HCID 131716980, compound → HCID 11041589, compound

Participants

Reaction Conditions

Reaction Steps

Methyl 5-C-hydroxymethyl-α-L-arabino-hexopyranose (3) (59.0 g 0.263 moles) is dissolved in 0.70M sulfuric acid (260 ml), and stirred at 100° C. for 90 minutes. The solution is cooled to room temperature and neutralized using an ion exchange resin (Amberlite IRA-400 (OH-). The resin is filtered off, and the filtrate is refluxed for 15 minutes with activated carbon (4.0 g). Carbon is removed with a glass fiber filter, and the filtrate is evaporated to dryness with ethanol. The white waxy residue is refluxed for 15 minutes with methanol (50ml). The solution is stored overnight at 0° C. The product is filtered to yield 20.0 g (39.6%) of 1,6-anhydro-5-C-hydroxymethyl-β-L-altropyranose (4)

Provenance & Evidence