Derivatives of chitins, chitosans and other polysaccharides

Details Derivatives of chitins, chitosans and other polysaccharides Derivatives of chitins, chitosans and other polysaccharides

C - Chemistry, Metallurgy

08

B

195/140, 260/210

C08B 37/08 (2006.01) A61K 31/70 (2006.01)

Patent

CA 1183482

ABSTRACT OF THE DISCLOSURE Derivatives have been formed from chitins and chitosans in which the amine residues on the polyglucosamine have been modified to 0 form the groups; (a) -N=CHR or -NHCH2R or IMAGE (b) -NHR' or Image (c) -NHR" or Image and, (d) -NH-CH2C02H or -NH-glyceryl where R is a substituent having a chelating function, R' is an aldose or ketose cr lactone residue, and R" is an organometallic aldehyde residue. These derivatives are useful in chelating metals, in pharmaceutical formulations, in cosmetics, in chromatographic separations, in enzyme imnmobilization, as catalysts, etc. Galactomannans having selected amine-containing side chains have also been prepared by reductive amination.

402854

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