Pyrimidines - XLIII. 3,5-diaminopyrazole in the synthesis of pyrazolo[3,4-d]pyrimidines

Pyrimidines - XLIII. 3,5-diaminopyrazole in the synthesis of pyrazolo[3,4-d]pyrimidines Full article

Journal

Chemistry of Heterocyclic Compounds
ISSN: 0009-3122 , E-ISSN: 1573-8353

Output data

Year: 1976, Volume: 10, Number: 10, Pages: 1248-1250 Pages count : 3 DOI: 10.1007/BF00470175

Authors

Mikhaleva M.A. ¹ , Il'chenko L.N. ¹ , Mamaev V.P. ¹

Affiliations

1	(Scopus) Novosibirsk Institute of Organic Chemistry, Siberian Branch, Academy of Sciences of the USSR, Russia

In the condensation of benzalbisurea with 1-methyl-3,5-diaminopyrazole the pyrimidine ring closes through the amino group of pyrazole in the 5 position to give 1-methyl-4-phenyl-3-benzalamino-6-oxo-4,5,6,7-tetrahydropyrazolo[3,4-d]pyrimidine. The latter is converted to 1-methyl-4-phenyl-3-amino-6-oxo-6,7-dihydropyrazolo [3,4-d]pyrimidine by dehydrogenation and subsequent hydrolysis of the benzylidene group. © 1976 Plenum Publishing Corporation.

Mikhaleva M.A. , Il'chenko L.N. , Mamaev V.P.
Pyrimidines - XLIII. 3,5-diaminopyrazole in the synthesis of pyrazolo[3,4-d]pyrimidines
Chemistry of Heterocyclic Compounds. 1976. V.10. N10. P.1248-1250. DOI: 10.1007/BF00470175 Scopus РИНЦ OpenAlex

Published print:

Oct 1, 1974

Scopus:	2-s2.0-34250392067
Elibrary:	30844378
OpenAlex:	W2315556914

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