273749-29-4

Upstream product

• 107-21-1 ethylene glycol 
• 412008-72-1 1-methyl-2-(2-nitrophenyl)-1H-benzimidazol-4-carbaldehyde 
• 871915-76-3 [1-methyl-2-(2-nitrophenyl)-1H-benzimidazol-4-yl]methanol 
• 560086-19-3 1-methyl-2-(2-nitrophenyl)-1H-benzimidazole-4-carboxylic acid 

Downstream Products

• 273749-30-7 2-(4-([1,3]dioxolan-2-yl)-1-methyl-1H-benzimidazol-2-yl)phenylamine 

Relevant academic research and scientific papers

Synthesis and metalation of a chiral, pyridine-strapped, cyclic bis(benzimidazole) ligand

(Equation presented) Synthesis of a chiral, strapped, cyclic bis(benzimidazole) ligand is reported. This compound forms a stable, Jahn-Teller-distorted, octahedral Cu(II) complex in which the elongated axis is positioned within the main macrocycle. The C

Cyclic bis-benzimidazole ligands and metal complexes thereof

Cyclic bis benzimidazole ligands of the following formula are formed by contacting a (2-aminophenyl)-benzimidazole-4-carboxaldehyde ethylene acetal or a (2-nitrophenyl)-benzimidazole-4-benzaldehyde with an acid optionally in the presence of a metal or a metal salt. wherein R1and R2may be the same or different and are selected from H, an alkyl having 1 to 10 carbon atoms, a benzyl group, a substituted 2-ethylphenyl group, a carbonyl group, a phenyl substituent, a tosyl group, and an alkylsulfonate group; R3and R4may be the same or different and are selected from H, methyl, and ethyl; and R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, and R18may be the same or different and are selected from H, alkyl having 1 to 10 carbon atoms, fluoride, chloride, bromide, iodide, nitro, amino, a carboxylate, an ester, and a phenyl group.