反应详情

Ammonium persulphate (54.8 g) in water (150 ml) and 4-cyanobutyric acid (68 g) in water (300 ml) were added separately and simultaneously over 30 minutes to a mixture of 4-dimethylaminomethylpyridine (16.32 g), silver nitrate (4 g), water (200 ml) and concentrated sulphuric acid (25 ml) stirred at 80°. The reaction mixture was stirred at 80° for 1.5 hours, cooled, poured onto crushed ice (400 g) and aqueous ammonia (28% w/w, 200 ml). The solution was extracted with chloroform (900 ml) and the chloroform extracts were washed with dilute sodium hydroxide, dried over magnesium sulphate, and concentrated in vacuo to give 2-(3-cyanopropyl)-4-dimethylaminomethylpyridine (9 g) as a clear oil b.p. 110°-112°/0.1 mm Hg.

1. stirringThe reaction mixture was stirred at 80° for 1.5 hours
2. temperaturecooled
3. additionpoured
4. extractionThe solution was extracted with chloroform (900 ml)
5. washthe chloroform extracts were washed with dilute sodium hydroxide
6. dry with materialdried over magnesium sulphate
7. concentrationconcentrated in vacuo