反应详情

Hexahydro-3-(3-methoxyphenyl)-1-methyl-2H-azepin-2-one (4.66 g) in dry toluene (25 ml) was added dropwise to a stirred suspension of sodium amide (1.0 g) in dry toluene (50 ml). The reaction mixture was heated to reflux, ammonia was evolved and the reaction mixture became red. After refluxing for 2 hours dry tetrahydrofuran (20 ml) was added, the mixture cooled and ethyl iodide (3.7 g) added. A white precipitate was formed and the red colour rapidly disappeared. The reaction mixture was heated under reflux for 2 hours, cooled and decomposed by the addition of water. The aqueous phase was separated and the organic layer washed with saturated sodium chloride solution, dried over anhydrous magnesium sulphate and evaporated affording an oil which crystallised from diisopropyl ether to give the title compound (3.29 g), m.p. 62°-64° C.

1. temperatureThe reaction mixture was heated
2. temperatureto reflux
3. additionwas added
4. temperaturethe mixture cooled
5. customA white precipitate was formed
6. temperatureThe reaction mixture was heated
7. temperatureunder reflux for 2 hours
8. temperaturecooled
9. customThe aqueous phase was separated
10. washthe organic layer washed with saturated sodium chloride solution
11. dry with materialdried over anhydrous magnesium sulphate
12. customevaporated
13. customaffording an oil which
14. customcrystallised from diisopropyl ether