Construction of Fused Pyrrolidines and β-Lactones by Carbene-Catalyzed C−N, C−C, and C−O Bond Formations
作者:Xingxing Wu、Lin Hao、Yuexia Zhang、Maiti Rakesh、Rambabu N. Reddi、Song Yang、Bao-An Song、Yonggui Robin Chi
DOI:10.1002/anie.201700045
日期:2017.4.3
A carbene‐catalyzed intermolecular C−N bond formation, which initiates a highly selective cascade reaction for the synthesis of pyrrolidine fused β‐lactones, is disclosed. The nitrogen‐containing bicyclic β‐lactone products are obtained with good yields and excellent stereoselectivities. Synthetic transformations of the reaction products into useful functional molecules, such as amino catalysts, can
公开了碳烯催化的分子间CN键的形成,其引发了用于吡咯烷稠合的β-内酯的合成的高度选择性的级联反应。获得的含氮双环β-内酯产品收率高,立体选择性好。在温和的反应条件下,可以有效地实现反应产物向有用的功能分子如氨基催化剂的合成转化。从机理上讲,本研究提供了在挑战性卡宾催化的不对称碳-杂原子键形成反应中调节杂原子(如氮原子)的反应性的见解。