Synthesis of some pyrazole-3-carboxylic acid-hydrazide and pyrazolopyridazine compounds


ILHAN I., Saripinar E. , AKCAMUR Y.

JOURNAL OF HETEROCYCLIC CHEMISTRY, cilt.42, ss.117-120, 2005 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 42 Konu: 1
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1002/jhet.5570420117
  • Dergi Adı: JOURNAL OF HETEROCYCLIC CHEMISTRY
  • Sayfa Sayıları: ss.117-120

Özet

Furan-2,3-diones la-c react with various hydrazines 2a-c under different conditions to yield the pyrazole-3-carboxylic acid-hydrazide 3a-d. Cyclocondensation reactions of la or 7 with phenylhydrazine lead to derivatives of pyrazolo[3,4-d]pyridazinones 6 and 8, respectively. The structures of all products were confirmed by elemental analysis, IR, H-1- and C-13-NMR spectroscopic measurements.