Stereoselective Isomerisation of N-Allyl Aziridines into Geometrically StableZ Enamines by Using Rhodium Hydride Catalysis
作者:Derek S. Tsang、Sharon Yang、France-Aimée Alphonse、Andrei K. Yudin
DOI:10.1002/chem.200701322
日期:2008.1.18
the most likely mechanism of isomerisation would involve a rhodium hydride addition/beta-hydride elimination sequence. We show that the observed selectivity cannot be adequately explained by this pathway and is more consistent with initial CH-activation followed by rearrangement to form a five-membered cyclometallated rhodium intermediate. This intermediate subsequently undergoes reductive elimination
Palladium‐Catalyzed Fluorinative Bifunctionalization of Aziridines and Azetidines with <i>gem</i>‐Difluorocyclopropanes
作者:Dongdong Li、Chaoren Shen、Zhiyao Si、Lu Liu
DOI:10.1002/anie.202310283
日期:2023.10.16
An unprecedented fluorinative bifunctionalization of aziridines and azetidines with gem-difluorocyclopropanes is disclosed via Pd catalysis for the first time, which reveals a novel ring-opening mode of cyclic amines.