An Efficient and Convenient Method for the Preparation of α-Methylenated Ketones from Silyl Enol Ethers
作者:Masaji Hayashi、Teruaki Mukaiyama
DOI:10.1246/cl.1987.1283
日期:1987.7.5
In the presence of a catalytic amount of stannous halide, silyl enol ethers react with bromomethyl methyl ether to give the corresponding α-bromomethyl ketones, which are smoothly converted to α-methylenated ketones on the successive addition of tertiary amine by one-pot procedure. This method is successfully applied to a synthesis of sarkomycin intermediate.