US 2022/0356270 A1 · SILICON GLYCAN AND METHOD OF PREPARING SAME

Abstract

A silicon glycan is provided. The silicon glycan comprises a glycoside moiety, independently selected organosilicon moieties, and amide moieties joining the organosilicon moieties to the glycoside moiety. The glycoside moiety comprises independently selected saccharide moieties, which may be substituted with substituted or unsubstituted hydrocarbyl groups, ether moieties, and/or amine moieties. A method of preparing the silicon glycan is also provided. The method includes reacting (A) an aminoethyl polysaccharide and (B) an anhydride-functional organosilicon compound, to give the silicon glycan. The method may include preparing the aminoethyl polysaccharide (A) by reacting (A1) a hydroxyl-functional polysaccharide and (A2) an aziridinium halide compound to give the aminoethyl polysaccharide (A).

Claims20

Dependent claims

A silicon glycan having the formula:

where each A comprises an independently selected saccharide moiety;
each W is independently selected from the group consisting of an amide moiety and an imide moiety;
each Y comprises an independently selected organosilicon moiety;
each R is independently selected from substituted or unsubstituted hydrocarbyl groups, ether moieties, amine moieties, and H;
each R1 is independently selected from substituted or unsubstituted hydrocarbyl groups and H;
each Z is an independently selected ether moiety;
each subscript o is independently 0 or 1;
subscripts x and y are each independently from ≥0 to <1;
subscript z is from >0 to 1, with the proviso that x+y+z=1;
and moieties indicated by subscripts x, y, and z may be in randomized or block form in the silicon glycan.

7 more elements

Dependencies are inferred from the claim text.

Silicon glycan and method of preparing same

Life of this patent

Silicon glycan and method of preparing same

Life of this patent

Abstract

Claims20