Ethyl vinyl ether → HCID 66730438, compound

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Reaction Steps

Trans-4-[2-(benzyloxy)ethoxy]tetrahydrofuran-3-ol (2.20 g, 9.23 mmol) synthesized in (18a), ethyl vinyl ether (3.33 g, 46.2 mmol), and pyridinium paratoluene sulfonate (231 mg, 0.92 mmol) were dissolved in dichloromethane (22 ml), followed by stirring at room temperature for one hour. Triethylamine (187 mg, 1.84 mmol) was then added, and the resulting mixture was directly purified by silica gel column chromatography (hexane:ethyl acetate, 100:0-0:100, V/V) to give trans-3-[2-(benzyloxy)ethoxy]-4-(ethoxymethoxy)tetrahydrofuran (2.88 g, yield 100%). This compound (1.55 g, 5.00 mmol) was dissolved in methanol (30 ml), to which 20% palladium hydroxide-carbon (155 mg) was added, followed by stirring at room temperature for one hour under a hydrogen atmosphere. The resulting solution was concentrated under reduced pressure to give the desired title compound (725 mg, yield 98%).

Provenance & Evidence