反应详情

温度

90 °C

A suspension of 29.0 g of iron powder and 20.0 g of ammonium chloride in 50 ml of water was heated to 90° C. with vigorous stirring. To this was added 24.0 g of 1-bromo-3-fluoro-5-nitrobenzene portionwise. The mixture was refluxed for 4 hours, cooled to room temperature and filtered to remove insoluble matter. The insoluble matter and the filtrate were extracted, respectively, with ethyl acetate. Both extracts were combined together and evaporated in vacuo to give 12.1 g of the title compound. Vacuum distillation of a portion thereof gave an analytical sample boiling at 103.0°-105.0° C. /7 mm Hg.

1. temperatureThe mixture was refluxed for 4 hours
2. temperaturecooled to room temperature
3. filtrationfiltered
4. customto remove insoluble matter
5. extractionThe insoluble matter and the filtrate were extracted
6. customevaporated in vacuo