Azobisisobutyronitrile → 1-(Bromomethyl)-3-(3-fluorophenoxy)benzene

Participants

Reaction Conditions

Reaction Steps

90 g (0.445 mol) of 3-(3-fluorophenoxy)-toluene were dissolved in 300 ml of anhydrous carbon tetrachloride and heated under reflux together with 79.3 g of N-bromosuccinimide. After reaching 70° C., 5 g of azodiisobutyronitrile were added. After about 10-20 minutes the reaction commenced, with evolution of heat, and after the exothermic reaction had subsided the mixture was heated for a further 4 hours under reflux. The reaction batch was then cooled to 10° C., the succinimide was filtered off and the carbon tetrachloride was distilled of in vacuo. The oil which remained was distilled at 143°-150° C./1 mm Hg. 72.9 g (58.2% of theory) of 3-(3-fluorophenoxy)-benzyl bromide were obtained.

Provenance & Evidence