1,3-Diphenylisobenzofuran → 3-Bromo-7,12-diphenylbenzo[k]fluoranthene

Participants

Reaction Conditions

Reaction Steps

A mixture of 14.9 g (55.2 mmol) of 1,3-diphenylisobenzofuran, 12.8 g (55.2 mmol) of 5-bromoacenaphthylene, and 50 mL of toluene was stirred for 16 hours under heat refluxing. After distilling off the solvent, 1,200 mL of acetic acid was added, and the mixture was heated at 80° C. To this mixture, 150 mL of a 48% HBr aqueous solution was added, and the mixture was stirred at 80° C. for one hour. After cooling the resultant mixture to room temperature, a precipitate was collected by filtration and washed with methanol. The resulting yellow solid was recrystallized from 200 mL of toluene. A crystal was collected by filtration to obtain 19.8 g (yield: 74%) of 3-bromo-7,12-diphenylbenzo[k]fluoranthene as a yellow solid.

Provenance & Evidence