Methyl chloroformate → HCID 18424408, compound

Participants

Reaction Steps

An amount (0.53 g) of 1-fluoro-2-fluoromethyl-3-butyn-2-yl 4-trifluoromethylphenyl ether was dissolved in diethyl ether (3 ml); to the solution under cooling with ice, a hexane solution (1.4 ml) of 1.69 M n-butyllithium was added dropwise under a nitrogen atmosphere. After the end of the dropwise addition, the mixture was stirred for 1 hour under cooling with ice. The resulting mixture was added dropwise to a solution of methyl chloroformate (0.38 g) in diethyl ether (3 ml) under a nitrogen atmosphere under cooling with ice. After stirring the mixture for 1 hour under cooling with ice, hexane was added, followed by washing with water and a saturated aqueous solution of sodium chloride. The mixture was dried with anhydrous sodium sulfate and concentrated under reduced pressure; the resulting residue was subjected to silica gel column chromatography (eluent; hexane/methylene chloride=1/1) to give the titled compound (0.51 g).

Provenance & Evidence