反应详情

105 g (0.48 mol) of 25 and 90 g (0.5 mol) of N-bromo-succinimide were dissolved in 2000 cm3 of tetrachloro-methane at room temperature, 3 g of azobisisobutyronitrile were added, and the mixture was refluxed for 4 hours. The succinimide which precipitated was filtered off, the solvent was removed in vacuo, and the residue was purified by filtration through 1000 g of silica gel (hexane/methylene chloride 9:1), giving 112 g (79%) of 26 as a colorless lachrymatory oil.

1. temperaturethe mixture was refluxed for 4 hours
2. customThe succinimide which precipitated
3. filtrationwas filtered off
4. customthe solvent was removed in vacuo
5. filtrationthe residue was purified by filtration through 1000 g of silica gel (hexane/methylene chloride 9:1)