Copper-catalyzed visible-light-induced ring-opening carbonylation of sulfonium salts
作者:Youcan Zhang、Zhi-Peng Bao、Chang-Sheng Kuai、Xiao-Feng Wu
DOI:10.1016/j.jcat.2023.06.039
日期:2023.10
strategy for the synthesis of sulfur-containing carboxylic acid derivatives through copper/visible light catalyzed ring-opening carbonylation of sulfonium salts. The protocol employs photoredox to promote the selective cleavage of sulfonium salts C(sp3)-S bond, while performing sequential functionalization to form vicinal C–C and C-X (X = O or N) bonds in the presence of carbon monoxide and nucleophiles
在此,我们开发了一种直接有效的策略,通过铜/可见光催化锍盐的开环羰基化合成含硫羧酸衍生物。该方案采用光氧化还原来促进锍盐 C(sp3)-S 键的选择性裂解,同时在一氧化碳和亲核试剂存在下进行顺序功能化以形成邻位 C-C 和 CX(X = O 或 N)键。多种底物成功转化为所需的羰基化产物,产率中等至良好,具有良好的官能团耐受性和优异的化学选择性。重要的是,这种方法可以很容易地扩展到生物活性分子的后期修饰。