Synthesis of amino alkyl substituted phosphonates by kabachnik-fields reaction

In order to find more efficient extracting agents with di functional group, seven amino alkyl substituted phosphonates were synthesized by Kabachnik-fields reaction. Their structures were elucidated on the basis of IR, MS,
¹
HNMR,
¹³
CNMR, and
^3l
PNMR spectral methods. Four of them are new compounds. Meanwhile, the reaction was reformed by using imine for the synthesis of N-monoalkyl substituted phosphonates.