STUDIES ON REACTIONS OF CYCLIC OXALYL COMPOUNDS WITH HYDRAZINES OR HYDRAZONES. 2. SYNTHESIS AND REACTIONS OF 4-BENZOYL-1-(4-NITROPHENYL)-5-PHENYL-1H-PYRAZOLE-3-CARBOXYLIC ACID

Authors

  • A. Şener Yüzüncü Yil Üniversity, Art and Science Faculty, Chemistry Department, 65080 Van
  • R. Kasimoğullari Atatürk Üniversity, Art and Science Faculty, Chemistry Department, Erzurum
  • M. K. Şener Yüzüncü Yil Üniversity, Art and Science Faculty, Chemistry Department, 65080 Van
  • H. Genç Yüzüncü Yil Üniversity, Art and Science Faculty, Chemistry Department, 65080 Van

Keywords:

cyclic oxalyl compounds, pyrazole, pyrazolopyridazine, quinoline

Abstract

4-Benzoyl-1-(4-nitrophenyl)-5-phenyl-1H-pyrazole-3-carboxylic acid, obtained from corres-ponding furan-2,3-dione and N-benzylidene-N'-(4-nitrophenyl)hydrazine, was converted via reac-tions of its acid chloride with various alcohols or N-nucleophiles into the corresponding ester or amide derivatives. Nitrile of the starting acid 1-(4-aminophenyl)-4-benzoyl-5-phenyl-1H-pyrazo-le-3-carboxylic acid was also obtained. While cyclocondensation reactions of two acids and nitrile mentioned hydrazines lead to pyrazolo[3,4-d]pyridazine derivatives, the reaction of starting acid with 2-hydrazino-pyridine provided hydrazono-pyrazole acid derivative.

Как ссылаться
Şener, A.; Kasimoğullari, R.; Şener, M. K.; Genç, H. Chem. Heterocycl. Compd. 2004, 40, 1039. [Химия гетероцикл. соединений 2004, 1201.]

Статья в английском издании журнала: DOI 10.1023/B:COHC.0000046695.00178.79

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Published

2004-08-25

Issue

No. 8 (2004)

Section

Original Papers