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Molbank 2003, 2003(1), M305;


Department of Chemistry, Faculty of Science, United Arab Emirates University, P.O.Box 17551 Al-Ain, UAE
Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
Author to whom correspondence should be addressed.
Received: 16 June 2002 / Accepted: 30 September 2002 / Published: 11 March 2003
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Note: In lieu of an abstract, this is an excerpt from the first page.


To a cold solution of 5-trifluoromethyl-2,4-dihydropyrazol-3-one [1,2] (0.76 g, 5 mmol) in ethanol (25 ml) containing sodium acetate (0.82 g, 10 mol), p-tolyldiazonium chloride [ca. 5 mmol; prepared by adding a solution of sodium nitrite (5 mmol / 2 ml H2O) to an ice cold solution of p-toluidine in 2 ml conc. HCl] was added dropwise with stirring at 0-5°C.[...] View Full-Text
Keywords: Trifluoromethyl, Dihydropyrazol-3-one, Tolyldiazonium chloride Trifluoromethyl, Dihydropyrazol-3-one, Tolyldiazonium chloride
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Zohdi, H.F.; Rateb, N.M. 4-p-Tolylazo-5-trifluoromethyl-2,4-dihydropyrazol-3-one. Molbank 2003, 2003, M305.

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