Journal
TETRAHEDRON
Volume 67, Issue 22, Pages 4118-4122Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2011.03.109
Keywords
manno-Pentasaccharide; Sequential one-pot glycosylation; In situ removal of tert-butyldiphenylsilyl ether
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Funding
- CSIR, New Delhi
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A branched mannose-pentasaccharide was synthesized in a convergent one-pot sequence involving chemo- and regioselective glycosylations of suitable acceptors and in situ removal of tert-butyldiphenylsilyl group. The process demonstrated that a combination of TMSOTf and TfOH can be used as an effective reagent for the fast and selective in situ de-protection of tert-butyldiphenylsilyl group, and also serve as part of the promoter system for the subsequent glycosylation reaction. (C) 2011 Elsevier Ltd. All rights reserved.
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