反应详情

To 3',4'-difluoropropiophenone (Alfa Products, Danvers, Mass. 01923) (90.5 g, 0.53 mole) was added a solution of dioxane dibromide (131 4 g, 0.53 mole) in dioxane (500 ml). The reaction was worked up as in Example 1 to yield crude 2-bromo-3',4'-difluoropropiophenone (130.5 g).