Reaktion #640529

Reaktionsgleichung

1-chloro-3-(triphenylphosphanylidene)-propane-2-one

benzaldehyde

→

title compound

1-Chloro-4-phenyl-but-3-en-2-one

Lösungsmittel

toluene

Reaktionsbedingungen

Aufarbeitung

1. 1
   Temperaturis heated
2. 2
   Temperaturat reflux for 20 hours
3. 3
   SonstigeEvaporation to dryness
4. 4
   Sonstigeyields a mixture

Vorschrift

A mixture of 1-chloro-3-(triphenylphosphanylidene)-propane-2-one (2.8 g, 7.9 mmol) and freshly distilled benzaldehyde (0.7 g, 6.6 mmol) in toluene (10 ml) is heated at reflux for 20 hours. Evaporation to dryness yields a mixture containing the title compound that is used in the subsequent step without purification.

Quelle