Palladium‐Catalyzed Enantioselective Thiocarbonylation of Styrenes

作者：Xihong Wang, Bing Wang, Xuemei Yin, Wangzhi Yu, Yang Liao, Jialin Ye, Min Wang, Lianrui Hu, Jian Liao · 发表于：Angewandte Chemie International Edition · 年份：2019 · DOI：10.1002/anie.201905905 · 被引用次数：137 · 研究领域：Sulfur-Based Synthesis Techniques、Catalytic C–H Functionalization Methods、Chemical Synthesis and Reactions

A highly enantioselective thiocarbonylation of styrenes with CO and thiols has been achieved by Pd catalysis, providing highly enantioenriched thioesters in good to excellent yields. Key to the successful execution of this reaction is the use of a chiral sulfoxide-(P-dialkyl)-phosphine (SOP) ligands. This thiocarbonylation proceeds smoothly under mild reaction conditions (1 atm CO and 0 °C) and displays broad substrate scope. Also demonstrated is that this transformation can be conducted using surrogates of CO, greatly increasing the safety aspects of running the reaction. The generality and utility of the method is manifested by its application to the synthetic transformations of thioester products and the direct acylation of cysteine-containing dipeptides. A primary mechanism was investigated and a plausible catalytic cycle was proposed.