Hydrochloric Acid → 5-(4-(difluoromethoxy)-2-hydroxy-3-methoxyphenyl)isobenzofuran-1(3H)-one

Participants

Reaction Conditions

Reaction Steps

To a stirring solution of 5-(4-(difluoromethoxy)-3-methoxy-2-(methoxymethoxy)phenyl) isobenzofuran-1(3H)-one (1 g, 2.73 mmol) in methanol (75 mL) was added concentrated hydrochloride (5 mL) and the reaction mixture was heated to 50° C. for 1 h. The reaction mixture was cooled to RT and concentrated under reduced pressure. The obtained residue was basified with sodium bicarbonate solution and extracted with dichloromethane (3×). The combined dichloromethane layers were washed with brine, dried over sodium sulphate and concentrated under reduced pressure to afford the title compound as a solid (800 mg, 91%).

Provenance & Evidence