Journal
ORGANIC LETTERS
Volume 10, Issue 18, Pages 4137-4139Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol801889n
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- Chinese University of Hong Kong
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A new and stereoselective intramolecular direct aldol reaction of diketones derived from carbohydrates has been developed to construct carbocycles with D-gluco-, D-galacto-, D-manno-, and L-ido-configurations. The stereochemical outcome of the aldol reaction of the diketone is dependent on the base used. Transformation of D-gluco-aldols readily affords valiolamine which also constitutes a formal synthesis of voglibose. Facile conversion of D-gluco-cyclohexanones into validoxylamine G has been achieved in 12 steps with 15.1% overall yield from D-glucose.
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