Pyridine → HCID 54064120, compound

Participants

Reaction Steps

1.2 g of 4'-[(2-n-Propyl-4-methyl-6-(1-methyl-benzimidazol-2-yl)-benzimidazol-1-yl)-methyl]-2-sulpho-biphenyl are stirred with 10 ml of pyridine at 60° C. for 1 hour. The solution is then evaporated down, the residue is stirred with acetone and suction filtered. It is then taken up in 15 ml of thionylchloride and stirred for 1 hour at 60° C. After evaporation the residue is taken up in 10 ml of dimethylformamide and stirred into 10 ml of dimethylformamide saturated with ammonia. After 15 minutes stirring at ambient temperature the mixture is evaporated down and chromatographed on silica gel with dichloromethane/ethanol (98:2).

Provenance & Evidence