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.
(Salen)chromium(III)/DMAP: An Efficient Catalyst System for the Selective Synthesis of 5-Substituted Oxazolidinones from Carbon Dioxide and Aziridines
作者:Aaron W. Miller、SonBinh T. Nguyen
DOI:10.1021/ol049689t
日期:2004.7.1
aziridines. The oxazolidinone products were produced in high yield and selectivity from the opening of the aziridine at the most substituted N-C bond. This catalyst system worked well for a wide variety of monosubstituted N-aryl and N-alkyl aziridines as well as a 2,3-disubstituted N-alkyl aziridine.