Addition of Lithiated <i>C</i>-Nucleophiles to 2,3-<i>O</i>-Isopropylidene-d-erythronolactone: Stereoselective Formation of a Furanose <i>C</i>-Disaccharide
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Addition of PhLi and lithiated dithianes to 2,3-O-isopropylidene-d-erythronolactone affords lactols, which are reduced with Et3SiH to the corresponding C-glycosides, the structures of two of which have been solved by X-ray diffraction. The use of a d-ribose-derived lithiated dithiane nucleophile in this chemistry allows for the convenient construction of a furanose C-disaccharide.
创建时间:
2016-05-07



