Synthesis of α-Ketoamides from Aryl Methyl Ketones and N,N-Dimethylformamide via Copper-Catalyzed Aerobic Oxidative Coupling
作者:Qiuling Song、Mingxin Zhou
DOI:10.1055/s-0033-1339109
日期:——
Abstract A copper-catalyzedaerobicoxidativecoupling of aryl methyl ketones with N,N-dimethylformamide was developed, which afforded α-ketoamides by a sequence of dioxygen activation, C–H bond functionalization, and amide formation with N,N-dimethylformamide as the nitrogen source. Molecular oxygen was found to play a crucial role in this transformation. A copper-catalyzedaerobicoxidativecoupling of aryl
Direct use of formamides as amino group sources via C–N bond cleavage: a catalytic oxidative synthesis of α-ketoamides from acetophenones and formamides under metal-free conditions
作者:Qiong Zhao、Tao Miao、Xiaobin Zhang、Wei Zhou、Lei Wang
DOI:10.1039/c3ob27433k
日期:——
An efficient and direct use of formamides as amino group sources for the synthesis of α-ketoamides was developed under metal-free conditions. The reaction was based on the oxidative coupling of acetophenones with formamides and generated the desired products in good yields in the presence of t-BuOOH/I2/PhCO2H.
Cu(ii)-catalyzed decarboxylative acylation of acyl C–H of formamides with α-oxocarboxylic acids leading to α-ketoamides
作者:Dengke Li、Min Wang、Jie Liu、Qiong Zhao、Lei Wang
DOI:10.1039/c3cc41188e
日期:——
CuBr2-catalyzed decarboxylative acylation of the acyl CâH of N-monosubstituted and N,N-disubstituted formamides with α-oxocarboxylic acids leading to α-ketoamides was developed, which generated the corresponding products in good yields.
The syntheses of α-ketoamides via<sup>n</sup>Bu<sub>4</sub>NI-catalyzed multiple sp<sup>3</sup>C–H bond oxidation of ethylarenes and sequential coupling with dialkylformamides
作者:Bingnan Du、Bo Jin、Peipei Sun
DOI:10.1039/c4ob00520a
日期:——
The nBu4NI-catalyzed sequential C–O and C–N bond formation via multiple sp3C–H bond activation of ethylarenes, using N,N-dialkylformamide as the amino source, provided α-ketoamides with moderate yields.
所述Ñ卜4 NI -催化的顺序C-O和C-N键的形成通过多个SP 3 C-H键活化ethylarenes,采用Ñ,Ñ -dialkylformamide作为氨基源,提供α酮酰胺具有中等产率。
Double carbonylation of iodoarenes in the presence of a pyridinium SILP-Pd catalyst
immobilised on a supported ionic liquid phase (SILP) with adsorbed 1-butyl-4-methylpyridinium chloride, was investigated in aminocarbonylation reactions. Double carbonylation was found to be the main reaction using different iodoarenes and aliphatic amines as substrates. Application of anilinederivatives as nucleophiles led to the exclusive formation of substituted benzamides. The stabilisation effect