C-acylation of heterocyclic keto-enols Communication 10. Cyclization of 3-acyl-4-hydroxy-6-methyl-2(1H)-pyridone phenylhydrazones and their 1-methyl and 1-phenyl derivatives |
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| Authors: | N S Vul'fson G M Sukhotina |
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| Institution: | (1) Institute of Chemistry of Natural Products, Academy of Sciences of the USSR, USSR;(2) Research Institute for Intermediates and Dyes, USSR |
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| Abstract: | Conclusions The cyclization of 3-acyl-4-hydroxy-6-methyl-2 (1H)-pyridone phenyl hydrazones and their 1-methyl and 1-phenyl derivatives goes by reaction at the 4-position of the pyridone ring with formation of the corresponding 1H-pyrazolo4,3-c]pyridin-4(5H)-one derivatives.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya No. 10, pp. 1785–1788, October, 1966. |
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