Phosphorus pentachloride → 1-Acetyl-3-(1-chloro-1-phenyl-methylidene)-2-indolinone

Beteiligte Stoffe

Reaktionsschritte

5.6 g (20 mmol) of 1-acetyl-3-(1-hydroxy-1-phenyl-methylidene)-2-indolinone are suspended in 45 ml of toluene and while cooling with ice combined with 4.2 g (20 mmol) of phosphorus pentachloride and then stirred for 18 hours at ambient temperature. The precipitate formed after cooling with ice is suction filtered and dried.

Herkunft & Nachweise