296759-69-8

Basic information

• Product Name: 3-benzoyl-4-(α-methylstyryl)-2-pyrazoline
• Synonyms: 3-benzoyl-4-(α-methylstyryl)-2-pyrazoline
• CAS NO: 296759-69-8
• Molecular Weight: 290.365
• Mol File: 296759-69-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 3-benzoyl-4-(α-methylstyryl)-2-pyrazoline(CAS DataBase Reference)
• NIST Chemistry Reference: 3-benzoyl-4-(α-methylstyryl)-2-pyrazoline(296759-69-8)
• EPA Substance Registry System: 3-benzoyl-4-(α-methylstyryl)-2-pyrazoline(296759-69-8)

Safety Data

• Hazardous Substances Data: 296759-69-8(Hazardous Substances Data)

Upstream product

• 98-86-2 acetophenone 
• 186581-53-3 diazomethane 
• 135388-59-9 (E,E)-γ-methylcinnamylideneacetophenone 

Relevant articles and documents

Synthesis of 3-benzoyl-4-styryl-2-pyrazolines and their oxidation to the corresponding pyrazoles

The 3-benzoyl-4-styryl-2-pyrazolines 2a-g were prepared from the regioselective 1,3-dipolar cycloaddition reactions of (E,E)- cinnamylideneacetophenones 1a-g and diazomethane. The new compounds 3-(2- benzofuranyl)-4-styryl-2-pyrazolines (5c,d) were also obtained as by-products in some cases. The oxidation of the 3-benzoyl-4-styryl-2-pyrazolines 2a-g into 3(5)-benzoyl-4-styrylpyrazoles 3a-g is also reported. Configurational and conformational features of all compounds were established by NMR spectroscopy.