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Tobias Gylling Frihed, Mads Heuckendorff, Dr. Christian Marcus Pedersen and Prof. Dr. Mikael Bols Easy Access to L-Mannosides and L-Galactosides by Using C[BOND]H Activation of the Corresponding 6-Deoxysugars Angewandte Chemie International Edition 51

Version of Record online: 29 OCT 2012 | DOI: 10.1002/anie.201206880

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Rare sugars by CH activation: The title compounds have been prepared from the corresponding 6-deoxysugars by an intramolecular C[BOND]H activation in high yields. Diethyl silane is attached to the 4-OH group followed by formation of a Si[BOND]C bond; both transformations are catalyzed by iridium in a one-pot fashion. The subsequent Fleming–Tamao oxidation provided the L-sugars.

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