Organophosphorus compounds are important both in living systems as well as in commercial applications such as pesticides, fungicides, fire retardants and lubricants. Alkyl/aryl phosphonates/phosphates are also important for the synthesis of various bioactive compounds 1 serving as natural products, phosphates, phosphonopeptides, amino acid analogues, prodrugs, pharmacological agents and as important synthetic precursors. 1, 2, 3, 4, 5, 6 ...