反应详情

温度

10 °C

1.07 g (0.01 mole) of lutidine is added to a solution of 30.7 g (0.05 mole) of 1-(2,4,6-trichlorophenyl)-3-(2-chloro-5-myristoylaminoanilino)-2-pyrazolin-5-one and 8 g (0.06 mole) of anhydrous aluminium chloride in 100 ml of dichloromethane. The solution is cooled to 10° C and 5.90 g (0.075 mole) of acetylchloride are added. 8 g (0.075 mole) of lutidine divided into 4 portions of 2 g each (one portion every 15 min) are added in a total period of time of 1 h, the temperature being kept below 10° C. The reaction mixture is stirred for 2 h more and then poured out into 1 l of 1N aqueous hydrochloric acid. The dichloromethane layer is washed until free from acid, dried, and concentrated by evaporation. The product is agitated with methanol.

1. customevery 15 min
2. additionare added in a total period of time of 1 h
3. custombeing kept below 10° C
4. washThe dichloromethane layer is washed until free from acid
5. customdried
6. concentrationconcentrated by evaporation
7. stirringThe product is agitated with methanol