反应详情

1.2 g. 3-imino-1-phenyl-3H-1,2-benzisothiazole-1-oxide are heated under reflux for 15 minutes with 0.4 g. acetyl chloride and 0.7 g. triethylamine in dioxan. Thereafter, the reaction mixture is poured into water and the precipitate obtained is filtered off with suction and recrystallised from ethyl acetate. There is thus obtained 3-(acetylimino)-1-phenyl-3H-1,2-benzisothiazole-1-oxide; m.p . 119°C.

1. temperatureunder reflux for 15 minutes with 0.4 g
2. customthe precipitate obtained
3. filtrationis filtered off with suction
4. customrecrystallised from ethyl acetate
5. custom119°C.