反应详情

A solution of 5.5 g (27.9 mmole) of N-(3,5-dimethylphenyl)aniline, 27.9 mL of 1.93M phosgene in toluene and 15 mL of toluene was heated at 90° C. under nitrogen for 2 hours with stirring. The solution was cooled, flushed with nitrogen for 2 hours to remove excess phosgene and concentrated in vacuo to give 7.15 g (99%) of a red oil.

1. temperatureThe solution was cooled
2. customflushed with nitrogen for 2 hours
3. customto remove excess phosgene
4. concentrationconcentrated in vacuo