Abstract

An application of the Barton ester based radical reactions in carbohydrate chemistry is described. The chain-elongation reaction with ethyl α-trifluoroacetoxy acrylate 2, followed by treatment with phenylhydrazine provided 3-deoxy-α-hydrazono-octulosonates 8a,b, derivatives of KDO and its gluco-isomer in good yield.

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