A general route to α-alkyl (E)-α,β-unsaturated aldehydes
作者:Nour Lahmar、Jamaa Aatar、Taïcir Ben Ayed、Hassen Amri、Moncef Bellassoued
DOI:10.1016/j.jorganchem.2006.03.015
日期:2006.6
Bis(trimethylsilyl)-tert-butylaldimines 3 react with aldehydes in the presence of zinc bromide at room temperature to give, after hydrolysis, the desired α-alkyl α,β-ethylenic aldehydes in good yield and with very high Estereoselectivity. The reaction was believed to proceed via the α-silyl β-siloxyimines 4.