Reaktion #68703

Reaktionsgleichung

diphenylphosphine

ethanol

potassium carbonate

ethyl iodide

→

diphenyl-diethyl-phosphonium iodide

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigethe ethanol was removed
2. 2
   workup.DISSOLUTIONThe product was then dissolved in chloroform
3. 3
   SonstigeThe chloroform was evaporated
4. 4
   Waschenthe solid washed with diethyl ether
5. 5
   Sonstigedried under vacuum

Vorschrift

50 g of diphenylphosphine were mixed with 150 ml of ethanol under nitrogen atmosphere. 37.12 g of potassium carbonate were then added to the mixture and the mixture was stirred. Finally, 125.73 g of ethyl iodide were added dropwise. After 48 hours at 50° C., the ethanol was removed. The product was then dissolved in chloroform. The chloroform was evaporated and the solid washed with diethyl ether and dried under vacuum. 98.45 g of diphenyl-diethyl-phosphonium iodide were obtained (98.5% wt. yield)

Quelle