β-Amino phosphonates are known to be useful in many biological processes1.While the methods for preparation of β-amino phosphonates are available in scarce.Here,we have made one of the most recent breakthroughs to construct the target product.Recently,we prepared a series of novel α-diazophosphonates derivatived2 from natural amino acids,and they could undergo the elimination of a molecular nitrogen under the catalysis of Pd-C in the present of alcohols.