DIB-b (blue)

Base Information

• Chemical Name: DIB-b (blue)
• CAS No.: 4506-61-0
• Molecular Formula: C₂₀H₁₄N₄
• Molecular Weight: 310.358
• Mol file: 4506-61-0.mol

Synonyms:2,2'-(1,2-phenylene)bis-1H-benzimidazole

Chemical Property of DIB-b (blue)

Chemical Property:

Purity/Quality:

98.5% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of DIB-b (blue)

There total 10 articles about DIB-b (blue) which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 100.0%

C20H12N4 → 2,2'-(1,2-phenylene)bis-1H-benzimidazole (4506-61-0)

Guidance literature:

With hydrazine; In methanol; at 20 ℃;

DOI:10.1039/b301512m

Reference yield: 90.0%

phthalic acid dimethyl ester (131-11-3,64441-70-9) + 1,2-diamino-benzene (95-54-5) → 2,2'-(1,2-phenylene)bis-1H-benzimidazole (4506-61-0)

Guidance literature:

In 1,2-dimethoxyethane; at 190 ℃; for 4h;

DOI:10.1016/j.poly.2021.115232

Reference yield: 85.0%

phthalic anhydride (85-44-9) + 1,2-diamino-benzene (95-54-5) → 2,2'-(1,2-phenylene)bis-1H-benzimidazole (4506-61-0)

Guidance literature:

With poly(phosphoric acid); at 180 ℃; for 3h;

DOI:10.1039/b205150h

upstream raw materials:

phthalic anhydride

1,2-diamino-benzene

1,2-benzoylenebenzimidazole

1,4-dichlorophthalazine

Refernces

• 1、 Korshak et al.. "-". . p. 589,592. Retrieved 1974.
• 2、 Berrada,Carriere,Abboud,Abourriche,Benamara,Lajrhed,Kabbaj,Berrada. "Preparation and characterization of new soluble benzimidazole-imide copolymers". . p. 3551 - 3559. Retrieved 2002.
• 3、 Wu, Weicheng,Grimsdale, Andrew C.,Mueullen, Klaus. "Cyclodehydrogenation of di- and tetra(benzimidazol-2-yl)benzenes to give model heteroaromatic discotic systems". . p. 1044 - 1045. Retrieved 2003.
• 4、 Elagab, Hamdi Ali. "Ti (IV) complexes of some heterocyclic ligands synthesis, characterization and ethylene polymerization activity". . p. 681 - 700. Retrieved 2016/05/09.