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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, 1HNMR, 13CNMR, and 3lPNMR spectral methods. Four of them are new compounds. Meanwhile, the reaction was reformed by using imine for the synthesis of N-monoalkyl substituted phosphonates.