反应详情

To a slurry of 2-methyl-4[4,5-dichloro-2-nitroanilino]-1,2,3-triazole-5-carbonitrile (1.1 g) in ethanol (10 ml) was added anhydrous stannous chloride (2.0 g) in concentrated hydrochloric acid (10 ml) and the solution heated at reflux for one hour, cooled and the resulting solid filtered and dried at 70° C. under reduced pressure to give an orange crystalline solid, recrystallised from ethanol, melting point >255° C.

1. temperaturethe solution heated
2. temperatureat reflux for one hour
3. temperaturecooled
4. filtrationthe resulting solid filtered
5. customdried at 70° C. under reduced pressure
6. customto give an orange crystalline solid
7. customrecrystallised from ethanol, melting point >255° C.