反应详情

To a solution of 3,4-difluoroaniline (646 mg, 5 mmol) in isopropanol (10 mL) was added diphenyl cyanocarbonimidate (1.19 g, 5 mmol) and the suspension was stirred at room temperature over night. The precipitate was filtered off, washed with isopropanol and dried under reduced pressure to yield the title compound as a white solid (1.18 g, 86%).

1. filtrationThe precipitate was filtered off
2. washwashed with isopropanol
3. customdried under reduced pressure