1,4-Silyl migration from sp2 carbon to carbonyl oxygen proceeded by the treatment of (Z)-β-trimethylsilyl-α,β-unsaturated ketones with copper(I) tert-alkoxide to afford vinylmetal species, which reacted with allylic halides to produce enol trimethylsilyl ethers of β-alk-2-enyl-α,β-unsaturated ketones with complete retention of configuration.
通过使用
铜(I)叔烷氧基处理(Z)-β-三甲基
硅基-α,β-不饱和酮,实现了从sp2碳到羰基氧的1,4-
硅基迁移,生成了
乙烯基金属物种,这些物种与烯丙基卤反应,产生了β-烷-2-烯基-α,β-不饱和酮的烯醇三甲基
硅醚,且构型保持完整。