Asymmetric Synthesis of Heterocyclic Chloroamines and Aziridines by Enantioselective Protonation of Catalytically Generated Enamines**
作者:Liam A. McLean、Matthew W. Ashford、James W. B. Fyfe、Alexandra M. Z. Slawin、Andrew G. Leach、Allan J. B. Watson
DOI:10.1002/chem.202200060
日期:2022.3.16
Brønsted acid catalysis enables the synthesis of chiral vicinal chloroamines via asymmetric protonation of catalytically generated prochiral chloroenamines. The process is highly enantioselective, with the origin of asymmetry and catalyst substituent effects elucidated by DFT calculations. The method allows access to rare heterocycle-substituted vicinal chloroamines, aziridines, and vicinal diamines