

METAL-CATALYZED [3+2] CYCLOADDITIONS OF AZOMETHINE IMINES

Abstract
In the last decade, metal-catalyzed [3+2] cycloadditions of azomethine imines have emerged as a regioselective and stereoselective method for the synthesis of pyrazolidines and pyrazolines. A considerable number of asymmetric reactions proved the viability of metalcatalyzed [3+2] cycloadditions of azomethine imines for the synthesis of nonracemic cycloadducts. This review covers around 50 examples of title reactions that have been published since 2002.
Keywords
azomethine imines, pyrazolines, transition metals, catalysis, cyclization, [3+2] cycloadditions
Latvian Institute of Organic Synthesis - Aizkraukles iela, 21, Riga, LV-1006, Latvia - hgs@osi.lv