Regioselective synthesis of ethoxylated glycoside esters using β-glucosidase in supersaturated solutions and lipases in organic solvents
Three ethoxylated glycosides, tetraethylene glycol β-D-glucoside, tetraethylene glycol β-D-xyloside, and methoxy triethyleneglycol β-D- glucoside, were prepared via almond β-glucoside-catalyzed (trans)glycosylation carried out in supersaturated solutions of glucose or p- nitrophenyl β-D-xyloside and the respective polyethylene glycols. The products were isolated and further modified by enzymatic e