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Zinc-Mediated Synthesis of α-C-Glycosides from 1,2-Anhydroglycosides.

✍ Scribed by Song Xue; Kai-Zhen Han; Lin He; Qing-Xiang Guo

Publisher
John Wiley and Sons
Year
2003
Weight
143 KB
Volume
34
Category
Article
ISSN
0931-7597

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Stereoselective Synthesis of α-C-(Alkynyl)-glycosides via Ring-Opening of α-1,2-Anhydrosugars. -In the presence of ZnCl2 the α-1,2-epoxide function in sugars is selectively ring-opened by lithium alkynyl derivatives to form α -glycosides with retention of configuration. -