74840-04-3

Basic information

• Product Name: 3-benzyl-1,4-diphenyl-2-pyrazolin-5-one
• CAS NO: 74840-04-3
• Molecular Weight: 326.398
• Mol File: 74840-04-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 3-benzyl-1,4-diphenyl-2-pyrazolin-5-one(CAS DataBase Reference)
• NIST Chemistry Reference: 3-benzyl-1,4-diphenyl-2-pyrazolin-5-one(74840-04-3)
• EPA Substance Registry System: 3-benzyl-1,4-diphenyl-2-pyrazolin-5-one(74840-04-3)

Safety Data

• Hazardous Substances Data: 74840-04-3(Hazardous Substances Data)

Upstream product

• 101-97-3 Ethyl 2-phenylethanoate 
• 103-82-2 phenylacetic acid 
• 72358-76-0 phenylhydrazine acetate 
• 1788-30-3 phenylhydrazone of dibenzyl ketone 
• 105-58-8 Diethyl carbonate 
• 100-63-0 phenylhydrazine 
• 2901-29-3 ethyl 2,4-diphenyl-3-oxobutanoate 

Relevant articles and documents

A New Synthesis of 2-Pyrazolin-5-ones from the Condensation of C(α),N-Dilithiophenylhydrazones with Diethyl Carbonate

C(α),N-Dilithiophenylhydrazones were prepared from phenylhydrazones in an excess of lithium diisopropylamide and condensed with diethyl carbonate followed dy an acid cyclization to give 2-pyrazolin-5-ones.