Michael‐Type Addition of Diethyl Phosphoramidate to α,β‐ Unsaturated Esters.

Abstract Michacl-type addition of diethyl phosphoramidate to α,β-unsaturated esters occurs when the reactants are refluxed in toluene or xylene with an excess of potassium carbonate in the presence of tetrabutyl-ammonium bromide (TBABr). Dephosphorylation of methyl and ethyl acrylate adducts leads to the respective β-alanine esters.