Hydrochloric Acid → HCID 4380357, compound

Participants

Reaction Steps

Dimethyl carbonate (2.38 g) and sodium methoxide (0.30 g) are added to 3-amino-5-methylisoxazole (0.49 g), and the resultant mixture is stirred at 100° C for 3 hours. After cooling, the reaction mixture is combined with water (15 ml), adjusted to pH 1 with a small amount of c. hydrochloric acid and shaken twice with ethyl acetate. The organic layer is washed with water, dried over anhydrous sodium sulfate and evaporated to remove the solvent. The resulting light yellow crystals (0.52 g) are chromatographed on a column of silica gel, whereby methyl N-(5-methyl-3-isoxazolyl)carbamate is obtained as crystals melting at 136.0° to 137.0° C.

Provenance & Evidence