Catalytic and Chemoselective Glycosylation between “Armed” and “Disarmed” Glycosyl p-Trifluoromethylbenzylthio-p-trifluoromethylphenyl Formimidates
- 1 July 2002
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 31 (7) , 746-747
- https://doi.org/10.1246/cl.2002.746
Abstract
Catalytic and chemoselective glycosylation between novel “armed” and “disarmed” glycosyl p-trifluoromethylbenzylthio-p-trifluoromethylphenyl formimidates was effectively performed in the presence of a catalytic amount of TfOH and MS 4A in CH2Cl2 at -78 °C. In addition, it was noted that highly 1,2-cis or 1,2-trans stereoselective synthesis was established when the above glycosylation was carried out at -78 °C in tBuOMe or EtCN, respectively.Keywords
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