Hexahydrophthalic anhydride, cis- → HCID 15017912, compound

Participants

Reaction Steps

0.6 g (1.5 mmol) of 4'-[(6-amino-2-n-butyl-benzimidazol-1-yl)-methyl]biphenyl-2-carboxylic acid are dissolved in 150 ml of methylene chloride with heating and cooled to ambient temperature. After the addition of 240 mg (1.55 mmol) of cis-cyclohexan-1,2-dicarboxylic acid anhydride the mixture is stirred for 5 hours at ambient temperature. The reaction product which crystallises out is suction filtered, washed with,methylene chloride and dried in a vacuum drying chamber at 50° C. Yield: 0.58 g (69.8% of theory), Melting point: 186°-188° C. C33H35N3O5 (553.66) Calculated: C 71.59 H 6.37 N 7.59 Found: 71.42 6.56 7.56

Provenance & Evidence