反应详情

温度

20 °C

132 Parts of sodium hydrogen sulphide was dissolved in 400 parts of water, and stirred at 20° C. 53 Parts of 6-nitro-2-mercaptobenzothiazole, prepared as described previously herein, was added over 10 minutes; the reaction mixture was then heated to 110° C., and stirred whilst boiling the mixture under reflux conditions. After four hours boiling, the mixture was cooled to between 0° and 5° C. and stirred for one hour. The product, 6-amino-2-mercaptobenzothiazole (30.3 parts), was isolated by filtration, washed sparingly with cold water and dried at 60° C. for 24 hours.

1. additionwas added over 10 minutes
2. temperaturethe reaction mixture was then heated to 110° C.
3. stirringstirred whilst
4. temperaturethe mixture was cooled to between 0° and 5° C.
5. stirringstirred for one hour