Triethylamine → 2-[4-(3-Oxo-1,2-benzothiazol-2-yl)phenyl]acetic acid

Participants

Reaction Steps

To a mixture of 7.55 g (0.05 mol) of 4-aminophenylacetic acid and 15.15 g (0.15 mol) of triethylamine in 25 mL of ethyl cellosolve was added 10.3 g (0.05 mol) of 2-chlorosulfenylbenzoyl chloride (Arzneimittel Forsch., 1964;14:1301). The mixture was stirred at room temperature for 3 hours, concentrated in vacuo, and water was added to the residue. The mixture was acidified with HCl and filtered to give 9.9 g of the title compound, mp 173°-175° C.

Provenance & Evidence