反应详情

N-Bromosuccinimide (1.0 g) and 2,2′-azobis(2-methylpropionitrile) (20 mg) were added to a solution of (4-methoxy-3-methyl-phenyl)-acetic acid (1.1 g) in chloroform (25 mL) and heated to reflux for 4 hours. On cooling, the mixture was evaporated, the residue dissolved in ethyl acetate, washed sequentially with 2M aqueous hydrochloric acid (2×50 mL), brine (50 mL), dried (magnesium sulfate) and concentrated to give the subtitle compound as an oil (1.4 g).

1. temperatureheated
2. temperatureto reflux for 4 hours
3. temperatureOn cooling
4. customthe mixture was evaporated
5. dissolutionthe residue dissolved in ethyl acetate
6. washwashed sequentially with 2M aqueous hydrochloric acid (2×50 mL), brine (50 mL)
7. dry with materialdried (magnesium sulfate)
8. concentrationconcentrated