Lj. Hasbrouck et al., ORIGIN OF THE OXYGEN IN THE OXIDATION OF TRIPHENYLPHOSPHINE BY POTASSIUM PERPHOSPHATE, Inorganica Chimica Acta, 258(1), 1997, pp. 123-125
The oxidation reaction of triphenylphosphine with potassium perphospha
te (peroxodiphosphate) in 75% aqueous acetonitrile was studied in the
presence of [O-18] water in order to ascertain the origin of the oxyge
n in the triphenylphosphine oxide. The O-18 isotope shift in P-31 NMR
spectroscopy was used to analyze the reaction. The data indicate that
perphosphate is the origin of the oxide oxygen.