55294-29-6

Basic information

• Product Name: 5-Methyl-2-(1-phenyl-ethyl)-2,4-dihydro-pyrazol-3-one
• CAS NO: 55294-29-6
• Molecular Weight: 202.256
• Mol File: 55294-29-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 5-Methyl-2-(1-phenyl-ethyl)-2,4-dihydro-pyrazol-3-one(CAS DataBase Reference)
• NIST Chemistry Reference: 5-Methyl-2-(1-phenyl-ethyl)-2,4-dihydro-pyrazol-3-one(55294-29-6)
• EPA Substance Registry System: 5-Methyl-2-(1-phenyl-ethyl)-2,4-dihydro-pyrazol-3-one(55294-29-6)

Safety Data

• Hazardous Substances Data: 55294-29-6(Hazardous Substances Data)

Upstream product

• 1694-31-1 tert-butyl acetoacetate 
• 24292-42-0 (1-phenyl-ethyl)-hydrazine 

Relevant articles and documents

Solid-phase synthesis of substituted pyrazolones from polymer-bound β-keto esters

Polymer-bound acetoacetate 3 was γ-mono- and γ-dialkylated, as well as α-monoalkylated, to give 6, 9, and 13, respectively. Treatment with hydrazine or substituted hydrazines followed by thermal or acidic cyclizing cleavage yielded the pyrazolones 17a-dd in a purity of >90%.