Reaktion #75395

ord-7c3769ac7cc947aca77924770f7da1d2

Lösungsmittel

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    TemperaturAfter cooling
  2. 2
    Extraktionextracted with water
  3. 3
    SonstigeThe organic phase was evaporated
  4. 4
    workup.DISSOLUTIONthe residue was dissolved in acetone
  5. 5
    SonstigeThe dihycrochloride was precipitated from the acetone solution with ethereal hydrochloric acid

Vorschrift

2.8 gm of 7,7-dimethyl-2-phenethyl-5-(2-chloro-ethyl)-5H,7H-imidazo[4,5-h]isoquinoline-4,6-dione were heated at 150° C. for 40 minutes with 5 ml of 2-(3,4-dimethoxy-phenyl)-ethylamine. After cooling, the mixture was dissolved in ether, and the solution was several times extracted with water weakly acidified with acetic acid. The organic phase was evaporated, and the residue was dissolved in acetone. The dihycrochloride was precipitated from the acetone solution with ethereal hydrochloric acid.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US04176184uspto-grants-1979_11