CHIRAL BINUCLEAR METAL COMPLEXES FOR STEREOSELECTIVE HYDROLYSIS OF SACCHARIDES AND GLYCOSIDES

    公开(公告)号:US20210101138A1

    公开(公告)日:2021-04-08

    申请号:US17118796

    申请日:2020-12-11

    发明人: SUSANNE STRIEGLER

    摘要: Disclosed herein is a class of chiral binuclear metal complexes for stereoselective hydrolysis of saccharides and glycosides, and more particular chiral binuclear transition metal complex catalysts that discriminate epimeric glycosides and α- and β-glycosidic bonds of saccharides in aqueous solutions at near physiological pHs. The chiral binuclear metal complexes include a Schiff-base-type ligand derived from a chiral diamino building block, and a binuclear transition metal core, each which can be varied for selectivity. The metal core is a Lewis-acidic metal ion, such as copper, zinc, lanthanum, iron and nickel. The Schiff-base may be a reduced or non-reduced Schiff-base derived from aliphatic linear, aliphatic cyclic diamino alcohols or aromatic aldehydes. The ligand can be a penta- or heptadentate ligand derived from pyridinecarbaldehydes, benzaldehydes, linear or cyclic diamines or diamino alcohols.