The reaction between hydrazines and β-dicarbonyl compounds: proposal for a mechanism

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DC Field	Value	Language
dc.contributor.author	Kumar, Dalip	-
dc.date.accessioned	2021-10-27T04:23:34Z	-
dc.date.available	2021-10-27T04:23:34Z	-
dc.date.issued	2000-08	-
dc.identifier.uri	https://cdnsciencepub.com/doi/abs/10.1139/v00-104?journalCode=cjc	-
dc.identifier.uri	http://dspace.bits-pilani.ac.in:8080/xmlui/handle/123456789/3093	-
dc.description.abstract	The reaction between aryl or heteroarylhydrazines with fluorinated β-diketones (CF3COCH2COR) yields a variety of 3-, 5-, and 3,5-trifluoromethylpyrazoles and 5-trifluoromethyl-5-hydroxy-Δ2-pyrazolines. Twenty-one of such compounds have been isolated and identified by 13C and 19F NMR. Together with the results from the literature they provide a comprehensive overview of the reaction. Semi-empirical calculations at the PM3 level have been used to rationalize these results. The outcome that emerges seems to be that the dehydration of a pair of 3,5-dihydroxypyrazolidines kinetically controls the isomer formed.Key words: hydrazines, 1,3-diketones, pyrazolines, pyrazoles, PM3 calculations.	en_US
dc.language.iso	en	en_US
dc.publisher	CSP	en_US
dc.subject	Chemistry	en_US
dc.subject	Hydrazines	en_US
dc.subject	β-dicarbonyl compounds	en_US
dc.title	The reaction between hydrazines and β-dicarbonyl compounds: proposal for a mechanism	en_US
dc.type	Article	en_US
Appears in Collections:	Department of Chemistry

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