The ruthenium-catalyzed regioselective allylic amination of tertiary allylic acetates with several types of amines has been accomplished. The reaction was effectively catalyzed by Cp*RuCl2/5,5′-dimethyl-2,2′-bipyridine or its related ruthenium catalyst systems, and α,α-disubstituted allylicamines were formed as a single regioisomer in moderate to high yields.
Synthesis of α,α-Disubstituted Aryl Amines by Rhodium-Catalyzed Amination of Tertiary Allylic Trichloroacetimidates
作者:Jeffrey S. Arnold、Gregory T. Cizio、Hien M. Nguyen
DOI:10.1021/ol202313y
日期:2011.10.21
The rhodium-catalyzed regioselective amination of tertiary allylic trichloroacetimidates with unactivated aromatic amines is a direct and efficient approach to the preparation of α,α-disubstituted allylic aryl amines in good yield and with excellent regioselectivity. This method is applicable to a variety of unactivated primary and secondary amines and allows for the preparation of reverse prenylated