A general method for making bicyclic compounds with nitrogen at a bridgehead—application to the halichlorine spiro subunit
作者:Derrick L. J. Clive、Maolin Yu、Zhiyong Li
DOI:10.1039/b413481h
日期:——
N-Protected β-amino aldehydes having the nitrogen in a ring are easily converted into MoritaâBaylisâHillman adducts; O-acetylation and N-deprotection result in spontaneous cyclization to bicyclic structures having nitrogen at a bridgehead.
氮位于环上的 N 保护δ-氨基醛很容易转化为莫里塔-贝利斯-希尔曼加合物;O-乙酰化和 N-脱保护可导致自发环化,形成氮位于桥头的双环结构。