The intermoleculararomaticsubstitution of N,N-dialkylanilines and alkoxybenzenes with diazoesters is shown to proceed in the presence of catalytic amounts of both copper(II) salt and acid (Lewis or Brønsted). This method is a mild and rare metal-free C–C bond formation reaction between aromatic (sp2) and aliphatic (sp3) carbons.
The intermolecular aromatic substitution of N,N-disubstituted anilines with diazo esters is achieved under mild conditions in the presence of a catalytic amount of copper(II) triflate (up to 89 % yield). The scope and limitations regarding substrates, diazo esters, and ligands in this reaction are described.
N,N-二取代苯胺与重氮酯的分子间芳香取代是在温和条件下在催化量的三氟甲磺酸铜 (II) 存在下实现的(产率高达 89%)。描述了该反应中有关底物、重氮酯和配体的范围和限制。
Ru(II)-Pheox catalyzed N–H insertion reaction of diazoacetamides: synthesis of N-substituted α-aminoamides
An efficient protocol for the preparation of α-aminoamides was developed via the Ru(II)-dm-Pheox catalyzed N–H insertion reaction of various diazoacetamides with several amines, including aniline. This catalytic N–H insertion reaction was also applied to the synthesis of 2-(2-methylquinolin-4-ylamino)-N-phenylacetamide, a potential antileishmanial agent.