B. M. Khutova, S. Klyuchko, A. Gurenko
Sep 10, 2013
Citations
0
Influential Citations
12
Citations
Journal
Chemistry of Heterocyclic Compounds
Abstract
The reaction of 7-phenyl-7H-pyrazolo[3,4-d][1,2,3]triazin-4-ol with thionyl chloride has been studied in the presence and absence of dimethyl formamide. It was found that heating the compound with thionyl chloride in the absence of dimethyl formamide gave 5-amino-1-phenyl-1H-pyrazole-4-carboxylic acid chloride and in its presence a mixture of 5-chloro-N-formyl-1-phenyl-1H-pyrazole-4-carboxamide, 5-chloro-1-phenyl-1H-pyrazole-4-carboxamide, and 4-chloro-6-(5-chloro-1-phenyl-1H-pyrazol-4-yl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine.