✦ LIBER ✦

A simple and efficient preparation of pyrazolo[3,4-b]-pyridine derivatives through an unexpected reaction of cyanothioacetamide under microwave irradiation

✍ Scribed by Xuesen Fan; Xia Wang; Xinying Zhang; Xiaoyan Li; Guirong Qu

Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 166 KB
Volume: 19
Category: Article
ISSN: 1042-7163
DOI: 10.1002/hc.20497

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✦ Synopsis

Abstract

An unexpected multicomponent reaction of cyanothioacetamide with aromatic aldehydes and aminopyrazole under MWI was found and reported. It turned out to be an efficient and simple procedure for the preparation of pyrazolo[3,4‐b]pyridine derivatives. The structure of the product was characterized by IR, MS, ^1^H and ^13^C NMR, COSY and NOESY spectroscopy, X‐ray crystallographic analysis, and by comparison with the authentic sample prepared with the known procedure. © 2008 Wiley Periodicals, Inc. Heteroatom Chem 19:694–699, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20497

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