An asymmetric intramolecular Stetter reaction catalyzed by a chiral triazolium precatalyst bearing a pyridine moiety
摘要:
A number of chiral triazolium salts incorporating pyridine rings have been investigated as precatalysts for an asymmetric intramolecular Stetter reaction. The salt structure and reaction parameters were optimized, resulting in very good yield and enantioselectivity. This reaction was found to be applicable to a wide range of salicylaldehyde-derived substrates. (C) 2012 Elsevier Ltd. All rights reserved.