Character of Organogermanium Compounds in Organo Group 14 Element Compounds and Their Application to Organic Synthesis

Abstract

Reactions of chlorotrimethylgermane with the lithium salts of acetonitrile, acetic esters, and acetamides were investigated. The germyl groups were introduced in stepwise on the α-carbanions to give finally tris (trimethylgermyl) methyl compounds. Peterson olefination reaction of (trimethylgermyl)acetic esters with aldehydes gave selectively (E)-α, β- Bunsaturated esters.