87839-61-0

Basic information

• Product Name: methyl 1-phenyl-2-pyrazoline-5-carboxylate
• CAS NO: 87839-61-0
• Molecular Weight: 204.228
• Mol File: 87839-61-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: methyl 1-phenyl-2-pyrazoline-5-carboxylate(CAS DataBase Reference)
• NIST Chemistry Reference: methyl 1-phenyl-2-pyrazoline-5-carboxylate(87839-61-0)
• EPA Substance Registry System: methyl 1-phenyl-2-pyrazoline-5-carboxylate(87839-61-0)

Safety Data

• Hazardous Substances Data: 87839-61-0(Hazardous Substances Data)

Upstream product

• 622-11-7 α-nitroformaldehyde phenylhydrazone 
• 292638-85-8 acrylic acid methyl ester 
• 56476-95-0 2-phenyl-2H-tetrazole 

Downstream Products

• 55115-07-6 1-Phenylpyrazol-5-carbonsaeure-methylester 
• 87839-60-9 2-Anilino-3-cyanpropionsaeure-methylester 

Relevant articles and documents

1,3-Dipolar Cycloadditions, 87. Contributions to the Chemistry of N-Phenylnitrilimine

The N-phenyl derivative 7 is introduced as the first monosubstituted and interceptible nitrilimine whereas the cycloadditions of disubstituted representatives have been preparatively utilized in the past.Photolysis of 2-phenyltetrazole in the presence of methyl acrylate gives rise to methyl 1-phenyl-2-pyrazoline-5-carboxylate which on further irradiation suffers ring cleavage.The sodium salt of α-nitroformaldehyde phenylhydrazone (15) eliminates NaNO2 in refluxing acetonitrile whereby the intermediate 7 is accepted in situ by acrylic ester, styrene and norbornene.The interaction of methyl acrylate with the anionic precursor 15 furnishes further products.The formal dimer of 7, the 1,4-diphenyl-1,4-dihydro-1,2,4,5-tetrazine, is probably formed by reaction of 7 with 15.