Monosaccharides cyclic

Haworth representation, cyclic monosaccharides, 61-63 Hemiacetal groups disaccharides with, 149-150 without, 148-149 nomenclature, 122-123 oligosaccharides with, 153-154 without, 151-153... 

Mills depiction, cyclic monosaccharides, 63 Monosaccharides, see also Aldoses acid degradation, 457-459 alkaline degradation, 449-455 mechanisms, 451... 

Ring fusion methods, 145-146 Ring shape, notation, cyclic monosaccharides, 69 Ring size, cyclic monosaccharides, 59... 

Cyclic monosaccharides, having nitrogen or sulfur in the ring, 23, 115-232 Cyclitols, 14, 135-212 chemistry and configurations of, 3, 45-77... 

The following procedures have been arbitrarily chosen as representative of classic acetals extensively used as versatile starting materials for synthesis [102], It covers aspects of the chemistry of acyclic and cyclic monosaccharides and same disaccharides. Procedures from other laboratories have been reproduced from the original publication and their authors ate acknowledged. 

Acyclic compounds decompose in a manner less complicated than that of the cyclic monosaccharides because of elimination of such factors (affecting the spectrum) as size of the ring, and because of an even smaller effect of the stereochemical differences. For this reason, the use of acyclic derivatives is most reasonable when the molecular weight of the monosaccharide, the position and size of specific groupings (for example, the position of the deoxy unit or acetamido grouping), and the position of the carbonyl group are to be determined. 

A major drawback of cyclic Fischer projections is the unrealistic manner in which the structures are depicted. In 1929, Haworth designed a representation to address this deficiency. Haworth projections provide a simple way to represent cyclic monosaccharides with a three-dimensional perspective. The following process allows the conversion of a Fischer projection into a Haworth representation ... 

Drawing Cyclic Monosaccharides Cyclic hemiacetal structures may seem complicated at first glance, but they can be drawn and recognized by following the process illustrated in Figure 23-6. 

Paulsen, H., and Todt, K., Cyclic Monosaccharides Having Nitrogen or Sulfur in the Ring, 23, 115-232 Paulsen, H. See also, Heyns, K. 

Glycosidic linkage a C—O—C bond formed between the rings of two cyclic monosaccharides hy the elimination of water. (22.6)... 

CYCLIC MONOSACCHARIDES HAVING NITROGEN OR SULFUR IN THE RING ... 

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