Phosphoric Acid → HCID 19438173, compound

Participants

Reaction Conditions

Reaction Steps

Into a 50 milliliter glass reactor equipped with a thermometer connected to a temperature controller, a heating mantle, a condenser and a magnetic stirring bar, is charged 5 gms (0.0164 mole) of tri-p-tolyl phosphine and 25 gms of toluene. The slurry is heated to 25° C., then 3 gms (0.0192 mole) of ethyl iodide is added. This reaction mass is heated to 60° C. and maintained for 14 hours, then cooled and the resulting phosphonium salt collected by filtration. After vacuum drying, there is obtained 6.85 gms of catalyst which has a melting point of 184°-187° C. and a chemical shift of 24.7 ppm (phosphoric acid reference).

Provenance & Evidence