E. Korkusuz, İ. Yıldırım
Dec 15, 2010
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0
Influential Citations
7
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Journal
Turkish Journal of Chemistry
Abstract
The 1H -pyrazole-3-carboxylic acid 2 was converted via reactions of its acid chloride 3 with various hydroxylamine 4a-f and carbazate derivatives 8a-c into the corresponding novel N -substituted-4-benzoyl- 1,5-dipenyl-1 H -pyrazole-3-carboxamides 5a-c, N, N-disubstituted-4-benzoyl-1,5-diphenyl-1 H -pyrazole-3- carboxylates 6d,e ,4 -benzoyl-N -{((4-benzoyl-1,5-diphenyl-1 H -pyrazol-3-yl)carbonyl)oxy}- N -methyl-1,5dip- henyl-1 H -pyrazole-3-carboxamide (7), and 4-benzoyl- N � -(alkoxycarbonyl)-1,5-diphenyl-1H -pyrazole-3-car- bohydrazides 9a,b and 10, respectively, in good yields (65%-90%). The reactions of 3 with 4 and 8 in xylene for 8-15 h with catalytic amounts of base led to the formation of the products 5-7, 9 ,a nd10. The structures of all new synthesized compounds were established by the 13 C-NMR, 1 H-NMR, IR spectroscopic data, and elemental analyses.