Ligand-Free Pd-Catalyzed Double Carbonylation of Aryl Iodides with Amines to α-Ketoamides under Atmospheric Pressure of Carbon Monoxide and at Room Temperature
作者:Hongyan Du、Qing Ruan、Minghao Qi、Wei Han
DOI:10.1021/acs.joc.5b01249
日期:2015.8.7
A general Pd-catalyzed double carbonylation of aryl iodides with secondary or primary amines to produce α-ketoamides at atmospheric CO pressure has been developed. This transformation proceeds successfully even at room temperature and in the absence of any ligand and additive. A wide range of aryl iodides and amines can be coupled to the desired α-ketoamides in high yields with excellent chemoselectivities
Versatile Heterogeneous Palladium Catalysts for Diverse Carbonylation Reactions under Atmospheric Carbon Monoxide Pressure
作者:Marta Vico Solano、Greco González Miera、Vlad Pascanu、A. Ken Inge、Belén Martín-Matute
DOI:10.1002/cctc.201701439
日期:2018.3.7
carbonylation protocol usingheterogeneous Pd0 nanoparticles supported on the metal–organicframeworks (MOFs) MIL‐88B‐NH2 (Fe/Cr). The synthesis of a vast array of carbonyls, which includes amides, esters, carboxylic acids, and α‐ketoamides, was achieved through mono‐ and dicarbonylation reactions. The selectivity could be controlled simply by tuning the reaction conditions. Superior activity and selectivity
nBu<sub>4</sub>NI-Mediated oxidation of methyl ketones to α-ketoamides: using ammonium, primary and secondary amine-salt as an amine moiety
作者:Dan Wang、Kuan Zhang、Luhan Jia、Danting Zhang、Yue Zhang、Yujia Cheng、Chang Lin、Bo Wang
DOI:10.1039/c7ob00270j
日期:——
Presented here is the first example of synthesizing an array of primary-, secondary-, and tertiary-α-ketoamides with a non-metal catalyst nBu4NI from methylketones and inexpensive readily available amine/ammonium salts; the reactions proceeded smoothly under mild conditions, TBHP was used as an oxidant and the corresponding α-ketoamides were afforded in moderate to excellent yields.
这是从甲基酮和廉价的容易得到的胺/铵盐合成带有非金属催化剂n Bu 4 NI的一系列伯,仲和叔α-酮酰胺的第一个例子。在温和的条件下,反应平稳进行,使用TBHP作为氧化剂,并以中等至极好的收率提供了相应的α-酮酰胺。
Diverse Oxidative C(sp<sup>2</sup>)–N Bond Cleavages of Aromatic Fused Imidazoles for Synthesis of α-Ketoamides and <i>N</i>-(pyridin-2-yl)arylamides
An efficient and chemoselective C(sp(2))-N bond cleavage of aromatic imidazo[1,2-a]pyridine molecules is developed. A broad scope of amide compounds such as alpha-ketoamides and N-(pyridin-2-yl)arylamides are afforded as the final products in up to quantitative yields. Diverse C-N bond cleavages are controlled by the oxidative species used in this transformation, with various amide products afforded in a chemoselective fashion. A preliminary study indicated that some alpha-ketoamides exhibit anti-Tobacco Mosaic Virus activity for potential use in plant protection.