反应详情

A solution of 21.8 g (0.1 mol) of 4,5-dichloro-2-dichloromethylene-imidazole was added to a solution of 15 g (0.11 mol) of N-methyl-benzamide in 100 ml of dioxane. The mixture was then heated briefly to the boil and discharged into ice water. The oil which first precipitated out became solid after a few hours. After the product had been filtered off, washed with water and dried, 6.0 g (20% of theory) of N-benzoyl-N-methyl-4,5-dichloro-imidazole-2-carboxylic acid amide with a melting point of 168° C. (acetonitrile) were obtained.

1. temperatureThe mixture was then heated briefly to the boil
2. customThe oil which first precipitated out
3. customafter a few hours
4. filtrationAfter the product had been filtered off
5. washwashed with water
6. customdried