Michael addition of silylated telluronium allylide to α,β-unsaturated esters: facile and stereoselective synthesis of trimethylsilylvinylcyclopropane derivatives

Abstract

Trimethylsilylated diisobutyltelluronium allylide, generated from 3-trimethylsilylprop-2-enyldiisobutyltelluronium bromide 1 with lithium 2,2,6,6-tetramethylpiperidide (LTMP), reacts with α,β-unsaturated esters to afford trimethylsilylvinylcyclopropane derivatives via Michael addition in excellent yields with high stereoselectivity.