4-Methoxy-2-aminobenzothiazole → 2-(Acetoxyacetylamino)-4-methoxybenzothiazole

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Reaction Steps

2-Amino-4-methoxybenzothiazole (4.5 g) is dissolved in pyridine (80 ml) and thereto is added dropwise acetoxyacetyl chloride (3.0 ml) at room temperature. After the mixture is stirred at room temperature for 2 hours, the solvent is distilled off. The resulting solids are washed with water and then with diethyl ether, dried and recrystallized from ethanol to give the title compound (4.3 g) having the following physical properties.

Provenance & Evidence