N-bromobutanimide → HCID 86672776, compound

Participants

Reaction Steps

N-Bromosuccinimide (326 mg, 1.83 mmol) was added to a solution of (2-methoxy-3,5-dimethyl-phenyl)-methyl-carbamic acid tert-butyl ester (456 mg, 1.72 mmol) in dichloromethane (1.8 ml) at 0° C., and the mixture was stirred at room temperature for 50 minutes. The reaction mixture was diluted with dichloromethane and adjusted to pH 9 and washed with water and a 1 N aqueous NaOH solution (1 ml), and the organic layer was dried over MgSO4 and concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (hexane-ethyl acetate) to give (4-bromo-2-methoxy-3,5-dimethyl-phenyl)-methyl-carbamic acid tert-butyl ester as a colorless solid (545 mg, 92%).

Provenance & Evidence