Ammonia → 4-(3-Ethynylphenylamino)-7-methoxyquinazolin-6-ol

Participants

Reaction Steps

A mixture of 4-(3-ethynylphenylamino)-7-methoxyquinazolin-6-yl acetate hydrochloride (10 g, 0.027 mol), methanol (250 ml) and 25% aqueous ammonia (8 ml, 0.106 mol, 3.93 equiv) was stirred at room temperature for 17 hours and then heated to reflux for 1.5 hours. The mixture was cooled and the precipitate was formed and isolated and dried to give 5.66 g product. MS (ESI) m/z: 307 (M+1).

Provenance & Evidence