Phenol-carbohydrate

Phenol-carbohydrate derivatives, in higher plants, 20, 371-408 Photochemistry, of carbohydrates, 18, 9-59 Physical chemistry, of carbohydrates, 15, 11-51 of starch, 11, 335-385 Physical properties, of solutions of polysaccharides, 18, 357-398... 

Pridham, J. B., Phenol-Carbohydrate Derivatives in Higher Plants, 20, 371-408... 

A)J.P.Gray,USP 1438759(1922) St CA 17,882 (1923)(Rosin 2-12% is added to BkPdr as retarder) B)Lignosa S.Akcyjna.FrP 641442 (1927) CA 23,1272(1929)(Charcoal in BkPdr is replaced by hydrocarbons such as C10Hg sulfo acids of C10Hg or phenols, nitrosulfo acids of phenols, nitrosulfo acids of phenols. Carbohydrates, such as cellulose, starch or sawdust also may be used) C)Dynamit A—G, PhrNaoum... 

This chapter reports work on two aspects of this adhesive system 1) tests on the strength of panels bonded with phenol/carbohydrate/urea/formaldehyde (P/C/U/F) adhesive compositions outside the ranges previously reported (9,10) and 2) analysis of chemical reactions in this resin system. 

Phenol/carbohydrate/urea/formaldehyde resin with molar ratios of 1 1 0.125 2, 2.09 Pa-s viscosity, bonded between two parallel-laminated yellow birch veneers for 5 minutes. 

Scheme 2-9. Semisynthetic modifications of vancomycin-type glycopeptide antibiotics, (a) Alterations and modifications of amino acids, (b) Attachment of molecules to the amino groups, to the carboxy groups, and to phenolic carbohydrate functionalities. Similar modifications have been performed for antibiotics of the teicoplanin-type.

Tsutsumi, H, Ishido, Y, Partial protection of carbohydrate-derivatives. 5. Synthesis of phenyl D-glucopyranosides nucleophilic-substitution of 0-(2,3,4,6-tetra-0-henzyl-D-glucopyranosyl)-pseudoureas by phenols, Carbohydr. Res., 88, 61-75, 1981. 

As indicated before, the distribution of carbon in humic substances is often determined as part of a proximate analysis in which soluble phenols, carbohydrates, lipids, and lignins are removed by acid hydrolysis or selective solvation to obtain data of the type presented in Table 9. Perhaps a less... 

A complete catalog of the many, naturally occurring, phenol-carbohydrate derivatives is not intended and, indeed, would be out of the question in an article of this type. Comprehensive lists of these compounds, and a discussion of their chemistry, may be found in publications by Mcllroy, Karrer, Stoll and Jucker, Geissman, and Dean. An attempt will be made, however, to describe the principal carbohydrates found in combination with phenols, and to draw attention to the structural diversity within this group of compounds and the interesting biochemistry involved, In addition, the special methods used for the elucidation of the structures of combined carbohydrates will be discussed. 

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