Phenylphosphonic dichloride is used in the preparation of 2-phenyl-[1,3,2]dioxaphosphepane-2-oxide. Further, it acts as an effective reagent for the chlorinative dehydration of some heterocycles.
Purification Methods
Fractionally distil it using a very efficient or a spinning band column. [Lecher et al. J Am Chem Soc 76 1045 1954, NMR: Müller et al. J Am Chem Soc 78 3557 1956, Van Wazer et al. J Am Chem Soc 78 5715 1956, IR: Daasch & Smith Anal Chem 23 853 1951, Beilstein 16 IV 1074.]