反应详情

5 g (0.23 mole) of 4,5-methylenedioxy-2-nitrobenzoic acid are suspended in 50 ml of thionyl chloride and refluxed for 2 hours. The solution obtained is concentrated under reduced pressure. The residual oil crystallizes immediately after the addition of 50 ml of petroleum ether. The crystals are spun and recrystallized in ether.

1. temperaturerefluxed for 2 hours
2. customThe solution obtained
3. concentrationis concentrated under reduced pressure
4. customThe residual oil crystallizes immediately
5. additionafter the addition of 50 ml of petroleum ether
6. customrecrystallized in ether