Trifluoromethanesulfonic acid → HCID 54241444, compound

Participants

Reaction Steps

Then, phenacyl 3-hydroxy-2-n-octadecyl-octadecanoate (IV) (1.81 g, 2.94 millimole) was dissolved in dry methylene chloride (80 ml) under, argon atmosphere, and benzyl 2,2,2-trichloro-acetimidate (0.66 ml, 3.53 millimole) and trifluoromethane sulfonic acid (0.052 ml, 0.59 millimole) were successively added dropwise thereto with ice cooling. The reaction mixture was allowed to warm to room temperature, and to react for 17 hours, then methylene chloride was added to the reaction mixture, and the obtained solution was successively washed with saturated aqueous sodium bicarbonate solution and water, and then dried over anhydrous sodium sulfate. The solvent was distilled off from the solution. The residue was dissolved in a developing solvent (benzene:n-hexane=6:4), and fractionated through silicagel column (benzene:n-hexane=6:4), and the fast eluting fractions comprising impurities were discarded and then the later colorless fractions were pooled and the solvent was distilled off to give phenacyl 3-benzyloxy-2-n-tetradecyl-octadecanoate (V) (783.9 mg) in the form of colorless oil.

Provenance & Evidence