反应详情

1.0 g of azobisisobutyronitrile was added to a solution of 84.0 g (0.38 mol) of methyl 2,4-dichloro-3-methylbenzoate and 67.6 g (0.38 mol) of N-bromosuccinimide in 380 ml of carbon tetrachloride. After heating for 3.5 hours under reflux, the reaction mixture was cooled and the resulting precipitate was filtered off with suction. The filtrate was concentrated under reduced pressure and the resulting residue was triturated with methyl tert-butyl ether. 108.0 g of methyl 3-bromomethyl-2,4-dichlorobenzoate were obtained.

1. temperatureAfter heating for 3.5 hours
2. temperatureunder reflux
3. temperaturethe reaction mixture was cooled
4. filtrationthe resulting precipitate was filtered off with suction
5. concentrationThe filtrate was concentrated under reduced pressure
6. customthe resulting residue was triturated with methyl tert-butyl ether