反应详情

3-Fluorophenyl 4-methoxyphenyl ketone (580 mg) obtained in Example 150 was dissolved in dichloromethane (5 ml), a solution of 1.0 M boron tribromide in dichloromethane (23 ml) was added while cooled in ice, and the admixture was stirred at room temperature for 3 days. The reaction mixture was treated in the same manner as described in 121 to obtain 402 mg of the title compound (yield: 74%).

1. temperaturewhile cooled in ice
2. additionThe reaction mixture was treated in the same manner