反应详情

A mixture of 0.5 g (2.2 mmol) of 6-nitro-2-(methylthio)benzothiazole (7) and 3.7 g (20 mmol) methyl-p-toluensulfonate was heated from 120° C. to 145° C. over one hour. The solution was allowed to cool, and to it was added 30 ml of ether. The resulting amorphous solid was triturated with acetone to provide 0.57 g (1.4 mmol, 63%) of 8 as a pale, mauve solid.

1. temperaturewas heated from 120° C. to 145° C. over one hour
2. temperatureto cool
3. customThe resulting amorphous solid was triturated with acetone