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Carbohydrates glycosylamines

Kallin, E., Lonn, H., Norberg, T., and Elofsson, M. (1989) Derivatization procedures for reducing oligosaccharides, Part 3 Preparation of oligosaccharide glycosylamines, and their conversion into oligosaccharide-acrylamide copolymers./. Carbohydr. Chem. 8, 597-611. [Pg.1080]

Two bases approaches are used in the synthesis of sugar carbamides direct interaction of carbohydrates with carbamides and their analogs in the conditions of acid catalysis (a) and interaction of acetylation N-glycosylisothiocyanates with amines (b) or interaction of acetylation N-glycosylamines with arylisothiocyanates (c) [3],... [Pg.268]

The Maillard condensation is one of the most extensively studied reactions within the field of degradation chemistry, particularly in the area of food and nutritional science. Louis Mallard reported in 1912 that some amines react with reducing carbohydrates to produce brown pigments. The condensation typically yields a simple glycosylamine, which then readily undergoes the Amadori rearrangement to produce 1 -amino-1 -deoxy-2-ketoses [95]. Reducing carbohydrates... [Pg.38]

Glycosuloses, 3-deoxy-, and the degradation of carbohydrates, 19, 181-218 Glycosylamines, 10, 95-168 Glycosyl azides, 16, 85-103 C-Glycosyl compounds, naturally occurring, 18, 227-258 20, 357-369 Glycosyl esters,... [Pg.532]

Elderfield, Roeert C., The Carbohydrate Components of the Cardiac Glycosides, I, 147-173 Ellis, G. P., and Honeyman, John, Glycosylamines, X, 95-168 Evans, Taylor H., and Hibbert, Harold, Bacterial Polysaccharides, II, 203-233... [Pg.515]

The stereoelectronic situation of anomerically bound substrates is decisively influenced by the exo anomeric effect. Lemieux et al. [14] have found that the rotation around the exocyclic C-O-bond of glycosides is strongly hindered. This observation is interpreted as a delocalization of the lone pair of the oxygen into the a of the ring-C1 -O6 bond of the carbohydrate. Analogous n-a delocalization sterically adjusts glycosylamine derivatives in a preferred conformation (Scheme 2). [Pg.104]


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See also in sourсe #XX -- [ Pg.1014 , Pg.1015 ]

See also in sourсe #XX -- [ Pg.1038 ]




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Glycosylamines

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