1311196-92-5

Basic information

• Product Name: (Z)-5-phenyl-4-(1-phenylethylidene)-1-(phenylsulfonyl)-4,5-dihydro-1H-pyrazole
• Synonyms: (Z)-5-phenyl-4-(1-phenylethylidene)-1-(phenylsulfonyl)-4,5-dihydro-1H-pyrazole
• CAS NO: 1311196-92-5
• Molecular Weight: 388.49
• Mol File: 1311196-92-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (Z)-5-phenyl-4-(1-phenylethylidene)-1-(phenylsulfonyl)-4,5-dihydro-1H-pyrazole(CAS DataBase Reference)
• NIST Chemistry Reference: (Z)-5-phenyl-4-(1-phenylethylidene)-1-(phenylsulfonyl)-4,5-dihydro-1H-pyrazole(1311196-92-5)
• EPA Substance Registry System: (Z)-5-phenyl-4-(1-phenylethylidene)-1-(phenylsulfonyl)-4,5-dihydro-1H-pyrazole(1311196-92-5)

Safety Data

• Hazardous Substances Data: 1311196-92-5(Hazardous Substances Data)

Upstream product

• 80-17-1 benzenesufonyl hydrazide 
• 127-66-2 2-Phenyl-3-butyn-2-ol 
• 1666-16-6 N-benzylidene-N'-benzenesulfonylhydrazone 

Relevant articles and documents

Tandem reaction of propargyl alcohol and N-sulfonylhydrazone: Synthesis of dihydropyrazole and its utility in the preparation of 3,3-diarylacrylonitrile

An efficient and straightforward strategy for the synthesis of 4-methylene-1-(phenylsulfonyl)-4,5-dihydro-1H-pyrazole from propargyl alcohol and N-sulfonylhydrazone is described. N-Sulfonyl allenamide is postulated to be the key intermediate for this tandem transformation.