Synthesis of some novel water-soluble chiral phosphines

Two individual (RR)- and (SS)-isomers of dipotassium 1,3-di[phenyl(carboxylato)methyl]-5-phenyl-1,3,5-diazaphosphorinane have been synthesized in the reaction of bis(hydroxymethyl)phenylphosphine, paraformaldehyde and the potassium salt of (R)- or (S)-α-phenylglycine.