Liu Xin, W. Shi, S. Bao
2006
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Journal
Chinese Journal of Applied Chemistry
Abstract
4-(2-Hydroxy-phenyl)-but-3-en-2-one was prepared via condensation of salicylaldehyde with(acetone),and then cyclization of the α,β-unsaturated ketones with thiosemicarbzide.Seven new 5-(2-hydroxyphenyl)-3-methyl-4,5-dihydropyrazole-1-carbothioamide derivatives were synthesized and characterized by means of elemental analysis,IR and ~(1)H NMR.The compounds 3c,3d,3g showed certain bactericidal activity against E.coli;compound 3g show certain bactericidal activity against P.vulgaris.