Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1270160 | Ultrasonics Sonochemistry | 2012 | 7 Pages |
Abstract
A simple, facile, efficient and three-components procedure for the synthesis of pyrimido[1,2-a]benzimidazoles and pyrazolo[3,4-b]pyridines utilizing phenylsulfone synthon, under ultrasonic irradiation was developed.
► Ultrasound assisted three-components condensation reaction of an aldehyde, amino azoles and β-ketosulfone. ► The obtained products are pyrimido[1,2-a]benzimidazoles and pyrazolo[3,4-b]pyridines. ► p-TsOH catalyze synthesis of pyrazolo[3,4-b]pyridines. ► Improvements in rates and yield of reactions are observed when reactions were carried out under sonication compared with classical condition.
Keywords
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Physical Sciences and Engineering
Chemistry
Chemistry (General)
Authors
Tamer S. Saleh, Taha M.A. Eldebss, Hassan M. Albishri,