Copper-Catalyzed Cross-Dehydrogenative-Coupling Reaction of N-Arylglycine Esters with Imides or Amides for Synthesis of α-Substituted α-Amino Acid Esters
作者:Zhi-Qiang Zhu、Zong-Bo Xie、Zhang-Gao Le、Li-Jin Xiao、Dong Guo、Yue Lu
DOI:10.1055/s-0036-1591586
日期:2018.7
highly efficient cross-dehydrogenative-coupling (CDC) reaction between N-aryl glycine esters and imides or amides by the catalysis of a copper salt without the requirement of peroxide agents is described. The novel reaction provides a facile approach for the synthesis of α-substituted α-amino acid estersthrough C–H/N–H oxidative cross-coupling. A possible mechanism for the CDC reaction by using copper
A copper/O<sub>2</sub>-mediated direct sp<sup>3</sup> C–H/N–H cross-dehydrogen coupling reaction of acylated amines and <i>N</i>-aryl glycine esters
作者:Bin Sun、Yao Wang、Deyu Li、Can Jin、Weike Su
DOI:10.1039/c8ob00176f
日期:——
e coupling reaction between N-aryl glycine esters and acylated amines has been developed. The reaction proceeded effectively under an oxygen atmosphere without the use of peroxide agents. This simple protocol allows for the preparation of a series of newcompounds in a moderate to excellent yield via the CDC reaction of a wide range of N-aryl glycinederivatives with acylated amines, which are of great
A copper(II)-catalyzed oxidative reaction for the one-pot simultaneous synthesis of quinolines and gem-diamine derivatives from N-arylglycine ethyl esters and enamides is described. In this reaction, the two fragments in an enamide substrate react with the same intermediate generated in situ from an N-arylglycine ethyl ester, respectively, producing two products simultaneously. This reaction has the
Synthesis of New Racemic α,α-Diaminocarboxylic Ester Derivatives
作者:Mabrouk El Houssine、Elachqar Abdelrhani、Alami Anouar、El Hallaoui Abdelilah
DOI:10.3390/molecules15129354
日期:——
New racemic methyl or ethyl α-aminoglycinate derivatives were synthesized by N-alkylation of amines (aniline, 4-methylaniline, 2-methylaniline, 2,4-dimethoxyaniline, 2-nitroaniline, 4-chloro-2-fluoroaniline, 2-naphthylamine, benzylamine, N,N-dibenzylamine, and cyclohexylamine) with methyl or ethyl α-azidoglycinate.