Cyclopropenation of Alkylidene Carbenes Derived from α-Silyl Ketones
作者:Jingwei Li、Chunrui Sun、Daesung Lee
DOI:10.1021/ja101998w
日期:2010.5.19
A new cyclopropanation reaction involving Calpha-Si bond insertion of alkylidene carbenes derived from alpha-silyl ketones has been developed. This unprecedented alkylidene carbene reactivity features excellent selectivity for insertion into Calpha-Si bonds rather than insertion into Cgamma-H bonds or addition to gamma,delta-double or -triple bonds. The selectivity trend clearly indicates that the
Mild and efficient catalytic method for α-trimethylsilyl ketones
作者:Chunrui Sun、Jingwei Li、Silviya Demerzhan、Daesung Lee
DOI:10.3998/ark.5550190.0012.403
日期:——
A mild, efficient and convenient method for the synthesis of α-silyl ketones from corresponding aldehydes and trimethylsilyldiazomethane in the presence of a catalytic amount of indium(III) chloride has been developed.