2-Methylbenzenesulfonic acid → 4-(4-Hydroxybutyl)-1,2-dioxolane
Reaktionsgleichung
[CH2:1]([OH:9])[CH:2](O)[CH2:3][CH2:4][CH2:5][CH2:6][OH:7].[CH2:10]([O:12]COCC)C.C1(C)C(S(O)(=O)=O)=CC=CC=1>>[OH:7][CH2:6][CH2:5][CH2:4][CH2:3][CH:2]1[CH2:10][O:12][O:9][CH2:1]1Komponenten
4
Versuchsvorschrift
13.4 g of commercial 1,2,6-hexanetriol are added to 12.4 ml of diethoxymethane and the mixture is refluxed in the presence of 500 mg of toluenesulfonic acid acting as a transacetalisation catalyst. The ethanol is evaporated at 80° C. and the 4-(4-hydroxybutyl)-1,2-dioxolane obtained is purified by distillation. 7.3 g of this product and 4.6 g of epichlorhydrine are reacted in the presence of 2.8 g of potassium hydroxide (powder) and tetrabutylammonium chloride, to form the monomer 4-[(4-glycidyloxy)-butyl]-1,3-dioxolane