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Regioselective multi-component synthesis of 1H-pyrazolo[3,4-d]pyrimidine- 6(7H)-thiones

Molecular Diversity, ISSN: 1381-1991, Vol: 16, Issue: 3, Page: 591-600
2012
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Article Description

A variety of pyrazolo[3,4-d]pyrimidine-6(7H)-thione derivatives were easily synthesized with a novel, simple, efficient, and regioselective method via three-component condensation reaction of 5-methyl-1H-pyrazol-3-amine, arylisothiocyanates, and aldehydes in the presence of catalytic amount of p-toluenesulfonic acid (p-TSA) in 1-butyl-3-methylimidazolium bromide ionic liquidwith excellent yields and short reaction times. © Springer Science+Business Media B.V. 2012.

Bibliographic Details

Safaei, Shirin; Mohammadpoor-Baltork, Iraj; Khosropour, Ahmad Reza; Moghadam, Majid; Tangestaninejad, Shahram; Mirkhani, Valiollah

Springer Science and Business Media LLC

Chemical Engineering; Computer Science; Biochemistry, Genetics and Molecular Biology; Pharmacology, Toxicology and Pharmaceutics; Chemistry

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