Some further reactions of phosphorus trichloride

In addition to the all-important reaction between phosphorus trichloride and alcohols (p. 45), attention is drawn to the following reactions of phosphorus. 

Phosphorus trichloride reacts with benzaldehyde according to the equation  

Phosphorus trichloride combines with olefins in the presence of diacetyl peroxide 

This provides an extension of Kharasch s work on free radical reactions, and Kharasch puts forward a free radical mechanism to explain the above. 

As already mentioned (p. 99) ethylene oxide reacts with phosphorus trichloride to give ultimately tri (2 Chloroethyl) phosphite, P(0CH2CH2C1)3. In a similar manner CeH50Pd2 and (CeH50)2PCl will give the corresponding mixed phosphite esters. 

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