Synthesis and Reactivity of the New Trimethylsilyl Esters of Aminomethylenebisorganophosphorus Acids.

The interaction of trimethylsilyl esters of trivalent organophosphorus acids containing PH and POSiMe3 fragments in the presence of trimethylsilyl trifluoromethanesulfonate as catalyst is proposed as a convenient method for the synthesis of new trimethylsilyl esters of aminomethylenebisorganophosphorus acids with three and four coordinated phosphorus. Also the new functionalized derivatives of the aminomethylenebisphosphinic acids with substituted hydroxymethyl moieties are synthesized, and some properties of the obtained compounds are presented.