Water → 2,2,2-Trichloroethyl 1,2,3-thiadiazol-5-ylcarbamate

関与物質

反応手順

To a solution of 1,2,3-thiadiazol-5-amine and pyridine (0.129 ml, 4.00 mmol) in tetrahydrofuran (4.5 ml) was added 2,2,2-trichloroethyl chloroformate (0.220 ml, 2.00 mmol) under ice-cooling, and the mixture was stirred at room temperature for 2 hours. Water was poured to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was washed with water, and dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. Hexane was added to the residue, and 190 mg (51.6%) of the desired product was collected by filtration as a solid.

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