Hydrochloric Acid → HCID 18681093, compound

Participants

Reaction Steps

A 10% sodium hydroxide aqueous solution (3.61 g), 5 ml of ethanol and 3 ml of water were added to 0.97 g of 1-benzyl-6-ethoxycarbonyl-2-n-propylbenzimidazole, and the mixture was heat-refluxed for 1 hour. The reaction solution was adjusted to a pH of 6 with 10% hydrochloric acid, and was concentrated under reduced pressure. Ethanol was added to the residue, and the inorganic salt was separated through filtration. The filtrate was concentrated under reduced pressure to give 0.85 g of 1-benzyl-6-carboxy-2-n-propylbenzimidazole (126).

Provenance & Evidence