Cobalt-Catalyzed Regio- and Stereoselective Hydrosilylation of 1,3-Diynes To Access Silyl-Functionalized 1,3-Enynes
作者:Hui Leng Sang、Yongyi Hu、Shaozhong Ge
DOI:10.1021/acs.orglett.9b01836
日期:2019.7.5
A regio- and stereoselective hydrosilylation of 1,3-diynes has been developed relying on catalysts generated from bench-stable Co(acac)2 and dppp ligand. A variety of symmetrical and unsymmetrical 1,3-diynes undergo this transformation, yielding the corresponding silyl-functionalized 1,3-enynes in high yields with excellent regioselectivity. Gram-scale reactions and further transformations of the silyl-containing
1,3-二炔的区域和立体选择性氢化硅烷化已经开发出来,它依赖于稳定的Co(acac)2和dppp配体产生的催化剂。各种对称和不对称的1,3-二炔都经历了这种转变,以高收率和良好的区域选择性产生了相应的甲硅烷基官能化的1,3-烯炔。含甲硅烷基的1,3-烯炔产物的克级反应和进一步转化突出了这种1,3-二炔共催化氢化硅烷化反应的合成效用。