反应详情

4-Hydroxy-3-methoxybenzoyl chloride, which was prepared from 4-hydroxy-3-methoxybenzoic acid (1.01 g) and thionyl chloride (0.53 ml), was dissolved in dichloroethane (10 ml). The resultant solution was added on ice to a suspension of aluminum chloride (2.08 g) in dichloroethane (20 ml). Following, 1-(phenylsulfonyl)indole (1.85 g) in dichloroethane (10 ml) was added to the resultant with cooling on ice bath and stirred for 1.5 hours at room temperature. The reaction mixture was poured into 1N HCl (100 ml). The precipitate was collected by filtration and washed with water and methanol, obtaining 1.22 g of 3-(4-hydroxy-3-methoxybenzoyl)-1-(phenylsulfonyl)-indole as colorless crystals.

1. temperaturewith cooling on ice bath
2. filtrationThe precipitate was collected by filtration
3. washwashed with water and methanol