2-Amino-4-(trifluoromethyl)benzenethiol → Ethyl 5-(trifluoromethyl)-2-benzothiazolecarboxylate

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

To 2-amino-4-trifluoromethyl-benzenethiol (0.7 g) was added ethyl triethoxyacetate (3 eq). The mixture was stirred at 110° C. overnight. The reaction mixture was cooled and triturated with hexane. Filtration gave 460 mg of 5-trifluoromethyl-benzothiazole-2-carboxylic acid ethyl ester as a white solid.

Herkunft & Nachweise