in 1,4-dioxane; sodium hydroxide Kinetics; aq. NaOH; alkaline hydrolysis in aq. dioxane : NaOH (mole ratio 1:2) at 25°C;;

boric acid; toluene Entfernen des entstehenden Wassers;

CaH2 in cyclohexane byproducts: H2; react. under N2, slow addn. of the alcohol via syringe to B(OH)3 and CaH2, cooling in a water bath, slow heating to 80-90°C for 24 h after abating the H2 gas evolution; distn. of the volatile products under reduced pressure (distn. pot temp. <= 120°C), oily product;

130°C;