Covalently bound, polysaccharide-based chiral stationary phases

Details Covalently bound, polysaccharide-based chiral stationary phases Covalently bound, polysaccharide-based chiral stationary phases

1997-06-30

1998-09-22

Kunz, Gary L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536 187, 536 56, 5361231, 210635, 1061621, 10616271, 1062051, C12P 1926, G01N 33552, B01J 2010

Patent

active

058115323

ABSTRACT:
There are described stable, non-leaching chiral stationary phases in which a chiral polysaccharide or polysaccharide derivative is covalently bound through a spacer to the surface hydroxyl groups of a refractory inorganic oxide. The spacer molecules are omega-isocyanatoalkylene silanes. Favored refractory inorganic oxides are alumina and silica gel. Cellulose esters and cellulose phenyl carbamates are among the most favored of the chiral polysaccharides.

REFERENCES:
patent: 4619970 (1986-10-01), Okamoto et al.
patent: 4861872 (1989-08-01), Okamoto et al.
Y. Okamoto, J. Chromatog., 666 (1994), 403-19.
Y. Okamoto et al., J. Liq. Chromatog., 10 (1987), 1613-28.

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