87646-38-6

Upstream product

• 83-07-8 4-amino-2,3-dimethyl-1-phenylpyrazolin-5-one 
• 141-97-9 ethyl acetoacetate 

Downstream Products

• 79067-22-4 1,5-dimethyl-4-[2-(3-methyl-5-oxo-1-phenyl-1,5-dihydro-4Hpyrazol-4-ylidene)hydrazinyl]-2-phenyl-1,2-dihydro-3H-pyrazol-3-one 
• 87633-22-5 4-{N'-[1-Benzenesulfonyl-3-methyl-5-oxo-1,5-dihydro-pyrazol-(4Z)-ylidene]-hydrazino}-1,5-dimethyl-2-phenyl-1,2-dihydro-pyrazol-3-one 
• 87633-21-4 3-Methyl-2-pyrazoline-4,5-dione-4-(4-antipyrinylhydrazone) 
• 82315-79-5 3a,4-Dimethyl-6-oxo-5-phenyl-3a,4,5,6-tetrahydro-pyrazolo[4,5-c]pyrazole-3-carboxylic acid ethyl ester 
• 87646-39-7 Benzenesulfonic acid 2-benzenesulfonyl-4-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-ylazo)-5-methyl-2H-pyrazol-3-yl ester 
• 1346240-81-0 4-antipyrinylazo-3-methyl-5-hydroxypyrazole-1-carbothioic acid amide 

Relevant academic research and scientific papers

Studies on Condensed Pyrazoles A New Route for Synthesis of Pyrazolopyrazoles

A novel synthesis of pyrazolopyrazoles via 1,5-dipolar cyclization of products of coupling of 2,3-dimethyl-1-phenyl-5-oxo-3-pyrazolin-4-diazonium chloride with active methylene reagents is reported. - Keywords: Heterocyclic Synthesis, Activated Nit

Synthesis of 4-, 5- and 3-(4-Antipyrinylhydrazones) of Pyrazolinones, Pyrazolone, Pyrimidone and 1,5-Benzodiazepinone

1-Substituted 3-methyl-2-pyrazoline-4,5-dione-4-(4-antipyrinylhydrazones) (III), 3-anilino-5-methyl-4(H)-pyrazolone-4-(4-antipyrinylhydrazone) (IX), 6-anilino-2,5-dihydro-4-methyl-2-thiono-5-pyrimidone-5-(4-antipyrinylhydrazone) (X) and 4-anilino-2-methyl