5-Phenyl-2-(pyrazol-4-yl)-1,3,4-thiadiazoles |
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Authors: | T V Shokol V V Semenyuchenko V P Khilya |
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Institution: | (1) Taras Shevchenko Kiev National University, Kiev, 01033, Ukraine |
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Abstract: | By recyclization of 2-R-6-ethyl-7-hydroxy(methoxy)-3-(5-phenyl-1,3,4-thiadiazol-2-yl)chromones when treated with hydrazine hydrate and phenylhydrazine, we synthesized 5-phenyl-2-(3-R-5-R1-1H-pyrazol-4-yl)-1H-1,3,4-thiadiazoles and 2-(3-R-5-R1-1-phenyl-1H-pyrazol-4-yl)-5-phenyl-1H-1,3,4-thiadiazoles. We confirmed the structure of the latter from 1H NMR spectra.__________Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 781–787, May, 2005. |
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Keywords: | pyrazoles thiadiazoles chromones |
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