Pseudo-five-component domino strategy for the combinatorial library synthesis of [1,6] naphthyridines-an on-water approach.

Paramita Das, Tandrima Chaudhuri, Chhanda Mukhopadhyay

Index: ACS Comb. Sci. , (2014)

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Abstract

This work features the base-promoted on-water synthesis of [1,6]-naphthyridines from methyl ketones, malononitrile and phenols or thiols. The reaction conditions were carefully tuned to drive the product selectivity from 3H-pyrroles to [1,6]-naphthyridines. The advantages of this method lie in its simplicity, cost effectiveness, and environmental friendliness, representing a new effort toward the on-water synthesis of [1,6]-naphthyridines without starting from a nitrogen-containing heterocycle and highlighting the versatility of the nitrile functional group.