反应详情

A mixture of 50 g (0.367 mol) of 2,3,6-trimethylphenol, 55 g (0.4 mol) of potassium carbonate and 36 ml (0.38 mol) of dimethylsulphate in 500 ml of acetonitrile was heated under reflux overnight. 35 ml of conc. aqueous ammonia was then added, and the mixture refluxed for 1 hour. After filtration and evaporation, the residue was taken up in ether and washed twice with NaOH-solution and twice with NaHCO3 -solution. Drying (MgSO4) and evaporation gave 50.8 g (92%) of the product.

1. temperaturewas heated
2. temperatureunder reflux overnight
3. temperaturethe mixture refluxed for 1 hour
4. filtrationAfter filtration and evaporation
5. washwashed twice with NaOH-solution and twice with NaHCO3 -solution
6. customDrying
7. custom(MgSO4) and evaporation