Pyridine → HCID 12019883, compound

Participants

Reaction Steps

To the mixture of ethyl (S)-lactate (23.6 g), pyridine (15.8 g) and diethyl ether (400 ml) was added dropwise a solution of chloromethyl chloroformate (25.6 g) in diethyl ether (100 ml) under ice cooling over the period of 40 minutes. After stirring at room temperature for 14 hours, the resulting solid was removed off by filtration. The filtrate was concentrated under reduced pressure and the residue was dissolved in ethyl acetate (250 ml). The solution was washed with water (150 ml×2) and a saturated sodium chloride aqueous solution (150 ml). After drying over anhydrous magnesium sulfate, the solvent was distilled off under reduced pressure to obtain chloromethyl [(1S)-1-(ethoxycarbonyl)ethyl] carbonate (38.5 g) as a colorless liquid.

Provenance & Evidence