Hydrochloric Acid → HCID 59240289, compound

Participants

Reaction Conditions

Reaction Steps

To a 250 mL round bottom flask was added 1-(4-Bromo-2-chloro-phenyl)-2-(2-chlorophenyl)-1H-imidazole-4-carboxylic acid ethyl ester (3.60 g, 8.18 mmol), MeOH (65 mL), and IN aq NaOH (41 mL). The reaction solution was allowed to stir at 50° C. for 2 hr. The reaction solution was diluted with EtOAc (200 mL), neutralized by the addition of aq 1 N HCl, and poured into a separatory funnel. The organic phase was partitioned, and the aqueous phase was and extracted with EtOAc (150 mL×2). The combined organic phases were dried over Na2SO4, filtered into a round bottom flask and concentrated on the Rotavapor. The crude residue was reprecipitated in an EtOAc/hexane solution and the solid precipitate was filtered under vacuum to afford 2.98 g (88% yield) of title product. MS (ESI) 410.3, 412.3, 414.3 [M+H]+.

Provenance & Evidence