反应详情

A mixture of 3-chloro-5-methylphenylethyl acetate (0.20 g; 0.958 mol), N-bromosuccinimide (0.21 g; 1.21 mmol) and 2,2-azobis(isobutyronitrile) (0.01 g; 0.037 mmol) in carbon tetrachloride (2 ml) were refluxed for 2 hours. After cooling and filtration of the precipitate, the filtrate was condensed under reduced pressure. The residue was purified by column chromatograph on silica gel (hexane:ethyl acetate=20:1) to give 3-bromomethyl-5-chlorophenylethyl acetate as colorless oil (0.16 g; 57%).

1. temperaturewere refluxed for 2 hours
2. temperatureAfter cooling
3. filtrationfiltration of the precipitate
4. customcondensed under reduced pressure
5. customThe residue was purified by column chromatograph on silica gel (hexane:ethyl acetate=20:1)