作者:Jonathan E. H. Buston、Iain Coldham、Keith R. Mulholland
DOI:10.1039/a903050f
日期:——
A study of the asymmetric [2,3]-Meisenheimer rearrangement of tertiary amine-N-oxides was carried out, in order to provide a method for the preparation of chiral allylic alcohols. The use of 2-azabornane as a chiral auxiliary gives rise to chiral tertiary amine-N-oxides, which undergo the [2,3]-Meisenheimer rearrangement with high levels of stereoselectivity. Reductive N,O-bond cleavage, mediated by
对叔胺-N-氧化物的不对称[2,3] -Meisenheimer重排进行了研究,以提供一种制备手性烯丙醇的方法。使用2-氮杂硼烷作为手性助剂会产生手性叔胺-N-氧化物,这些化合物会经历[2,3] -Meisenheimer重排,并具有高水平的立体选择性。通过超声介导的O-烯丙基-羟胺的还原性N,O-键裂解允许获得手性烯丙基醇。