Modified method for the synthesis of isomeric N-substituted (1H-pyrazolyl)propane-1,3-diones |
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| Authors: | I. V. Taydakov S. S. Krasnoselsky |
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| Affiliation: | 1.G. S. Petrov Institute of Plastics,Moscow,Russia;2.People’s Friendship University of Russia,Moscow,Russia |
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| Abstract: | The condensation reaction of isomeric N-substituted (1H-pyrazol-4-yl)ethanones with the ethyl esters of pyrazole carboxylic acids and fluoroacetic acids has been studied using NaH as the base. Under optimized conditions, it proved to be a convenient and preparative method for the synthesis of N-substituted (1H-pyrazolyl)propane-1,3-diones and (1H-pyrazolyl)-4-polyfluorobutane-1,3-diones. |
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