Hydrochloric Acid → HCID 22402961, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of dimethyl 1-ethyl-2-methyl-4,5-benzimidazoledicarboxylate (5.30 g, 19.2 mmol), methanol and 5N sodium hydroxide (30 mL, 150 mmol) is stirred for 4 hours at 100° C., cooled, acidified with hydrochloric acid and filtered to give the title product as a lemon yellow powder (4.07 g, 85.5%), identified by 1HNMR spectral analysis.

Provenance & Evidence