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Synthesis of Substituted 1,8-Naphthyridine-3-carboxylates from Baylis–Hillman Adducts of Substituted 2-Chloronicotinaldehydes

✍ Scribed by Puli Narender; Mettu Ravinder; Partha Sarathi Sadhu; Bhimapaka China Raju; Chilukuri Ramesh; Vaidya Jayathirtha Rao

Publisher
John Wiley and Sons
Year
2009
Tongue
German
Weight
177 KB
Volume
92
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

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A series of substituted 1,8‐naphthyridine‐3‐carboxylates were synthesized for the first time from the Baylis–Hillman adducts obtained from 2‐chloronicotinaldehyde derivatives. Three methods were adopted to synthesize 1,8‐naphthyridine‐3‐carboxylates, of which the azide‐reduction route (Scheme 5) gave the best yields compared to the other attempted methods (Schemes 2 and 3).

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