A. O. Kharaneko, T. M. Pekhtereva, O. I. Kharaneko
Apr 1, 2020
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Influential Citations
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Journal
Russian Journal of Organic Chemistry
Abstract
A modified procedure has been proposed for the synthesis of 2,7-diphenyl-5,8-dihydro-4H-pyrazolo[5,1-d][1,2,5]triazepin-4-one, and the possibility of transformation of the latter to the pyrazolo[1,5-a]pyrazine system has been demonstrated. Functionalization of 2,7-diphenyl-5,8-dihydro-4H-pyrazolo[5,1-d][1,2,5]triazepin-4-one at the 4-position and fusion of a tetrazole or triazole ring at the C4–N5 bond have been performed.