Copper-Catalyzed Defluorinative Thioannulation of Trifluoropropynes for the Synthesis of 1,2-Dithiole-3-thiones
作者:Feng Wei、Xiao-Qin Shen、Xiao-Hong Zhang、Xing-Guo Zhang
DOI:10.1002/adsc.201800846
日期:2018.10.18
A simple and practical strategy for the preparation of 1,2‐dithiole‐3‐thiones via copper‐catalyzed defluorinative thioannulation of trifluoropropynes has been developed using elemental sulfur as the sole sulfur source. This reaction displays a wide substrate scope and high functional group tolerance to afford the corresponding S‐heterocycles in moderate to good yields and features efficient construction
通过元素硫作为唯一的硫源,开发了一种简单实用的方法,该方法通过铜催化的三氟丙炔的脱氟硫代环化反应制备1,2-二硫代3-硫酮。该反应显示出较宽的底物范围和较高的官能团耐受性,能够以中等至良好的产率提供相应的S-杂环,并具有通过CF 3基团的CF键断裂有效构建多个CS键的特征。