352020-76-9Relevant articles and documents
Stereoselective glycosylation of exo-glycals by microwave-assisted Ferrier rearrangement
Lin, Hui-Chang,Chang, Chih-Chun,Chen, Jia-Yi,Lin, Chun-Hung
, p. 297 - 301 (2005)
exo-Glycosyl carbonates were shown to be efficient glycosyl donors in microwave-assisted glycosylation. In these reactions α-glycosyl additions occurred with excellent stereoselectivity and were complete in 4-8 min with 75-92% yield. Interestingly exo-glycals were found to have higher activity than endo-glycals and common glycosides, the reactions of which can be improved by the addition of Lewis acid to result in a higher yield and enhanced stereoselectivity.
A facile synthesis of 1′-C-alkyl-α-disaccharides from 1-C-alkyl-hexopyranoses and methyl 1-C-methyl-hexopyranosides
Li, Xiaoliu,Ohtake, Hiro,Takahashi, Hideyo,Ikegami, Shiro
, p. 4297 - 4309 (2007/10/03)
Direct O-glycosidations using the 1-C-alkyl-2,3,4,6-tetra-O-benzyl-hexopyranoses as the glycosyl donors were carried out with a catalytic amount (0.2 equiv.) of trimethylsilyl trifluoromethanesulfonate (TMSOTf). The glycosidations proceeded α-stereoselect