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Three-component one-pot synthesis of pyrazolo[3,4-b]quinolin-5(6H)-one derivatives in aqueous media

✍ Scribed by Hui-Yan Wang; Da-Qing Shi

Publisher
Journal of Heterocyclic Chemistry
Year
2011
Tongue
English
Weight
174 KB
Volume
49
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

A series of 4‐aryl‐3,7,7‐trimethyl‐1‐phenyl‐7,8‐dihydro‐1__H__‐pyrazolo[3,4‐b]quinolin‐ 5(6__H__)‐ones were synthesized by the three‐component reaction of aromatic aldehydes, 3‐methyl‐1‐phenyl‐1__H__‐pyrazol‐5‐amine, and 5,5‐dimethyl‐1,3‐cyclohexandione in the presence of sodium 1‐dodecanesulfonate in aqueous medium. Compared to the previous methods, this new protocol has the advantages of convenient operation, higher yields, lower cost, and environmentally benign procedure. J. Heterocyclic Chem., (2012).

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