Sener, A.Kasimogullari, R.Sener, M.K.Genc, H.2025-05-102025-05-1020040009-312210.1023/B:COHC.0000046695.00178.792-s2.0-7744223467https://doi.org/10.1023/B:COHC.0000046695.00178.79https://hdl.handle.net/20.500.14720/63894-Benzoyl-1-(4-nitrophenyl)-5-phenyl-1H-pyrazole-3-carboxylic acid, obtained from the corresponding furan-2,3-dione and N-benzylidene-N'-(4- nitrophenyl)hydrazine, was converted via reactions of its acid chloride with various alcohols or N-nucleophiles into the corresponding ester or amide derivatives. The nitrile of the starting acid and 1-(4-aminophenyl)-4-benzoyl-5- phenyl-1H-pyrazole-3-carboxylic acid were also obtained. While cyclocondensation reactions of the two acids and the nitrile mentioned with hydrazines lead to pyrazolo[3,4-d]pyridazine derivatives, the reaction of starting acid with 2-hydrazinopyridine provided the hydrazonopyrazole acid derivative.eninfo:eu-repo/semantics/closedAccessCyclic Oxalyl Compounds,PyrazolePyrazolopyridazineQuinolineArticle408Q3Q310391046