Highly α-Stereoselective One-pot Sequential Glycosylation Using Glucosyl Thioformimidate Derivatives
- 22 January 2003
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 32 (2) , 172-173
- https://doi.org/10.1246/cl.2003.172
Abstract
Several trisaccharides were prepared by efficient highly α-stereoselective one-pot sequential glycosylation using glucosyl p-trifluoromethylbenzylthio-p-trifluoromethylphenyl formimidates (abbreviated to: glucosyl thioformimidates) in the presence of a catalytic amount of TfOH. Factors that controlled the high α-stereoselectivity were determined by characteristic properties of thioformimidate groups contained both in glucosyl donor and acceptor.Keywords
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