反应详情

Ethyl 2-(4-bromobenzoyl)-2-(9H-xanthen-9-yl)acetate (10.0 g, 0.02 mol) was heated in a solution of dimethylsulphoxide (100 ml) and water (0.72 ml) following the procedure described in Example (iv) to give 1-(4-bromophenyl)-2-(9H-xanthen-9-yl)ethanone as a yellow solid.