5-Bromo-2-bromomethyl-benzoic acid methyl ester

79669-50-4

79670-17-0

Methyl 5-bromo-2-methylbenzoate (1 g, 4.4 mmol) was added to N-bromosuccinimide (0.80 g, 4.4 mmol) and benzoyl peroxide (56 mg, 0.23 mmol) in carbon tetrachloride (20 mL). The reaction mixture was stirred at 85°C for 2 hours. Upon completion of the reaction, the mixture was filtered through a silica gel pad and subsequently concentrated under vacuum to afford the target product methyl 5-bromo-2-bromomethylbenzoate (1.3 g, 97% yield). The structure of the product was confirmed by ESI-MS, m/z: 306.0 [M + H]+.