Methyl chloroformate → HCID 4629173, compound

Participants

Reaction Steps

2.0g of ethyl 2-amino-4-methyl-thiazole-5-carboxylate and 2.7ml of triethylamine were dissolved in 40ml of dichloromethane and then 1.1ml of methyl chloroformate was added thereto at 0° C. The reaction mixture was stirred for 6 hours at normal temperature, evaporated to remove the solvent and then extracted with 10% aqueous sodium hydroxide solution and ethylacetate. The organic layer was separated, dried over anhydrous magnesium sulfate and then evaporated to obtain 2.1g (Yield 81%) of ethyl 2-methoxycarbonylamino-4-methyl-thiazole-5-carboxylate as a pale yellow solid. The resulting product was hydrolyzed according to the same procedure as PREPARATION 1 to obtain 1.4g (Yield 75%) of the title compound as a pale yellow solid.

Provenance & Evidence