2-(4-bromo-1-(5-(tert-butyl)-[1,1'-biphenyl]-2-yl)-1H-benzo[d]imidazol-2-yl)-4,6-di-tert-butylphenol

Red-brown crystalline powder

Sodium metabisulfite (96 g, 507 mmol, 2.0 equiv) was added to a solution of 3-bromo-N1-(5-(tert-butyl)-[1,1′-biphenyl]-2-yl)benzene-1,2-diamine (100 g, 253 mmol, 1.0 equiv) and 3,5-di-tert-butyl-2-hydroxybenzaldehyde (83 g, 355 mmol, 1.4 equiv) in N, N-dimethyl formamide (600 mL). After that, the reaction mixture was heated to 110° C. After 16 hours. Water (900 mL) was added to the cooled reaction mixture. The suspension was filtered and the sticky solid was washed with water (100 mL). The solid was triturated with methanol (3×200 mL) to give 2-(4-bromo-1-(5-(tert-butyl)-[1,1'-biphenyl]-2-yl)-1H-benzo[d]imidazol-2-yl)-4,6-di-tert-butylphenol.

H351 (83.48%): Suspected of causing cancer [Warning Carcinogenicity]
H373 (100%): Causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
H412 (100%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

Very soluble in N,N-Dimethylformamide,Soluble in methanol,Sparingly soluble inglacial acetic acid, Very slightly soluble inchloroform, Practically insoluble in water.