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Direct glycosylation with anomeric hydroxy sugars by activation with 3-fluorophthalic anhydride and trifluoromethanesulfonic anhydride
Authors:Ju Yuel Baek
Affiliation:Center for Bioactive Molecular Hybrids and the Department of Chemistry, Yonsei University, Seoul 120-749, Republic of Korea
Abstract:
An efficient and direct one-pot glycosylation method using anomeric hydroxy sugars as glycosyl donors, employing 3-fluorophthalic anhydride and triflic anhydride as activating agents, has been developed. The present glycosylation utilizing 3-fluorophthalic anhydride resulted in few to no undesired self-condensed esters than the glycosylation using phthalic anhydride. Intermediates in the present glycosylation were identified by an NMR study.
Keywords:Glycosylation   3-Fluorophthalic anhydride   Glycosyl fluorophthalate
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