%0 Journal Article
%T Synthesis of new trifluoromethyl-containing 1-(3,5-dialkyl-4-hydroxybenzyl)-pyrazole and -pyrazol-5-one deriatives and their corresponding aroxyls
%A VASILE DINOIU
%A JIAN-MING L¨¹
%J Journal of the Serbian Chemical Society
%D 2006
%I Serbian Chemical Society
%X 3,5-Dialkyl-4-hydroxybenzylhydrazine 1 reacted with hexafluoroacetylacetone, and trifluoroacetylacetone yielding the pyrazoles 2 bearing trifluoromethyl and/or methyl substituents in positions 3 and 5. The same hydrazine derivatives 1 afforded the pyrazol-5-ones 3 with trifluoroacetoacetic acid ethyl ester. On oxidation with lead tetraacetate in CH2Cl2, some stable aroxyls were obtained and their ESR spectra are described.
%K fluorination
%K pyrazole
%K pyrazolone
%K trifluoromethyl-1
%K 3-diketones
%U http://www.shd.org.yu/HtDocs/SHD/Vol71/No4/JSCS_V71_No4-01.pdf