Palladium-Catalyzed Oxidative Coupling of Dibenzosiloles with α-Diazo Esters: Formal Replacement of the Silyl Group with Carbenes
作者:Shichao Li、Wen-Yan Tong、Qi Zhou、Xiang Yu、Jiang-Ling Shi、Shu-Sen Li、Shuanglin Qu、Jianbo Wang
DOI:10.1021/acs.organomet.3c00015
日期:2023.4.24
diazoacetates via a metal carbene migratory insertion process. In this reaction, carbenic carbon formally displaces silicon atoms through continuous cleavage of two C(sp2)–Si bonds and successive formation of two C(sp2)–C(sp3) bonds on a carbenic carbon. Density functional theory (DFT) studies reveal that the reaction proceeds through a Pd(II)/Pd(IV) catalyticcycle, in which the two C–Si bonds are cleaved by