Hydrochloric Acid → HCID 14836847, compound

Participants

Reaction Steps

The procedure is as in Example 3, starting with N-ethyl-2-(p-trifluoromethoxyanilino)ethanesulphonamide (6.1 g), potassium thiocyanate (7.6 g) and bromine (3.6 g) in acetic acid (60 cc). After 18 hours at a temperature in the region of 20° C., neutralization with 30% strength sodium hydroxide and extraction with ethyl acetate, a crude product is obtained, which product is converted to a hydrochloride by adding 4.2N ethereal hydrogen chloride (5 cc) in ethanol (30 cc) and recrystallized in absolute ethanol (50 cc). N-Ethyl-2-(2-imino-6-trifluoromethoxy-3-benzothiazolinyl)ethanesulphonamide hydrochloride (3.0 g), m.p. 240° C., is thereby obtained.

Provenance & Evidence