Azobisisobutyronitrile → 2-Bromomethyl-5-phenyl-benzoxazole

Participants

Reaction Steps

2-Methyl-5-phenyl-benzoxazole 48 (1.05 g, 5.0 mmol), N-bromosuccinimide (89 mg, 5.0 mmol) and azodilsobutyronitrile (AIBN) (41 mg, 0.25 mmol) in 10 ml of CCl4 was heated to reflux. After 5 hrs an additional 50 mg AIBN were added and the mixture was refluxed overnight. The mixture was diluted, washed with water, dried and concentrated. The crude product was chromatographed to give about 465 mg 2-bromomethyl-5-phenyl-benzoxazole 49.

Provenance & Evidence