反应详情

To a cooled (5° C.) solution of 4-chloro-3,5-dinitrobenzonitril (50 g, 0.22 mol) in anhydrous DMF (200 ml) was added aniline (40 ml, 0.44 mol) dropwise over 1 hour. The resultant mixture was stirred for additionally 1 hour at 0° C. and then poured into ice-water (1400 g). The precipitate was filtered off, washed with water and air-dried to afford N-phenyl-4-cyano-2,6-dinitroaniline, quantitatively.

1. filtrationThe precipitate was filtered off
2. washwashed with water
3. customair-dried