1,2-Addition of dimethyl(phenyl)silyllithium to cyclic α,β-unsaturated ketones and regiospecific generation of cyclic silyl enol ethers through brook rearrangement of the 1,2-addition products
作者:Masato Koreeda、Sangho Koo
DOI:10.1016/s0040-4039(00)94639-2
日期:1990.1
A highly convenient two-step sequence for the regiospecific synthesis of cyclic silyl enol ethers has been developed involving the 1,2-addition of dimethyl(phenyl)silyllithium to cyclic α,β-unsaturated ketones followed by the treatment of the resulting silyl carbinols with a catalytic amount of NaH in THF at 25 °C.
已开发出非常方便的两步法用于环状甲硅烷基烯醇醚的区域专一性合成,包括将二甲基(苯基)甲硅烷基锂1,2-加成到环状α,β-不饱和酮上,然后用四氢呋喃处理所得甲硅烷基甲醇。在25°C下在THF中催化量的NaH。