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Synthesis 1992; 1992(3): 285-287
DOI: 10.1055/s-1992-26093
short paper
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Efficient, Racemization-Free Amidation of Protected Amino Acids

Csaba Somlai* , Gyula Szókán, Lajos Baláspiri
  • *Szent-Györgyi Albert Medical University of Szeged, Institute of Medical Chemistry, Dóm-tér 8, H-6720 Szeged, Hungary
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Publikationsdatum:
17. September 2002 (online)

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N-tert-Butoxycarbonyl derivatives of L-leucine, S-benzyl-L-cysteine and Nt-(2,4-dinitrophenyl)-L-histidine were amidated with crystalline ammonium, methylammonium, and ethylammonium salts of 3-hydroxy-1,2,3-benzotriazin-4(3H)-one and N-hydroxysuccinimide to give the corresponding amino acid amides in good yield and with good optical purity.