反应详情

温度

0 °C

1-[2-Hydroxy-4-(4-methoxy-benzyloxy)-phenyl]-ethanone (9.11 g, 0.034 mol) is dissolved in dry dichloromethane (120 ml) under an atmosphere of dry argon. Triethylamine (5.14 ml, 0.037 mol) and 4-dimethylaminopyridine (0.204 g, 1.67 mmol) are added, and the mixture is cooled to 0° C. using an ice-water bath. Isobutyryl chloride (3.89 ml, 0.037 mol) is then added dropwise, and the mixture is stirred while warming to room temperature. The mixture is poured into water (100 ml), and the dichloromethane layer is separated, washed with saturated brine (100 ml), dried (MgSO4), treated with activated charcoal (300 mg), filtered and evaporated to give a pale pink solid.

1. temperaturewhile warming to room temperature
2. customthe dichloromethane layer is separated
3. washwashed with saturated brine (100 ml)
4. dry with materialdried (MgSO4)
5. additiontreated with activated charcoal (300 mg)
6. filtrationfiltered
7. customevaporated
8. customto give a pale pink solid