404848-18-6Relevant articles and documents
Facile N-Derivatization of α-Amino Esters and Amides via Benzotriazolylmethyl Derivatives
Katritzky, Alan R.,Kirichenko, Nataliya,Rogovoy, Boris V.,He, Hai-Ying
, p. 9088 - 9092 (2007/10/03)
α-(N-Substituted amino)esters were prepared in a two-step procedure from available unsubstituted α-amino esters. α-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 α-amino esters in high overall yield under mild conditions with no signs of racemization. Boc-protected amino acids were converted into α-amino amides; subsequent deprotection allowed the conversion into N-substituted derivatives analogously to the α-amino esters, without racemization in high yields under mild conditions.
