Heteroatom Chemistry

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

X Fan, X Wang, X Zhang, X Li, G Qu

Index: Fan, Xuesen; Wang, Xia; Zhang, Xinying; Li, Xiaoyan; Qu, Guirong Heteroatom Chemistry, 2008 , vol. 19, # 7 p. 694 - 699

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Citation Number: 4

Abstract

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 ...