Reaktion #1787921

ord-32081e3fe8194e909a382df5a9f989c8

Lösungsmittel

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    Temperaturwas refluxed for 12 hours
  2. 2
    SonstigeUnder reduced pressure, the solvent was evaporated
  3. 3
    Sonstigethe resulting crystals were recrystallized from ethanol

Vorschrift

A mixture of 6-(2-chlorophenyl)-3-methyl-2-(2-phenylethyl)-4,5,6,7-tetrahydroindazol-4-one (0.20 g), aminoguanidine hydrochloride (0.073 g), concentrated hydrochloric acid (0.14 ml), water (0.14 ml) and ethanol (15 ml) was refluxed for 12 hours. Under reduced pressure, the solvent was evaporated, and the resulting crystals were recrystallized from ethanol to give 6-(2-chlorophenyl)-4-guanidinoimino-3-methyl-2-(2-phenylethyl)-4,5,6,7-tetrahydroindazole hydrochloride (Compound 152) (0.17 g) as colorless crystals.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US06350749B1uspto-grants-2002_02