Reacción #3885

ord-93fa51c8f7084cf4905f1b5a5619a265

Ecuación de reacción

ClCCCBr
1-bromo-3-chloropropane
c1ccc(CN2CCNCC2)cc1
1-benzylpiperazine
CS(C)=O
dimethyl sulfoxide
[K+].[OH-]
potassium hydroxide
Cl.Cl.ClCCCN1CCN(Cc2ccccc2)CC1
1-benzyl-4-(3-chloropropyl)piperazine dihydrochloride
Rendimiento 163.9%

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Extracciónthe reaction product was extracted with ether
  2. 2
    Secadodried (magnesium sulfate)
  3. 3
    Otrothe salt was precipitated with ethereal hydrochloric acid

Procedimiento

31.5 g of 1-bromo-3-chloropropane were added to a mixture of 35 g of 1-benzylpiperazine, 150 ml of dimethyl sulfoxide and 25 g of potassium hydroxide. The resulting mixture was stirred at room temperature for 3 hours. Water was added to the resulting solution, the reaction product was extracted with ether, dried (magnesium sulfate), and the salt was precipitated with ethereal hydrochloric acid to give 35.6 g (55% of theory) of 1-benzyl-4-(3-chloropropyl)piperazine dihydrochloride as a white crystalline solid.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US04722926uspto-grants-1988_02