反应详情

温度

0 °C

The raw material meta-bromophenylacetic acid (100 g, 0.47 mol, 1.0 eq) was dissolved in dichloromethane (500 ml), then was cooled to 0° C. in ice-salt bath. Oxalyl chloride (120 g, 0.95 mol, 2.0 eq) was added dropwise to the reaction mixture with temperature maintaining 0° C. After the dropping was finished, the reaction temperature was changed to room temperature and reacted for two hours. The reaction mixture was concentrated under reduced pressure to obtain meta-bromophenylacetyl chloride (110 g, 0.47 mol) after the reaction completed. The obtained meta-bromophenylacetyl chloride was dissolved in dichloromethane (200 ml) for further use.

1. customwas changed to room temperature
2. customreacted for two hours
3. concentrationThe reaction mixture was concentrated under reduced pressure