Merging chiral organocatalysts: enantio- and diastereoselective direct vinylogous Mannich reaction of alkylimines†
Xiao-Feng Xiong,Zhi-Jun Jia,Wei Du,Kun Jiang,Tian-Yu Liu
Chemical Communications Pub Date : 10/08/2009 00:00:00 , DOI:10.1039/B917408G
Abstract

An enantio- and diastereoselective direct vinylogous Mannich reaction of α,α-dicyanoolefins and N-sulfonyl alkylimines has been developed by the catalysis of a new family of bifunctional organocatalysts merging chiral BINOL and 9-amino-9-deoxyepi-cinchona alkaloid skeletons, from which chiral β-, δ- or γ-amino compounds could be efficiently derived.

Graphical abstract: Merging chiral organocatalysts: enantio- and diastereoselective direct vinylogous Mannich reaction of alkylimines