RSC Advances

A convenient 1, 3-dipolar cycloaddition–reduction synthetic sequence from 2-allyloxy-5-nitro-salicylaldehyde to aminobenzopyran-annulated heterocycles

NJ Parmar, BR Pansuriya, BM Labana, R Kant…

Index: Parmar, Narsidas J.; Pansuriya, Bhavesh R.; Labana, Balvantsingh M.; Kant, Rajni; Gupta, Vivek K. RSC Advances, 2013 , vol. 3, # 38 p. 17527 - 17539

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Citation Number: 6

Abstract

A microwave-assisted, one-pot synthesis of some nitro benzopyran-annulated pyrroles as well as pyrrolo-fused isoquinolines via a 1, 3-dipolar cycloaddition, which involves the in situ generation of azomethine ylide formed by reacting secondary amines with 2-allyloxy-5-nitro- salicylaldehyde, has been achieved in a solvent-free environment. Compared to methods of conventional and thermal heating, the present microwave-assisted method is rapid and ...

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