Anomeric effect overview

Diheterolevulosans, 209-211, 240 Dihexulose dianhydrides, 207 -266, see also Caramels Di-D-fructose dianhydrides 13C NMR spectra, 245-246 conformation, electronic control, 224-228 conformational rigidity, energetic outcomes, 228 hexulopyranose rings, 226 historical overview, 210-213 H NMR spectra, 248 -249 intramolecular hydrogen-bonds, 227 isomerization, 231 -232 1,2-linked, ero-anomeric effect, 224-225 listing, 240-241 nomenclature, 208-210 optical rotations and melting points, 242-243 protonic activation... [Pg.484]

Since the presentation of this lecture, Wolfe, Whangbo and Mitchell [Carbohydr. Res. (1979) 69, 1] have given an excellent overview of the anomeric effects, exo-anomeric effects, reverse anomeric effects and analyzed the C-X and C-Y bond lengths in XCH2YH molecules by a quantitative perturbational molecular orbital treatment... [Pg.26]

Glycomimetics, 468 Glycoproteins, biosynthesis, 486, 487 Glycosidases, 487, 491, 492 Glycoside synthesis, 381 anomeric selectivity, 382 challenges, 382 via electrochemistry, 385 via electron transfer, 385 inductive effects, 452 miscellaneous methods, 432 new glycosyl donors, 386 orthogonal, 452 overview, 381... [Pg.328]

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