A simple and highly stereoselective route to E-.alpha.,.beta.-unsaturated aldehydes
作者:Moncef Bellassoued、Assieh Majidi
DOI:10.1021/jo00061a027
日期:1993.4
Zinc bromide mediated reaction of alpha,alpha-bis(trimethylsilyl)-tert-butylacetaldimine (3) with a wide range of aldehydes takes place under mild conditions and affords the corresponding alpha,beta-unsaturated aldehydes in good yields and with very high E stereoselectivity (>98%). This procedure is successfully applied to the preparation of intermediates for retinoid and natural product synthesis.