反应详情

A mixture of 5-Methoxy-3-methyl-benzo(d)isoxazole (4.9 g, 0.03 mol.) in 48% hydrobromic acid (20 mL) and acetic acid (20 mL) was refluxed for 4 hrs. The mixture was concentrated to give 6.2 g solid. MS (m/e): 149 (M+).

1. temperaturewas refluxed for 4 hrs
2. concentrationThe mixture was concentrated