反应详情

To a solution of 1,5-difluoro-2,4-dinitrobenzene (7.4 g) and triethylamine (4.4 g) in toluene (74 g) kept at room temperature, a mixture of glycolonitrile (3.1 g) and toluene (6.2 g) was dropwise added, followed by stirring at room temperature for 2 hours. The reaction mixture was poured into 5% hydrochloric acid and extracted with ethyl acetate. The organic layer was washed with water and concentrated to give 2,4-dinitro-5-fluorophenoxyacetonitrile (8.2 g; yield, 93.8%). M.P., 112°-113° C. (recrystallized from ethyl acetate-hexane).

1. customkept at room temperature
2. additionwas dropwise added
3. extractionextracted with ethyl acetate
4. washThe organic layer was washed with water
5. concentrationconcentrated