반응 #8940
ord-679afb7de0c84e5997e01e80c7d10604
반응 조건
상세 조건
See reaction.notes.procedure_details.
후처리
- 1온도the reaction mixture was heated
- 2온도at reflux
- 3기타to yield a clear solution
- 4온도at reflux
- 5기타the solvent was removed in vacuo and excess HCl and thionyl chloride
- 6기타was chased by evaporation with dichloroethane
실험 절차
Thionyl chloride (4 mL) was added to a suspension of the benzothiazole-6-sulfonic acid (0.60 g, 2.79 mmol) in dichloroethane (15 mL) and the reaction mixture was heated at reflux and dimethylformamide (5 mL) was added to the reaction mixture to yield a clear solution. After 1.5 hr. at reflux, the solvent was removed in vacuo and excess HCl and thionyl chloride was chased by evaporation with dichloroethane.