THE REACTION OF 1,1,1,5,5,5-HEXAFLUOROPENTANE-2,4-DIONE WITH HYDRAZINES - A REINVESTIGATION

被引:34
|
作者
THREADGILL, MD
HEER, AK
JONES, BG
机构
[1] School of Pharmacy and Pharmacology, University of Bath, Bath, BA2 7AY, Claverton Down
关键词
D O I
10.1016/S0022-1139(00)80467-4
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The reaction of 1,1,1,5,5,5-hexafluoropentane-2,4-dione with hydrazine (N2H4) in boiling ethanol gives 3,5-bis(trifluoromethyl)pyrazole but reaction with N-aryl or N-aroyl hydrazines gives the 1-aryl- or 1-aroyl-3,5-bis(trifluoromethyl)-4,5-dihydro-5-hydroxypyrazoles, as shown by NMR and mass spectra, in contrast to a previous report.
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页码:21 / 23
页数:3
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