反应详情

A solution of product from step C, (9.5 g; 42 mmol), N-bromosuccinimide (NBS) (8.22 g; 46.2 mmol), 2,2′-azobis(2′-methylpropionitrile) (25 mg; 0.15 mmol) and benzoylperoxide (25 mg; 0.1 mmol) in CCl4 (100 ml) was heated at reflux for 5 hours. The solid was filtered and the filtrate evaporated to give methyl 4-bromomethyl-2-phenylbenzoate as an oil (9.43 g; 74%) which was used in the next step without further purification.

1. temperatureat reflux for 5 hours
2. filtrationThe solid was filtered
3. customthe filtrate evaporated