反应详情

2.0 g (0.0161 mole) of 2,6-dimethyl-cyclohex-2-en-1-one, 50 ml of toluene, 1.8 g (0.024 mole) of 2-methoxyethylamine and 0.5 g of palladium on charcoal (5%) are heated with a starting pressure of 17 bars (7 bars propylene and 10 bars nitrogen) for 10 hours at 180° C. After cooling, the catalyst is filtered off and the filter residue is washed with ether and toluene. The solvent is evaporated off to leave 1.0 g of crude N-(2-methoxyethyl)-2,6-dimethylaniline, from which is obtained, by distillation in high vacuum, 0.4 g (13% of theory) of pure N-(2-methoxyethyl)-2,6-dimethylaniline; b.p. 61°-62° C./ 0.1 Torr.

1. temperatureAfter cooling
2. filtrationthe catalyst is filtered off
3. washthe filter residue is washed with ether and toluene
4. customThe solvent is evaporated off