反应详情

温度

-5 °C

30 Grams of anhydrous aluminum chloride are added portionwise to a mixture made of 41.85 g of 2-acetyl-5-bromo-6-methoxynaphthalene, 22.15 g of durene and 180 ml of anhydrous methylene chloride cooled to -5° C., in such a manner that the temperature of 20° C. is not exceeded. The reaction mixture is kept for 2 hours at room temperature after the end of the addition and then it is worked as in example 1 obtaining 27.1 g of product with a yield equal to 90.6% calculated on the basis of the starting material 2-acetyl-5-bromo-6-methoxynaphthalene.

1. customthat the temperature of 20° C.
2. additionafter the end of the addition