Stereoselective synthesis of 3,4-di-substituted mercaptolactones via photoredox-catalyzed radical addition of thiophenols
作者:Farzana Kouser、Vijay Kumar Sharma、Masood Rizvi、Shaista Sultan、Neha Chalotra、Vivek K. Gupta、Utpal Nandi、Bhahwal Ali Shah
DOI:10.1016/j.tetlet.2018.04.046
日期:2018.5
A visible light mediated radical addition of thiophenols on 4-phenylbut-3-enoic acids to give diastereoselective synthesis of 3,4-disubstituted γ-lactones is reported. The reaction precludes the conventional prerequisite of conjugate addition. Furthermore, the lactones were successfully utilized in the synthesis of γ-ketoamides.