作者:Puneet Kumar、Janis Louie
DOI:10.1021/ol300534j
日期:2012.4.20
An easy and expeditious route to substituted piperidines is described. A Ni-phosphine complex was used as catalyst for [4 + 2] cycloaddition of 3-azetidinone and alkynes. The reaction has broad substrate scope and affords piperidines in excellent yields and excellent regioselectivity. In the reaction of an enantiopure azetidinone, complete retention of stereochemistry was observed.
描述了一种简单快捷的取代哌啶路线。Ni-膦配合物用作3-氮杂环丁酮和炔烃的[4+2]环加成反应的催化剂。该反应具有广泛的底物范围,并以优异的产率和优异的区域选择性提供哌啶。在对映体纯氮杂环丁酮的反应中,观察到立体化学的完全保留。