Sener, ABildirici, I2025-05-102025-05-1020041300-05271303-61302-s2.0-2542551056https://search.trdizin.gov.tr/en/yayin/detay/1211/synthesis-and-some-reactions-of-4-benzoyl-5-phenyl-1-246-trichloro-phnyl-1h-pyrazole-3-carboxylic-acidhttps://hdl.handle.net/20.500.14720/20433Bildirici, Ishak/0000-0001-8590-3070Furandione I was reacted with 2,4,6-trichlorophenylhydrazine to give the 1H-pyrazole-3-carboxylic acid 2 together with a new pyridazinone derivative 3. Then 2 was converted into the corresponding ester 5 or amide 6 derivatives, respectively, via reactions of its acid chloride 4 with various alcohols or N-nucleophiles. Nitrile derivative 7 was obtained by dehydration of 6a in a mixture of SOCl2 and DMF. Condensation reactions of 2 with some hydrazines led to the formation of pyrazolo [3,4-d] pyridazinone 8 derivatives.eninfo:eu-repo/semantics/closedAccessCyclic Oxalyl CompoundsPyrazolePyridazinePyrazolo [3,4-D] PyridazinoneArticle282Q4Q31491561211WOS:000221463200002