反应详情

First, 93 g (0.49 mol) of 2-bromo-4-fluorophenol was suspended in 200 ml of water, into which 55 g (0.59 mol) of methyl chloroformate and a solution of 21.5 g (0.51 mol) of sodium hydroxide in 60 ml of water were poured together at 10° C. or lower, and the mixture was stirred at the same temperature for 2 hours. The precipitated crystals were collected by filtration, washed with water, and dried in a vacuum oven, which afforded 111.6 g (0.45 mol) of methyl 2-bromo-4-fluorophenoxyformate.

1. filtrationThe precipitated crystals were collected by filtration
2. washwashed with water
3. customdried in a vacuum oven, which