Hydrogen Peroxide → Dihydroxy terephthalate
Reaktionsgleichung
C[O:2][C:3](=O)[C:4]1[CH:13]=[CH:12][C:7]([C:8]([O:10]C)=[O:9])=[CH:6][CH:5]=1.[OH:15][OH:16].CS(O)(=O)=[O:19]>>[C:8]([O:10][OH:19])(=[O:9])[C:7]1[CH:12]=[CH:13][C:4]([C:3]([O:15][OH:16])=[O:2])=[CH:5][CH:6]=1Komponenten
4
Versuchsvorschrift
10 g (51.5 m mols) terephtalic acid dimethylester was dissolved in 100 g methane-sulfonic acid under agitation at room temperature. The solution was cooled to 15° C., whereupon 15 g (0.309 mol) 70% hydrogen peroxide was added by drops under agitation. The temperature was increased and kept at 50° C. for 2 hours. The product was cooled to 0°-10° C., whereupon the solid particles were filtered off, washed with 4×30 ml ice-water and dried in a desiccator until constant weight.
Aufarbeitung
- additionwas added by drops under agitation