21159-60-4

Basic information

• Product Name: 1H-Pyrazole, 5-(2-furanyl)-3-(4-methoxyphenyl)-1-phenyl-
• CAS NO: 21159-60-4
• Molecular Formula: C20H16N2O2
• Molecular Weight: 316.359
• Mol File: 21159-60-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1H-Pyrazole, 5-(2-furanyl)-3-(4-methoxyphenyl)-1-phenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-Pyrazole, 5-(2-furanyl)-3-(4-methoxyphenyl)-1-phenyl-(21159-60-4)
• EPA Substance Registry System: 1H-Pyrazole, 5-(2-furanyl)-3-(4-methoxyphenyl)-1-phenyl-(21159-60-4)

Safety Data

• Hazardous Substances Data: 21159-60-4(Hazardous Substances Data)

Upstream product

• 98-01-1 furfural 
• 100-06-1 1-(4-methoxyphenyl)ethanone 
• 4035-37-4 5-furan-2-yl-3-(4-methoxy-phenyl)-1-phenyl-4,5-dihydro-1H-pyrazole 

Relevant articles and documents

One-pot solvent-free synthesis of 1,3,5-trisubstituted 1H-pyrazoles catalyzed by H3[PW12O40]/SiO2 under microwave irradiation

An efficient synthesis of 1,3,5-trisubstituted 1H-pyrazoles was developed. 1,3,5-Trisubstituted-1H-pyrazoles were synthesized starting from α,β-unsaturated aldehydes/ketones and hydrazine using catalyst H3[PW12O40]/SiO2 under microwave irradiation and solvent-free conditions (74–90%) and were characterized by HR-MS, FT-IR, 1H NMR, and 13C NMR spectroscopy. It was found that silica had a good loading and dispersing effect on phosphotungstic acid and could effectively absorb microwave energy to promote the condensation reaction. The merits of the method included the environmental friendly reaction conditions, simple operation, extensive substrates, good yields, and reuse of the H3[PW12O40]/SiO2. Moreover, the crystal structure of compound 1-(4-chlorophenyl)-5-(2-methoxyphenyl)-3-(4-nitrophenyl)-1H-pyrazole in triclinic P-1 space group was presented. Graphical abstract: [Figure not available: see fulltext.]