Background
Type: Article

Silica sulfuric acid as a solid acid catalyzed synthesis of 4,5,6,7-Tetrahydro-2h-pyrazolo[3,4-b]pyridine-5-carbonitriles and 1,4-diaryl-4,5-dihydro-3-methyl-1h-pyrazolo [3,4-b]pyridine-6(7h)-ones

Journal: Revue Roumaine de Chimie (00353930)Year: 2015/11/01Volume: 60Issue: 11-12Pages: 1025 - 1032
Mahdavinia G.H.Rahmati A.a
Language: English

Abstract

4-Aryl-3-methyl-6-oxo-4,5,6,7-Tetrahydro-2H-pyrazolo[3,4-b]pyridine-5-carbonitriles in good to high yields at reflux conditions in presence and absence of silica sulfuric acid catalyst using an one-pot, threecomponent condensation reaction were synthesized. Then synthesis of 1,4-diaryl-4,5-dihydro-3-methyl-1H-pyrazolo[3,4-b]pyridin-6(7H)-ones with silica sulfuric acid as a solid acid catalyst in acetonitrile has been described.


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