Boron Trichloride → HCID 66816495, compound

Participants

Reaction Steps

Boron trichloride (0.93 ml, 0.93 mmol, 1.0 M solution in dichloromethane) was added to a solution of 1-(2-(benzyloxy)ethyl)-1-(4-bromo-3,5-dimethylphenyl)-3-(2-hydroxyethyl)urea (98 mg, 0.23 mmol) in anhydrous dichloromethane (4.6 ml) at −78° C., and the mixture was stirred at the same temperature for two hours. A saturated aqueous sodium bicarbonate solution was added to the reaction mixture, followed by extraction with ethyl acetate. The organic phase was sequentially washed with water and saturated brine and concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (dichloromethane-methanol) to give 1-(4-bromo-3,5-dimethylphenyl)-1,3-bis(2-hydroxyethyl)urea (64 mg, 83%).

Provenance & Evidence