Reaktion #448895

Reaktionsgleichung

3-dimethylaminopropyl chloride

Sodium hydride

2-allyl-4-butoxyphenol

→

N,N-dimethyl-3-(2-allyl-4-butoxyphenoxy)propylamine

Ausbeute 78.7%

Lösungsmittel

toluene

toluene

Reaktionsbedingungen

Aufarbeitung

1. 1
   TemperaturThe reaction mixture was heated to reflux
2. 2
   Temperaturheating
3. 3
   Sonstigeevaporated
4. 4
   workup.DISSOLUTIONthe residue dissolved in water (10 ml)
5. 5
   ExtraktionThe resulting solution was extracted with ethyl acetate (4×15 ml)
6. 6
   Trocknendried (MgSO4)
7. 7
   Sonstigeevaporated
8. 8
   Sonstigeto give an oil which
9. 9
   Sonstigewas further purified by flash column chromatography on silica gel (Merck Art No 9385)
10. 10
    workup.ADDITIONa 50:50:0.1 mixture of ethyl acetate, hexane and triethylamine as eluent

Vorschrift

Sodium hydride (106 mg) was added to a solution of 2-allyl-4-butoxyphenol (500 mg) in toluene (40 ml). The reaction mixture was heated to reflux. A solution of 3-dimethylaminopropyl chloride (437 mg) in toluene (20 ml) was added to the refluxing reaction mixture and heating continued for a further 8 hours. The reaction mixture was cooled to ambient temperature, evaporated and the residue dissolved in water (10 ml). The resulting solution was extracted with ethyl acetate (4×15 ml). The ethyl acetate extracts were combined, dried (MgSO4) and evaporated to give an oil which was further purified by flash column chromatography on silica gel (Merck Art No 9385) using a 50:50:0.1 mixture of ethyl acetate, hexane and triethylamine as eluent to give N,N-dimethyl-3-(2-allyl-4-butoxyphenoxy)propylamine as yellow oil (556 mg); microanalysis, found: C, 74.5; H, 10.2; N, 4.8% C18H29NO2 requires: C, 74.2; H, 10.0; N, 4.8%; NMR([CD3 ]2SO): 0.91(3H,t), 1.42(2H,m), 1.65(2H,m), 1.82(2H,m), 2.15(6H,s), 2.38(2H,t), 3.27(2H,d), 3.88(4H,m), 5.2(2H,m), 5.92(1H,m), 6.7(2H,m) and 6.82(1H,m); m/z 292(M+H).

Quelle