反应详情

Manufacture of the starting material: A solution of 484 g (4 mole) of 2,6-xylidine and 490 g (2 mole) of p-toluenesulphonic acid-(1-methoxyprop-2-yl)-ester in 1000 ml of toluene is refluxed for 25 hours. The reaction mixture is cooled, then made alkaline and diluted with ether. The organic phase is repeatedly washed with water and dried with magnesium sulphate. Evaporation of the solvent and subsequent distillation of the residue yields the desired N-(1-methoxyprop-2-yl)-2,6-xylidine with a boiling point of 70°-72° C/0.4 Torr.

1. temperatureThe reaction mixture is cooled
2. washThe organic phase is repeatedly washed with water
3. dry with materialdried with magnesium sulphate
4. customEvaporation of the solvent and subsequent distillation of the residue