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Synthesis 1989; 1989(7): 544-547
DOI: 10.1055/s-1989-27312
DOI: 10.1055/s-1989-27312
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Esterification of Amino Acids as Their 2,2-Bis(ethoxy-carbonyl)vinyl Derivatives
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Publication History
Publication Date:
17 September 2002 (online)
A method to protect the amino group of the amino acids using diethyl (ethoxymethylene)malonate is described. The resulting derivatives are easily esterified with different alkylation agents. Elimination of the N-protecting group with bromine in chloroform affords the hydrobromides of the amino acid esters.