Direct Access to 1,1-Dicarbonyl Sulfoxonium Ylides from Aryl Halides or Triflates: Palladium-Catalyzed Carbonylation
作者:Yang Yuan、Xiao-Feng Wu
DOI:10.1021/acs.orglett.9b01926
日期:2019.7.5
The synthesis of 1,1-dicarbonyl sulfoxonium ylides by palladium-catalyzed carbonylation of aryl halides or triflates with α-carbonyl sulfoxonium ylides has been developed for the first time. This method provides a general approach to synthetically useful 1,1-dicarbonyl sulfoxonium ylides in high efficiency. The protocol displays a wide substrate scope, showing that the resulting 1,1-dicarbonyl sulfoxonium
首次开发了通过钯催化的芳基卤化物或三氟甲磺酸酯与α-羰基sulf氧基化羰基化物的钯催化羰基化合成1,1-二羰基sulf氧基化鎓盐。该方法提供了一种通用方法,可以高效地合成有用的1,1-二羰基亚砜基鎓盐。该方案显示了较宽的底物范围,表明所得的1,1-二羰基亚砜基鎓盐已转化为相应的1,3-二羰基化合物。