Organic letters

Synthesis of Imidazopyridines from the Morita–Baylis–Hillman Acetates of Nitroalkenes and Convenient Access to Alpidem and Zolpidem

DK Nair, SM Mobin, INN Namboothiri

Index: Nair, Divya K.; Mobin, Shaikh M.; Namboothiri, Irishi N.N. Organic Letters, 2012 , vol. 14, # 17 p. 4580 - 4583

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Citation Number: 81

Abstract

A variety of functionalized imidazo [1, 2-a] pyridines have been synthesized through a one- pot, room temperature, and reagent-free reaction between MBH acetates of nitroalkenes and 2-aminopyridines. The reaction involves a cascade inter-intramolecular double aza-Michael addition of 2-aminopyridines to MBH acetates. Our methodology is marked by excellent yield, regioselectivity and, above all, adaptability to synthesize imidazopyridine-based ...