反应详情

2-Methylbenzothiazole (74.6 pbw) and methyl toluenesulfonate (93.1 pbw) are mixed with one another and heated with stirring. At about 120° C. an exothermic reaction starts, in which the temperature of the mixture rises to 180° C. The solution is kept at this temperature for 10 minutes and then cautiously poured into 1000 pbw of acetone. The suspension obtained is stirred for one hour. The precipitate is removed by filtration with suction and washed with acetone. The powder obtained is dried in vacuo over phosphorus pentoxide.

1. temperatureheated
2. customAt about 120° C. an exothermic reaction
3. customrises to 180° C
4. customThe suspension obtained
5. stirringis stirred for one hour
6. customThe precipitate is removed by filtration with suction
7. washwashed with acetone
8. customThe powder obtained
9. dry with materialis dried in vacuo over phosphorus pentoxide