Synthesis of N-t-Butyl-N'-Aminocarbonyl-N-(Substituted) Benzoylhydrazine Containing α-Aminoalkylphosphonate Groups

A variety of novel N-t-butyl-N'-aminocarbonyl-N-(substituted)benzoylhydrazines containing α-aminoalkylphosphonate groups were synthesized by the addition of N-t-butyl-N-(substituted)benzoylhydrazines to α-isocyanatoalkylphosphonates, which were synthesized by the reaction of α-aminoalkylphosphonates with triphosgene in good yields. The structures of products including by-products were confirmed by ¹H NMR, ³¹P NMR, IR, mass spectroscopy, and elemental analysis.