反应详情

To 19.6g of 1,3-dihydro-4-methyl-2H-imidazol-2-one and 53.2 g of anhydrous aluminum chloride in 150 ml of nitrobenzene is added dropwise 34.2 g of p-methoxybenzoyl chloride and the mixture is poured on 500 ml of 2N-HCl and ice, washed 3 times with ethyl ether, the resulting solid is recrystallized from isopropanol-water to give the title compound. M.P. 257°-258° C. (dec.).

1. washwashed 3 times with ethyl ether
2. customthe resulting solid is recrystallized from isopropanol-water