Hydrochloric Acid → HCID 86744871, compound

Participants

Reaction Steps

The procedure is as in Example 3, starting with N-methyl-2-(p-trifluoromethoxyanilino)ethanesulphonamide (3.5 g), potassium thiocyanate (4.7 g) and bromine (2.2 g) in acetic acid (30 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 (3 cc) in ethanol (25 cc) and recrystallized in absolute ethanol (50 cc). The N-methyl-2-(2-imino-6-trifluoromethoxy-3-benzothiazolinyl hydrochloride thereby obtained (2.1 g) melts at 242° C.

Provenance & Evidence