✦ LIBER ✦

Design and synthesis of new and significative bifunctional compounds containing two pyrazolo[3,4-b]pyridine nucleis through multicomponent reaction under microwave irradiation

✍ Scribed by Shujiang Tu; Qian Wang; Yan Zhang; Jianing Xu; Jinpeng Zhang; Xiaotong Zhu; Feng Shi

Publisher: Journal of Heterocyclic Chemistry
Year: 2007
Tongue: English
Weight: 298 KB
Volume: 44
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570440409

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✦ Synopsis

Abstract

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A series of new and significative bifunctional compounds containing two pyrazolo[3,4‐b]pyridine moieties has been synthesized through a rapid one‐pot three‐component reaction of dialdehyde, 5‐amino‐3‐methyl‐1‐phenylpyrazole and active methylene compounds in glycol under microwave irradiation without catalyst. The method has the advantages of good yield (85‐98%), short route and reaction time (45‐300s), wide reaction scope and easy work‐up procedure.

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