Facile N-Derivatization of α-Amino Esters and Amides via Benzotriazolylmethyl Derivatives
作者:Alan R. Katritzky、Nataliya Kirichenko、Boris V. Rogovoy、Hai-Ying He
DOI:10.1021/jo026622f
日期:2003.11.1
Alpha-(N-substitutedamino)esters were prepared in a two-step procedure from available unsubstituted alpha-amino esters. alpha-Amino esters are first converted into the corresponding N-benzotriazolylmethyl derivatives; in the second step, the benzotriazole group is substituted by various nucleophiles with or without the presence of a Lewis acid to give substituted alpha-amino esters in high overall