Ammonium Acetate → HCID 21913531, compound

Participants

Reaction Conditions

Reaction Steps

A sealed tube containing ammonium acetate (7.5 g) and 2-butyl-6,7-dimethyl-4-phenoxy-1-(2-phenoxyethyl)-1H-imidazo[4,5-c]pyridine (0.75 g) from Part C was heated in an oil bath to 150° C. for 48 hours. The reaction reached 70% completion and was allowed to cool to room temperature. The reaction mixture was then dissolved in ethyl acetate and washed with a saturated aqueous solution of sodium bicarbonate. The organic layer was dried with magnesium sulfate and concentrated under reduced pressure. The product was passed through a silica gel column using 10/90 methanol/ethyl acetate as the eluant. To remove impurities, the product was recrystallized twice from acetonitrile with charcoal. The resulting white crystals were crushed and dried to yield 2-butyl-6,7-dimethyl-1-(2-phenoxyethyl)-1H-imidazo[4,5-c]pyridin-4-amine, m.p. 130.0–132.0° C.

Provenance & Evidence