87343-65-5

Usage

InChI:InChI=1/C9H10N2O2/c1-5-4-7(12)13-9-8(5)6(2)11(3)10-9/h4H,1-3H3

Upstream product

• 5203-98-5 3,4-dimethyl-1H-pyrano[2,3-c]pyrazol-6-one 
• 74-88-4 methyl iodide 
• 3201-28-3 1,5-dimethyl-1,2-dihydro-3-pyrazolone 
• 626-34-6 ethyl aminocrotonate 
• 141-97-9 ethyl acetoacetate 

Relevant academic research and scientific papers

Studies on heterocyclic compounds. 6. Synthesis and analgesic and antiinflammatory activities of 3,4-dimethylpyrano[2,3-c]pyrazol-6-one derivatives

A series of new 1- and 2-substituted 3,4-dimethylpyrano[2,3-c]pyrazol-6-one derivatives and 1-substituted 1,6 dihydro-4-methyl-6-oxopyrano[2,3-c]pyrazole-3-acetic acids were synthesized and examined for their analgesic and antiinflammatory activities. Mos

ETUDE COMPARATIVE DE LA REACTIVITE DE L'ACETOACETATE D'ETHYLE ET DU 3-AMINOCROTONATE D'ETHYLE VIS-A-VIS DE COMPOSES PYRAZOLONIQUES

1-phenyl-3-methylpyrazolin-5-one, 1,5-dimethylpyrazolin-3-one and 1-phenyl-pyrazolidin-3,5-dione react with ethyl acetoacetate to yield pyrano pyrazole-6-ones.Starting from 1-phenyl-3-aminopyrazolin-5-one or from 1-methyl-5-aminopyrazolin-3-one, pyrazolo pyridin-6-ones are obtained.When ethyl 3-aminocrotonate instead of ethyl acetoacetate is used, the course of these reactions remains the same in most cases but yields are always higher.