Synthesis and pKa evaluation of model phosphonamidic, phosphonamidothioic, and phosphonamidodithioic acids

Article abstract of DOI:10.1016/0040-4020(96)00274-8

Select phosphonamidic acids were synthesized that vary in the stepwise replacement of the phosphoryl oxygens for sulfur. The pKa values and spectroscopic properties were briefly examined.