Michael-Type Addition of Carbocuprates to Acetylenic Silyl Ketone: A New Entry to Stereodefined Polyenes

Abstract
Ethynyl triphenylsilyl ketone (1) reacts smoothly with various carbocuprates, affording 3-functionalized propenoylsilanes. When using unsaturated carbocuprates, dienoylsilanes 2d-f are obtained. These synthetic equivalents of dienals can further react under Wittig conditions to afford a new and stereodefined entry into the class of silylated polyenes 4.

This publication has 0 references indexed in Scilit: