40655-18-3

Basic information

• Product Name: 2-(p-Nitrophenyl)-5-aminobenzimidazole
• Synonyms: 2-(p-Nitrophenyl)-5-aminobenzimidazole
• CAS NO: 40655-18-3
• Molecular Weight: 254.248
• Mol File: 40655-18-3.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 2-(p-Nitrophenyl)-5-aminobenzimidazole(CAS DataBase Reference)
• NIST Chemistry Reference: 2-(p-Nitrophenyl)-5-aminobenzimidazole(40655-18-3)
• EPA Substance Registry System: 2-(p-Nitrophenyl)-5-aminobenzimidazole(40655-18-3)

Safety Data

• Hazardous Substances Data: 40655-18-3(Hazardous Substances Data)

Upstream product

• 5922-25-8 N,N¹-(1,4-phenylene)bis(4-nitrobenzamide) 
• 106-50-3 1,4-phenylenediamine 
• 555-16-8 4-nitrobenzaldehdye 
• 615-71-4 benzene-1,2,4-triamine 
• 87345-60-6 1,2,4-Tris(p-nitrobenzamido)benzene 
• 615-47-4 benzene-1,2,4-triamine dihydrochloride 
• 87345-61-7 5-(p-Nitrobenzamido)-2-(p-nitrophenyl)benzimidazole 
• 87345-62-8 1,5-Bis(p-nitrobenzamido)-2-(p-nitrophenyl)benzimidazole 

Downstream Products

• 7621-86-5 6-amino-2-(4'-aminophenyl)-benzimidazole 
• 87345-65-1 N,N'-Bis<2-(4-aminophenyl)benzimidazol-5-yl>terephthaloyl diamide 
• 87345-63-9 N,N'-Bis<2-(4-nitrophenyl)benzimidazol-5-yl>terephthaloyl diamide 

Relevant articles and documents

Synthesis method of 2-(4-aminophenyl)-5-aminobenzimidazole

The present invention provides a synthesis method of 2- (4-aminophenyl)-5-aminobenzimidazole, comprising the following steps: step 1, preparation of N,N'-bis (4-nitro - α- chlorinated) phenylmethylene p-phenylenediamine; step 2, using N, N'-bis(4-nitro - α- chloro) phenylmethylene p-phenylenediamine preparation N, N'-bis (4-nitro - α - imino) benzyl p-phenylenediamine; step 3, using N, N'-di (4-nitro - α - imino) benzyl p-phenylenediamine preparation 2- ( Step 4, 2-(4-nitro)phenyl-5-aminobenzimidazole was hydrogenated with a hydrogenation catalyst and hydrogen to give 2-(4-amino)phenyl-4-aminobenzimidazole. The present invention is intended to achieve a low production cost and high safety, less harmful pollutants 2- (4-aminophenyl) -5-aminobenzimidazole synthesis method.

SYNTHESIS OF SYMMETRICAL TEREPHTHALOYL DERIVATIVES OF 2-(p-AMINOPHENYL)-5-AMINOBENZIMIDAZOLES - MONOMERS FOR THE PREPARATION OF POLYAMIDES

Various methods for the synthesis of symetrical terephthaloyl derivatives of 2-(p-aminophenyl)-5-aminobenzimidazoles were studied.Acylation of the isomeric aminonitro-2-phenylbenzimidazoles obtained in this research with subsequent reduction of the nitro groups was found to be the most preparatively convenient method.