94243-51-3

Basic information

• Product Name: 1H-Pyrazole, 3-[(4-chlorophenyl)sulfonyl]-4,5-dihydro-
• CAS NO: 94243-51-3
• Molecular Formula: C9H9ClN2O2S
• Molecular Weight: 244.702
• Mol File: 94243-51-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1H-Pyrazole, 3-[(4-chlorophenyl)sulfonyl]-4,5-dihydro-(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-Pyrazole, 3-[(4-chlorophenyl)sulfonyl]-4,5-dihydro-(94243-51-3)
• EPA Substance Registry System: 1H-Pyrazole, 3-[(4-chlorophenyl)sulfonyl]-4,5-dihydro-(94243-51-3)

Safety Data

• Hazardous Substances Data: 94243-51-3(Hazardous Substances Data)

Upstream product

• 186581-53-3 diazomethane 
• 5535-51-3 p-chlorophenyl vinyl sulfone 

Relevant articles and documents

Synthesis and Spectral Studies of Some 3-Arylsulphonyl-2-pyrazolines

The cycloaddition of diazomethane to aryl vinyl sulphones in the presence of triethylamine at 0 deg C gives 3-arylsulphonyl-2-pyrazolines (2).The orientation of addition has been arrived on the basis of IR, PMR and 13C NMR spectral data.The characteristic N-H absorption of 2 and the absence of this in 1-arylsulphonyl- and 1-benzoyl-2-pyrazolines (3 and 4) together with A2B2 pattern observed for 2, 3 and 4 establish the structure of 2.