反应详情

30 g (0.1 mol) of N-[2-(chroman-3-yl)ethyl]-N-(2-methoxycarbonylethyl)-amine hydrochloride are dissolved in 100 ml of methanol, and then 10.5 g (0.1 mol) of triethylamine and 5.84 g (0.11 mol) of acrylonitrile are added to the solution and the whole is stirred for 15 hours at room temperature. The reaction mixture is then concentrated under a water-jet vacuum, the residue is taken up in diethyl ether and the ethereal solution is washed neutral with ice-water. The ethereal phase is dried over potassium carbonate and concentrated by evaporation. N-[2-(chroman-3-yl)ethyl]-N-(2-cyanoethyl)-N-(2-methoxycarbonylethyl)amine is thus obtained in the form of a yellow oil.

1. concentrationThe reaction mixture is then concentrated under a water-jet vacuum
2. washthe ethereal solution is washed neutral with ice-water
3. dry with materialThe ethereal phase is dried over potassium carbonate
4. concentrationconcentrated by evaporation