Reaktion #1787869

Reaktionsgleichung

5-(2-chlorophenyl)-2-(1-hydroxyethylidene)cyclohexane-1,3-dione

phenylhydrazine

→

6-(2-chlorophenyl)-3-methyl-2-phenyl-4,5,6,7-tetrahydroindazol-4-one

Ausbeute 76.2%

Lösungsmittel

ethanol

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeUnder reduced pressure, the solvent was evaporated
2. 2
   Sonstigethe resulting crystals were recrystallized from ethyl acetate-hexane

Vorschrift

A solution of 5-(2-chlorophenyl)-2-(1-hydroxyethylidene)cyclohexane-1,3-dione (1.0 g) and phenylhydrazine (0.43 g) in ethanol (20 ml) was refluxed for 2 hours. Under reduced pressure, the solvent was evaporated, and the resulting crystals were recrystallized from ethyl acetate-hexane to give 6-(2-chlorophenyl)-3-methyl-2-phenyl-4,5,6,7-tetrahydroindazol-4-one (0.97 g) as colorless crystals.

Quelle