表现出优异的活性。最重要的是,我们揭示了在 C-N 交叉偶联和 C-S 复分解流形中激活 C-S 键的统一机制,其中惰性 C-S 键充当有价值的胺或硫醚产物的前体。