Asymmetric synthesis of 4H-1,3-oxazines: enantioselective reductive cyclization of N-acylated β-amino enones with trichlorosilane catalyzed by chiral Lewis bases
作者:Masaharu Sugiura、Mako Kumahara、Makoto Nakajima
DOI:10.1039/b905102c
日期:——
N-Acylated beta-amino enones reductively cyclize by treatment with trichlorosilane and a chiral Lewis base catalyst to afford optically active 4H-1,3-oxazines, which can be transformed to other chiral compounds without racemization.
通过用三氯硅烷和手性路易斯碱催化剂处理,N-酰化的β-氨基烯酮还原环化,得到旋光的4H-1,3-恶嗪,可以将其转化为其他手性化合物而无需外消旋化。