Synthesis of the new types of N‐substituted aminomethylenebisorganophosphorus acids and their derivatives

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The interaction of esters of trivalent organophosphorus acids containing PH and POSiMe3 fragments with various derivatives of formamide is proposed as convenient methods for the synthesis of new N‐substituted aminomethylenebisorganophosphorus acids and their derivatives with three‐, four‐, and five‐coordinated phosphorus. Also the new functionalized derivatives of the new aminomethylenebisphosphinic acids with substituted hydroxymethyl moieties are synthesized, and some properties of the obtained compounds are presented.