HCID 22402938, compound → HCID 54173576, compound

Participants

Reaction Steps

A mixture of 1,2-dimethyl-4,5-benzimidazoledicarboxylic acid (1.00 g, 4.27 mmol) and acetic anhydride (10 mL) is stirred 4 hours at reflux temperature, allowed to stand overnight at room temperature and filtered to afford the title product as yellow crystals (0.830 g, 89.8%), mp 295° C. (dec).

Provenance & Evidence