35280-08-1Relevant academic research and scientific papers
Synthesis and characterization of new thiadiazole derivatives bearing a pyrazole moiety
Sa?mac?, Mustafa,Arslaner, ?iler,?ahin, Ertan
, p. 1134 - 1139 (2017/09/06)
A series of thidiazole derivatives (4, 7) from pyrazole-3-carboxylic acid chloride (2) and pyrazole-3,4- dicarboxylic acid chloride derivatives (6) were synthesized and characterized. The structures of the new compounds were confirmed byelemental analysis
Synthesis and characterization of some pyrazole derivatives of 1,5-diphenyl-1H-pyrazole-3,4-dicarboxylic acid
Kasimogullari, Rahmi,Arslan, B. Seckin
experimental part, p. 1040 - 1048 (2010/10/21)
(Chemical Equation Presented) Compound of 4-(ethoxycarbonyl)-1,5-diphenyl- 1H-pyrazole-3-carboxylic acid 2 was obtained from the reaction of ethyl 4,5-dioxo-2-phenyl-4,5-dihydrofuran-3-carboxylate and 1-benzylidene-2- phenylhydrazine. A number of substitute pyrazole dicarboxylic acid derivatives (4, 5a-c, 6, 7, 8, 9a-m, 10, 11, 12, 13, 14) were synthesized from 1,5-diphenyl-1H-pyrazole-3,4-dicarboxylic acid 3 which was prepared from basic hydrolysis of 2. Structures of synthesized compounds were characterized by 1H NMR, 13C NMR, Mass, FTIR, and elemental analysis.
REACTION OF D-GALACTOSE PHENYLHYDRAZONE WITH NITROALKENES:SYNTHESIS OF PENTAHYDROXYPENTYLPYRAZOLES
Guillen, Manuel Gomez,Jiminez, Juan L. Conde
, p. 1 - 18 (2007/10/02)
D-Galactose phenylhydrazone reacts with 1- and 2-substituted and 1,2-disubstituted nitroalkenes, with loss of the nitro group, to give moderate yields of 3-(D-galacto-pentitol-1-yl)-1-phenylpyrazoles variously substituted at positins 4, 5 and a mechanism is proposed.Acetylation of these products affords pentaacetates and periodate oxidation gave the corresponding 1-phenylpyrazole-3-carbaldehyde derivatives, some of which were oxidised to the carboxylic acids.U.v., i.r., and n.m.r. data confirm the proposed structures.
