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.
Metal free synthesis of α-keto amides from 2-hydroxy acetophenones through domino alcohol oxidation–oxidative amidation reaction
作者:Surya Srinivas Kotha、Govindasamy Sekar
DOI:10.1016/j.tetlet.2015.09.053
日期:2015.11
An efficient method for the synthesis of α-ketoamides using 2-iodoxybenzoic acid (IBX) promoted dominoalcoholoxidation and oxidativeamidation reaction sequence between 2-oxoalcohols and amines under metal-free conditions is developed. In this protocol, IBX is used as an oxidizing agent to synthesize the α-ketoamides, which makes this methodology highly efficient, practical, and environmentally
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.
Predicting hydration propensities of biologically relevant α-ketoamides
作者:Henry B. Wedler、Teresa A. Palazzo、Ryan P. Pemberton、Christian S. Hamann、Mark J. Kurth、Dean J. Tantillo
DOI:10.1016/j.bmcl.2015.08.010
日期:2015.10
Quantum chemical calculations coupled to experiments were used to predict covalent hydration propensities of biologically relevant alpha-ketoamides. Experimentally determined hydration equilibrium constants for related ketones and aldehydes were compared to computationally determined values to develop a method for predicting hydration equilibrium constants. This method was used on six newly synthesized alpha-ketoamides to experimentally verify computational predictions. A correlation between calculation and experiment was observed and applied to models of several pertinent APIs. Our results indicate that the keto form is favored for practically all alpha-ketoamides in biological environs. (C) 2015 Elsevier Ltd. All rights reserved.