L-(-)-Sorbose → Diacetone L-sorbose

참여 물질

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반응 단계

To 200 ml of acetone were added 10.0 g of L-sorbose and 234 mg of iodine trichloride and the mixture was refluxed with stirring in a water bath at 60° C. for 4 hours. During this reaction, the refluxing solvent was dried with 20 g of Molecular Sieves 3A interposed between the reaction vessel and the cooling jacket. The reaction mixture was then subjected to an after-treatment similar to that described in Example 11 to give 9.85 g (68.2%) of 2,3:4,6-di-O-isopropylidene-L-sorbofuranose (purity ≥98%).

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