873070-80-5Relevant articles and documents
Sulfonated Lewis X trisaccharide and synthesis method and application thereof
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Paragraph 0077-0078, (2019/06/07)
The invention relates to sulfonated Lewis X trisaccharide having the following structural formula as described in the description, wherein R1 is selected from a hydrogen atom, an alpha- or beta-configuration serine residue, an alpha- or beta-configuration
FeCl3 mediated arylidenation of carbohydrates
Basu, Nabamita,Maity, Sajal K.,Roy, Soumik,Singha, Shuvendu,Ghosh, Rina
experimental part, p. 534 - 539 (2011/04/27)
Glycosides and thioglycosides based on monosaccharides in reaction with benzaldehyde dimethylacetal or p-methoxybenzaldehyde dimethyl acetal undergo FeCl3-catalyzed (20 mol %) regioselective 4,6-O-arylidenation producing the corresponding acetals in high yields. FeCl3 also mediates acetalation of glycosides and thioglycosides of cellobiose, maltose, and lactose affording the corresponding 4′,6′-O-benzylidene acetals, which were isolated after their acetylation in situ with acetic anhydride and pyridine. The combined yields (two steps) of these final products are also high (61-84%). The procedure is applicable to a wide variety of functional groups including -OBn.