120638-24-6

Basic information

• Product Name: 3-methyl-1,4,5-triphenyl-1H-pyrazole
• Synonyms: 3-methyl-1,4,5-triphenyl-1H-pyrazole
• CAS NO: 120638-24-6
• Molecular Weight: 310.398
• Mol File: 120638-24-6.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 3-methyl-1,4,5-triphenyl-1H-pyrazole(CAS DataBase Reference)
• NIST Chemistry Reference: 3-methyl-1,4,5-triphenyl-1H-pyrazole(120638-24-6)
• EPA Substance Registry System: 3-methyl-1,4,5-triphenyl-1H-pyrazole(120638-24-6)

Safety Data

• Hazardous Substances Data: 120638-24-6(Hazardous Substances Data)

Upstream product

• 98-80-6 phenylboronic acid 
• 38661-88-0 (E)-1,2-diphenylbut-1-en-3-one 
• 100-63-0 phenylhydrazine 
• 574-07-2 syn-benzoin phenylhydrazone 
• 75-07-0 acetaldehyde 

Relevant articles and documents

Ligand-Dependent Site-Selective Suzuki Cross-Coupling of 4-Bromopyrazol-5-yl Triflates

Ligand-dependent Suzuki cross-coupling of 4-bromopyrazol-5-yl triflates has been developed. This approach enabled selective introduction of an aryl substituent at the C4 or C5 position in pyrazoles. This protocol is the first example in which the cross-coupling proceeded predominantly at the C4 position in pyrazoles, which is generally recognized as the least reactive position. The selection of phosphine ligands switched the order of arylation. This method should be highly useful for preparing diverse poly-substituted pyrazole derivatives.

Pyrazoles by Cyclisation of Benzoin Phenylhydrazone with Aldehydes

By fusing (E)- or (Z)-benzoin phenylhydrazone and aldehydes, 3-substituted 1H-pyrazoles (2) are obtained.The structure of 2d was confirmed by X-ray analysis.