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Acidic hydrolysis of glycosides

H. H. Jensen, L. Lyngbye, and M. Bols, A free-energy relationship between the rate of acidic hydrolysis of glycosides and the pKa of isofagomines, Angew. Chem. Int. Ed., 40 (2001) 3447-3449. [Pg.285]

Intensive investigation on the mechanism of acid hydrolysis of glycosides has led to the conclusion that it is the glycosidic oxygen atom which is protonated.198 In view of these findings and of the highly unstable nature... [Pg.475]

Hphe molecular mechanism of acid hydrolysis of glycosides is rather well understood today, much confusion being resolved now by the achievements of conformational analysis of carbohydrates (1,2). With regard to the three consecutive steps of reaction (cf. Figure 1)—Le., the formation of a conjugate acid by protonation of either one of the acetalic... [Pg.130]

Figure 1. Mechanism of acid hydrolysis of glycosidic bonds (compare... Figure 1. Mechanism of acid hydrolysis of glycosidic bonds (compare...
The overall rate law of homogeneous acid hydrolysis of glycosides is given by... [Pg.131]

The acidic hydrolysis of glycosidic bonds is of importance in many technical processes based on wood as raw material. Figure 2-30 illustrates the... [Pg.41]

Mechanistic studies on acid hydrolysis of glycosides often encounter the endolexo-cycWc cleavage problem [13]. For instance, the sulfuric acid (l%)-catalyzed acetolysis of the... [Pg.377]

In the acid hydrolysis of glycosides, the same evidence is available. Lack of racemization of an optically active alcohol as the aglycon is apparent... [Pg.30]

It should be pointed out that Holl6 and Szejtli concluded that the acid hydrolysis of glycosidic linkages in starch is bimolecular (A-2) on the basis of thermodynamic data, but that this is not a universally accepted conclusion. [Pg.88]

Lucenin-1 has the same ultraviolet absorption spectrum as that of luteolin and orientin, and shows the same diagnostic shifts it gives no sugar under conditions normal for the acid hydrolysis of glycosides, and... [Pg.366]

N. Roy and T. E. Timell, Acid hydrolysis of glycosides VIII. Sythesis and hydrolysis of three aldotriuronic acids, Carbohydr. Res., 6 (1968) 475-481. [Pg.204]

Acid hydrolysis of glycosides and prosapogenins on TLC plate and identification of the resulting monosccharides. See previous paper[4]. [Pg.170]

Dee KK, Timell TE (1967) The acid hydrolysis of glycosides HI. Hydrolysis of O- methylated glucosides and disaccharides. Carbohydr Res 4 72-77... [Pg.83]

Timell TE (1964) The acid hydrolysis of glycosides I. General conditions and the effect of the nature of the aglycone. Can J Chem 42 1456-1472... [Pg.83]

See other pages where Acidic hydrolysis of glycosides is mentioned: [Pg.433]    [Pg.40]    [Pg.131]    [Pg.147]    [Pg.601]    [Pg.84]    [Pg.27]    [Pg.135]    [Pg.160]    [Pg.169]    [Pg.25]    [Pg.152]    [Pg.61]    [Pg.200]    [Pg.285]    [Pg.204]    [Pg.83]    [Pg.886]    [Pg.550]    [Pg.553]    [Pg.27]    [Pg.88]   
See also in sourсe #XX -- [ Pg.118 ]



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Acid catalysis of glycoside hydrolysis

Acid-Catalysed Hydrolysis of Glycosides

BeMiller, J. N., Acid-catalyzed Hydrolysis of Glycosides

Glycosides acid hydrolysis

Glycosidic acids

Glycosidic hydrolysis

Hydrolysis acid-catalyzed, of glycosides

Intermolecular General Acid Catalysis of Glycoside Hydrolysis

Intramolecular General Acid Catalysis of Glycoside Hydrolysis

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