State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering , Nanjing University , 163 Xianlin Avenue , Nanjing , Jiangsu 210023 , China.
Org Lett. 2018 Jun 1;20(11):3174-3178. doi: 10.1021/acs.orglett.8b00909. Epub 2018 May 15.
A visible light-promoted hydrosilylation of alkynes has been explored and achieved using 1 mol % organic dye Eosin Y as the photocatalyst and a catalytic amount of thiol as the radical quencher. The corresponding alkenylsilanes were provided with high regio- and stereoselectivites in the reactions of various terminal and internal alkynes. The experimental evidence shows that the reaction is preferentially initiated by a single electron transfer process, and a photoredox pathway is suggested.
可见光促进的炔烃氢硅烷化反应已经被探索并实现，使用 1 mol%的有机染料曙红 Y 作为光催化剂和催化量的硫醇作为自由基猝灭剂。在各种末端和内部炔烃的反应中，相应的烯基硅烷具有高的区域和立体选择性。实验证据表明，反应优先通过单电子转移过程引发，并提出了一种光氧化还原途径。
