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Additive-controlled stereoselective glycosylations of 2,3-oxazolidinone protected glucosamine or galactosamine thioglycoside donors with phenols based on preactivation protocol.
- Source :
-
Carbohydrate Research . Feb2015, Vol. 403, p104-114. 11p. - Publication Year :
- 2015
-
Abstract
- Stereo-controllable glycosylation reactions of 2,3-oxazolidinone protected glucosamine thioglycoside donor with different phenol acceptors based on preactivation protocol, are described. It was found that BF 3 ·Et 2 O worked as α-directing additive, while TTBP acted as β-directing additive. Simply by altering additives, either α-aryl glycosides or β-aryl glycosides were achieved in a stereoselective manner. The additives were also applied to the stereoselective glycosylation reactions of 2,3-oxazolidinone protected galactosamine donor with phenol substrates. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00086215
- Volume :
- 403
- Database :
- Academic Search Index
- Journal :
- Carbohydrate Research
- Publication Type :
- Academic Journal
- Accession number :
- 100796159
- Full Text :
- https://doi.org/10.1016/j.carres.2014.07.004