D-Fructose cyanohydrin

Zervas and Sessler synthesized an isomeric mono-O-isopropylidene-D-fructose by acetonating 1,6-di-O-benzoyl-D-fructose, prepared by treatment of D-fructose cyanohydrin with two molar proportions of benzoyl chloride in the presence of pyridine. The cyclic acetal obtained after debenzoylation was named 2,3-acetone-a-D-fructo-furanose by the authors, although, quite evidently, it is 2,3-0-isopropylidene-j8-D-fructofuranose (90). 

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