Visible-light-mediated direct access to α-ketoamides by dealkylative amidation of tertiary amines with benzoylformic acids
作者:Zhiguo Zhang、Fangnan Liu、Jingwen Chen、Kai Zhou、Zongbi Bao、Baogen Su、Qiwei Yang、Qilong Ren、Yiwen Yang
DOI:10.1016/j.tetlet.2019.151191
日期:2019.10
visible-light induced directamidation of benzoylformic acids with tertiary amines has been explored. Tertiary amines underwent N-dealkylative amidation with α-ketoacid in the presence of [IrdFCF3ppy}2(bpy)]PF6 and Cs2CO3, affording the corresponding α-ketoamides in good yields under mild conditions. This transformation exhibits a wide substrate scope and provides a facile synthetic approach to α-ketoamides
已经研究了可见光诱导的苯甲酰基甲酸与叔胺的直接酰胺化。叔胺在[Ir dFCF 3 ppy} 2(bpy)] PF 6和Cs 2 CO 3的存在下用α-酮酸进行N-脱烷基酰胺化反应,在温和条件下以良好的收率得到相应的α-酮酰胺。这种转化表现出广泛的底物范围,并为α-酮酰胺提供了一种简便的合成方法。
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
An effective green synthesis of α-ketoamides was developed for the first time in water via gold nanoparticles (AuNPs) catalyzedaerobicoxidative cross-dehydrogenative coupling of secondary amines with phenylglyoxals with a broad substrate scope.
Aryl-palladium-NHC complex: efficient phosphine-free catalyst precursors for the carbonylation of aryl iodides with amines or alkynes
作者:Chunyan Zhang、Jianhua Liu、Chungu Xia
DOI:10.1039/c4ob01878h
日期:——
aryl-palladium-NHC compounds was prepared according to the reported methods and their catalytic activity in the carbonylation of aryl iodides to synthesize α-keto amides and alkynones was examined. These practical aryl-palladium-NHC complexes have shown highly efficient catalyzed carbonylation and Sonogashira carbonylation reactions, with high turnover number in synthesis of α-keto amides (TON = 4300) and in synthesis
Mild gold-catalyzed aerobic dehydrogenative coupling of amines and phenylglyoxal derivatives
作者:Ying Shao、Zhuhong Wu、Chunbao Miao、Li Liu
DOI:10.1016/j.jorganchem.2014.05.017
日期:2014.9
A simple and efficient gold-catalyzed coupling of secondary amine with phenylglyoxalderivatives has been developed, which provides a practical synthetic strategy for the synthesis of substituted α-ketoamides under mild reaction conditions.