Toluene → 1,2-Dodecanediol Borate

Reaktionsgleichung

[CH2:1]([OH:14])[CH:2]([OH:13])[CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH3:12].C1(C)C=CC=CC=1.[B:22]([OH:25])([OH:24])[OH:23]>O>[B:22]([OH:25])([OH:24])[OH:23].[CH2:1]([OH:14])[CH:2]([OH:13])[CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH3:12]

Komponenten

Versuchsvorschrift

Approximately 151 g of 1,2-dodecanediol and ~150 g of toluene were charged to a 1 liter reactor equipped with agitator, heater and Dean-Stark tube with condenser and provision for using a nitrogen vapor space blanket. The contents were heated up to ~75° C., and 45 g of boric acid was added. The mixture was heated up to 155° C. over a period of ~5 hours until water evolution stopped. The solvent was removed by vacuum distillation and the product was filtered hot through diatomaceous earth. The product was a viscous, clear yellow fluid.