New phosphonic analogs of aspartic and glutamic acid by aminoalkylation of trivalent phosphorus chlorides with ethyl acetyloacetate or ethyl levulinate and benzyl carbamate
New phosphonic analogs of aspartic and glutamic acid by aminoalkylation of trivalent phosphorus chlorides with ethyl acetyloacetate or ethyl levulinate and benzyl carbamate
Abstract Reaction of C-ethyl esters of phosphonic- and phosphinic acidanalogues of glutamic and aspartic acids with ethyl orthoformate provides the mixtures of N-formylamino- and N-ethoxymethyleneimino-derivatives with nearly quantitative yields. Scope and limitations of this procedure were studied by means of GC/MS technique.