反应详情

6-Bromophthalide (5.85 gms; 0.0275 mole), N-bromosuccinimide (4.89 gm; 0.0275 mole) and azobisbutyronitrile (0.1 gm) were gently refluxed in dry carbon tetrachloride (200 ml.) for 2 hours. On cooling, the succinimide was filered off and the solvent removed in vacuo to give an oil, which was used immediately.

1. temperatureOn cooling
2. customthe solvent removed in vacuo
3. customto give an oil, which