tert-Butanol → HCID 86629119, compound

Participants

Reaction Steps

Treat a mixture of (R)-4-benzyl-3-[(S)-2-(4-methoxy-2,6-dichloro-benzyl)-pent-4-enoyl]-oxazolidin-2-one (6.65 g, 14.87 mmol), tetrahydrofuran (140 mL) and water (45 mL) with 2.5% osmium tetroxide in t-butanol (378 mL, 1.487 mmol). Add sodium periodate (9.55 g, 44.63 mmol) and stir the reaction 4 hr at room temperature. Quench the reaction with water and extract with ethyl acetate. Wash the organic phase with aqueous 1N sodium thiosulfate then brine. Dry the organic layer over magnesium sulfate, filter, and concentrate under vacuum. Purify the crude material by silica gel chromatography using hexanes:ethyl acetate to elute the pure product. Concentrate the fractions containing product under vacuum to afford 3.35 g (49%) of desired product. MS (m/z): 451 (M+).

Provenance & Evidence