Add time:07/12/2019         Source:sciencedirect.com

Addition of CF3OF to 3,4-di-O-acetyl-l-fucal gave a 95% yield of two di-O-acetyl-2-deoxy-2-fluoro-l-fucosyl derivatives separable by column chromatography, both in crystalline form. The derivatives were identified by 1H and 19F-NMR to be the α-fluoride and the α-trifluoromethyl-glycoside. Acidic hydrolysis of either derivative gave the free sugar 2-deoxy-2-fluoro-l-fucose (non-crystalline), further characterised as the crystalline 1,3,4-tri-O-α-acetate.

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