Palladium-Catalyzed Thiocarbonylative Synthesis of α,β-Unsaturated Thioesters Using <i>S</i>-Aryl Thioformates as the Thioester Sources
作者:Zekai Shen、Yong-Wang Huo、Xinxin Qi、Xiao-Feng Wu
DOI:10.1021/acs.orglett.3c01400
日期:2023.6.9
A palladium-catalyzed thiocarbonylation reaction for the synthesis of α,β-unsaturated thioesters from vinyl triflates with S-aryl thioformates as the thioester sources has been developed. The reaction proceeded smoothly at low temperature, and a variety of α,β-unsaturated thioesters were produced in moderate to high yields with very good functional group tolerance. This protocol features mild reaction
开发了一种钯催化的硫代羰基化反应,用于以硫代甲酸 S-芳基酯为硫酯源,从三氟甲磺酸乙烯酯合成 α,β-不饱和硫酯。反应在低温下顺利进行,并以中等到高的产率生成了多种 α,β-不饱和硫酯,并且具有非常好的官能团耐受性。该方案具有温和的反应条件、良好的底物范围,并避免使用有毒的 CO 气体或有气味的硫醇,这使其成为通过硫酯转移过程合成 α、β-不饱和硫酯的一个有价值的补充。