An Efficient Synthesis of Nα-Protected Amino and Peptide Acid Aryl Amides via Iodine-Mediated Oxidative Acylation of Nα-Protected Amino and Peptide Thioacids
Abstract Thioacids derived from N-protected amino or dipeptide and tripeptide acids undergo facile N-acylation with aromatic amines to afford N-protected amino or peptide aryl amides in good to excellent yields and enantiopurities. The method also furnishes difficult-to-prepare N-Fmoc amino acid 4-nitroanilides in good yields. This simple oxidative Nα-acylation of thioacids with aromatic amines proceeds
A Convenient Synthesis of Amino Acid Arylamides Utilizing Methanesulfonyl Chloride and N-Methylimidazole
作者:Weicheng Zhou、Liguang Mao、Zhenyu Wang、Yongjia Li、Xiqian Han
DOI:10.1055/s-0030-1259099
日期:2011.1
N-Cbz-protected amino acids reacted with various arylamines in the presence of methanesulfonyl chloride and N-methylimidazole in dichloromethane to give the corresponding arylamides in high yields. No obvious racemization was observed under the mild conditions.
An Efficient and Epimerization Free Synthesis of C-Terminal Arylamides Derived from α-Amino Acids and Peptide Acids via T3P Activation
作者:Chilakapati Madhu、Panguluri NageswaraRao、N. Narendra、Vommina V. Sureshbabu
DOI:10.1007/s10989-013-9383-7
日期:2014.9
A high yield and rapid synthesis of enantiomerically pure N α-protected amino/peptideacid arylamides using n-propylphosphonic anhydride (T3P) in presence of N-methylmorpholine is described. The generality of the reaction has been studied for various N α-protected amino acids with diverse range of aromatic amines and coumarin derivatives.