反应详情

A 750 ml flask is charged with 6.7 g (50 mmol) of anhydrous aluminium chloride and 120.2 g (1 mol) of mesitylene. 148.7 g (1 mol) of 1-chloroctane are added dropwise to this mixture over 2 h at room temperature. HCl gas slowly evolves. The dark orange emulsion is stirred for c. 30 h at room temperature and then poured into water and extracted with toluene. The organic phase is isolated and concentrated on a rotary evaporator. The resultant oil is fractionated under vacuum to give, at 88°-92° C. and 1.8 mbar, 80.6 g of the title product as a colourless liquid. Gas chromatography (GC) and 1H-NMR spectrum analysis show that mono-n-octylmesitylene is obtained in 90% purity. The distillation residue contains mainly dioctylmesitylene.

1. extractionextracted with toluene
2. customThe organic phase is isolated
3. concentrationconcentrated on a rotary evaporator
4. customto give, at 88°-92° C.