反应详情

The cold thiocyanogen solution was added to the stirred solution of 1-amino-5-nitronaphthalene, maintaining the temperature at 5°-15° C. The mixture was stirred a further one hour at 5°-15° C. and then made just alkaline (pH 7-8) by addition of concentrated ammonium hydroxide solution. The reaction mixture, after filtering from a small amount of insoluble material, was evaporated to dryness. The solid obtained was stirred with water, filtered, washed and dried.

1. temperaturemaintaining the temperature at 5°-15° C
2. filtrationThe reaction mixture, after filtering from a small amount of insoluble material
3. customwas evaporated to dryness
4. customThe solid obtained
5. filtrationfiltered
6. washwashed
7. customdried