113502-39-9

Basic information

• Product Name: Ethanone, 1-(3-methyl-1-phenyl-1H-pyrazol-4-yl)-, phenylhydrazone
• CAS NO: 113502-39-9
• Molecular Formula: C18H18N4
• Molecular Weight: 290.368
• Mol File: 113502-39-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Ethanone, 1-(3-methyl-1-phenyl-1H-pyrazol-4-yl)-, phenylhydrazone(CAS DataBase Reference)
• NIST Chemistry Reference: Ethanone, 1-(3-methyl-1-phenyl-1H-pyrazol-4-yl)-, phenylhydrazone(113502-39-9)
• EPA Substance Registry System: Ethanone, 1-(3-methyl-1-phenyl-1H-pyrazol-4-yl)-, phenylhydrazone(113502-39-9)

Safety Data

• Hazardous Substances Data: 113502-39-9(Hazardous Substances Data)

Upstream product

• 55933-85-2 acetyl-5 dimethyl-2,4 pyrimidine 
• 66373-27-1 acetyl-5 methyl-4 phenyl-2 pyrimidine 
• 66373-26-0 1-(4-methyl-2-methylsulfanylpyrimidin-5-yl)ethanone 
• 100-63-0 phenylhydrazine 
• 87379-42-8 5-acetyl-4-methylpyrimidine 
• 33884-41-2 ethoxylideneacetylacetone 
• 66373-25-9 acetyl-5 amino-2 methyl-4 pyrimidine 
• 105223-85-6 acetyl-4 methyl-3 phenyl-1 pyrazole 

Relevant articles and documents

Synthese regiospecifique d'acyl-4 pyrazoles a partir d'acyl-5 pyrimidines

The transformation of variously substituted 5-acetyl-4-methylpyrimidines 1 into 4-acetyl-1-amidino-3-methylpyrazole amidinohydrazone dihydrochloride 3, under the action of amidinohydrazine hydrochloride, in boiling acidic methanolic solution, depends on the nature of the 2-substituent of pyrimidines 1, and on the stability of the amidinohydrazone of pyrimidines 2 under the reaction conditions.Phenylhydrazine transforms all the pyrimidines 1 into pyrazoles, regiospecifically or not, according to the nature of the 2-substituent of pyrimidines 1.This new possibility of ring contraction has been extended to other unsymetrical 5-acyl- and 5-ethoxycarbonylpyrimidines.