Reacción #457701

Ecuación de reacción

1-Amino-3-chloropropane hydrochloride

2,3-Lutidine

sodamide

ammonia

→

4-(3-methyl-2-pyridyl) butylamine

Disolventes

water

Condiciones de reacción

Tratamiento posterior

1. 1
   OtroAny liquid ammonia lost through evaporation
2. 2
   OtroAfter 2 hours the reaction was quenched by the addition of ammonium chloride (120 g)
3. 3
   workup.WAITthe reaction mixture was left
4. 4
   Otrothrough evaporation
5. 5
   OtroThe residue so obtained
6. 6
   Extracciónextracted with dichloromethane
7. 7
   SecadoThe extracts were dried (Na2SO4)
8. 8
   Otrothe dichloromethane removed by evaporation
9. 9
   workup.DISTILLATIONthe residue distilled in vacuo

Procedimiento

2,3-Lutidine (321 g) was added with stirring to a solution of sodamide (351 g) in liquid ammonia (3 1). 1-Amino-3-chloropropane hydrochloride (429g) was added to this mixture over 8 minutes with stirring. Any liquid ammonia lost through evaporation was replaced. After 2 hours the reaction was quenched by the addition of ammonium chloride (120 g) and the reaction mixture was left to stand overnight to allow substantially complete escape of ammonia through evaporation. The residue so obtained was diluted with water (2 1) and extracted with dichloromethane. The extracts were dried (Na2SO4), the dichloromethane removed by evaporation and the residue distilled in vacuo to give 4-(3-methyl-2-pyridyl) butylamine (306.6 g).

Fuente