Sodium periodate → HCID 178495704, compound

Participants

Reaction Steps

10.7 g (29.28 mmol) of (R)-5-methoxymethyl-3-[4-(trans-4-methylsulfanylmethoxy-cyclohexyl)-phenyl]-oxazolidin-2-one were dissolved in 500 ml of methanol, cooled to 0° and treated dropwise while stirring during 90 minutes with a solution of 4.7 g (22.0 mmol) of sodium periodate in 150 ml of water. The reaction mixture was stirred in a cold storage chamber at 4°-5° for 19 hours. Thereafter, it was diluted with 1 l of water and extracted with methylene chloride. The organic phase was washed with water, dried over sodium sulfate and filtered. The filtrate was filtered through a 400 g silica gel 60 pad and washed in succession and separately with ethyl acetate (800 ml), methanol (1 l) and tetrahydrofuran (800 ml). 3.16 g of educt remained behind after evaporation of the ethyl acetate eluate. After evaporation the methanol and tetrahydrofuran eluates gave 8.11 g of (R)-3-[4-(trans-4-methanesulfinylmethoxy-cyclohexyl)-phenyl]-5-methoxymethyl-oxazolidin-2-one (S-oxide R:S=1:1 diastereomer mixture) as a yellow oil, b.p. 205°/0.02 mbar, [α]D =-32.2° (c=1.0%, DMSO).

Provenance & Evidence