本文首次描述了无环与环状硝酮和末端炔烃之间的催化对映选择性 Kinugasa 反应。催化量的容易获得的 PINAP/CuX 复合物,原位生成,有效地催化了衣笠反应,产生了一系列具有良好对映选择性和中等非对映选择性和产率的 β-内酰胺。在反应条件下可以耐受广泛的硝酮和末端炔烃,包括很少报道的烷基取代炔烃。Further investigations proved that the PINAP/CuX catalytic system enabled the synthesis of monobactams on the gram scale (without loss of stereoselectivity and yield) and also both enantiomers by the appropriate choice of readily available atropisomeric