Abstract
Methyl 1-aryl-3-aroyl-4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates reacted with 3-methyl-4-phenyl-1H-pyrazol-5-amine to give methyl 7-arylcarbamoyl-6-aroyl-2-methyl-3-phenylpyrazolo[1,5-a]-pyrimidine-5-carboxylates. The molecular and crystalline structures of methyl 6-benzoyl-7-(4-chlorophenylcarbamoyl)-2-methyl-3-phenylpyrazolo[1,5-a]pyrimidine-5-carboxylate were studied by X-ray analysis.
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Original Russian Text © E.S. Denislamova, N.V. Bubnov, Z.G. Aliev, A.N. Maslivets, 2011, published in Zhurnal Organicheskoi Khimii, 2011, Vol. 47, No. 9, pp. 1341–1344.
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Denislamova, E.S., Bubnov, N.V., Aliev, Z.G. et al. Five-membered 2,3-dioxo heterocycles: LXXX. Recyclization of 1H-pyrrole-2,3-diones into pyrazolo[1,5-a]pyrimidines by the action of pyrazolamine. Crystalline and molecular structure of substituted pyrazolo[1,5-a]pyrimidine. Russ J Org Chem 47, 1362–1365 (2011). https://doi.org/10.1134/S107042801109017X
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DOI: https://doi.org/10.1134/S107042801109017X