反应详情

3-(4-Methoxybenzoyl)-2-phenylbenzofuran (16.4 g., 0.05 mol.) is combined with 50 g. of freshly distilled pyridine hydrochloride and the mixture is refluxed 1 hour. The hot mixture is poured with stirring onto an ice-dilute hydrochloric acid mixture and the precipitate is collected to give 3-(4-hydroxybenzoyl)-2-phenylbenzofuran.

1. additionThe hot mixture is poured
2. customthe precipitate is collected