potassium tert-butylate in 1,4-dioxane 72 h; regioselective reaction;

potassium tert-butylate in 1,4-dioxane 72 h; regioselective reaction;

1: diisopropylidene-Gal-OH With potassium tert-butylate in 1,4-dioxane 1 h; 2: methyl 4,6-O-benzylidene-β-D-galactopyranoside 2,3-di-O-p-toluenesulfonate in 1,4-dioxane 72 h;