56156-44-6

Basic information

• Product Name: 3-(p-nitrophenyl)-1,5-diphenylformazan
• Synonyms: 3-(p-nitrophenyl)-1,5-diphenylformazan
• CAS NO: 56156-44-6
• Molecular Weight: 345.36
• Mol File: 56156-44-6.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: 3-(p-nitrophenyl)-1,5-diphenylformazan(CAS DataBase Reference)
• NIST Chemistry Reference: 3-(p-nitrophenyl)-1,5-diphenylformazan(56156-44-6)
• EPA Substance Registry System: 3-(p-nitrophenyl)-1,5-diphenylformazan(56156-44-6)

Safety Data

• Hazardous Substances Data: 56156-44-6(Hazardous Substances Data)

Upstream product

• 149833-51-2 (E)-1-(4-nitrobenzylidene)-2-phenylhydrazine 
• 62-53-3 aniline 
• 2684-02-8 benzenediazonium 
• 555-16-8 4-nitrobenzaldehdye 
• 100-63-0 phenylhydrazine 
• 38335-24-9 3-(4-nitrophenyl)-2-oxopropanoic acid 

Downstream Products

• 25413-97-2 5-(4-nitro-phenyl)-2,3-diphenyl-tetrazolium; chloride 
• 74121-72-5 1,1-diacetoxy-2,6-diphenyl-4-p-nitrophenyl-1,2,3,5,6-boratetrazine 
• 31994-78-2 3-(4-nitrophenyl)-1,5-diphenylverdazyl 

Relevant articles and documents

Arylations mediated by lead(IV) in the presence of formazan and imine ligands

The use of formazan and imine ligands in arylations of β-dicarbonyl systems by phenyl boronic acid/lead(IV) carboxylates is examined.

Syntheses of formazans under phase-transfer conditions

Several 1,3,5-triarylformazans were synthesized (42-77%) using a new methodology. Azo-coupling of aryldiazonium salts with arylaldehyde arylhydrazones under mild basic conditions in two-phase liquid-liquid media is efficiently promoted by phase-transfer catalysts (onium salts or dicyclohexano-18-crown-6) at 5-25°C. The condensation of benzaldehyde with phenylhydrazine followed by phase-transfer catalyzed azo-coupling with phenyldiazonium chloride (one-pot procedure) gave 1,3,5-triphenylformazan in a 54% yield without isolation of the intermediate benzaldehyde phenylhydrazone. A double azo-coupling reaction of phenyldiazonium chloride with 9 different CH-active compounds afforded corresponding formazan only in the case of phenylpyruvic acid. Reaction in malonamide gave 3-carbamoyl-1,5-diphenylformazan instead of the expected 1,5-diphenylformazan.