反应详情

1-(Chloromethyl)benzotriazole (20.4 g), prepared above, and sodium sulfide monohydrate (14.4 g) in anhydrous ethanol (75 ml) were stirred overnight (20 hours) at room temperature. Water (240 ml) was added to the reaction mixture. The precipitate was filtered, washed with water to remove inorganic salts and dried. Crystallization from ethanol gave 15.6 g (88%) of desired product (Compound 1); m.p. 179°-181° C. (lit. 182°-184° C.). Thin Layer Chromotography in (CHCl3 /Ethyl acetate) showed only one spot.

1. filtrationThe precipitate was filtered
2. washwashed with water
3. customto remove inorganic salts
4. customdried
5. customCrystallization from ethanol