Synthesis of some pyrazole‐3‐carboxylic acid‐hydrazide and pyrazolopyridazine compounds |
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| Authors: | &#x;
zer &#x;lhan Emin Saripinar Yunus Akamur |
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| Institution: | İ Özer İlhan,Emin Saripinar,Yunus Akçamur |
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| Abstract: | Furan‐2,3‐diones 1a‐c react with various hydrazines 2a‐c under different conditions to yield the pyrazole‐3‐carboxylic acid‐hydrazide 3a‐d . Cyclocondensation reactions of 1a or 7 with phenylhydrazine lead to derivatives of pyrazolo3,4‐d]pyridazinones 6 and 8 , respectively. The structures of all products were confirmed by elemental analysis, IR, 1H‐ and 13C‐NMR spectroscopic measurements. |
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