Synthesis and oxidation of aromatic substituted 6,7-dihydropyrazolo[1,5-a]pyrimidines |
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Authors: | S. M. Desenko V. D. Orlov V. V. Lipson O. V. Shishkin K. A. Potekhin Yu. T. Struchkov |
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Affiliation: | (1) Kharkov State University, 310077 Kharkov;(2) A. N. Nesmeyanov Institute of Organoelemental Compounds, 117813 Moscow |
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Abstract: | Condensation of 5-amino-3-methylpyrazole with chalcone or dypnone gives aromatic substituted 6,7-dihydropyrazolo[1,5-a]pyrimidines which undergo air oxidation. An x-ray structure for 2-methyl-6-hydroxy-5,7-diphenyl-6,7-dihydropyrazolo[1,5-a]pyrimidine is reported.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 109–114, January, 1993. |
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