A simple and efficient method for the synthesis of α-ketothioamides via the Willgerodt–Kindlerreaction is developed. Reactions were carried out between arylglyoxal hydrates, amines and elemental sulfur in water at 80°C to afford corresponding α-ketothioamides in good to high yields in a short reaction time.
synthetic pathway, and particularly of the phosphoglycerate dehydrogenase (PHGDH), the first enzyme of the pathway, to sustain cancer progression. Yet, because of very weak potencies usually in cell-based settings, the inhibitors reported so far failed to lay ground on the potential of this approach. In this paper, we report a structure-activity relationship study of a series of α-ketothioamides that we
Direct synthesis of α-ketothioamides from aryl methyl ketones and amines via I2-promoted sp3 C–H functionalization
作者:Hong-Zheng Li、Wei-Jian Xue、An-Xin Wu
DOI:10.1016/j.tet.2014.05.045
日期:2014.8
A domino reaction that involves the formation of CS and C–N bonds in one process via sp3 C–H functionalization strategy has been developed. This reaction affords an efficient and direct method for the synthesis of α-ketothioamides fromaryl methyl ketones, amines, and sodium hydrosulfide under the promotion of iodine.
Methyl ketone break-and-rebuild: a strategy for full α-heterofunctionalization of acetophenones
作者:Thanh Binh Nguyen、Pascal Retailleau
DOI:10.1039/c7gc02558k
日期:——
The Willgerodtreaction under iron-catalyzed aerobic conditions was found to be an excellent tool for full α-heterofunctionalization of acetophenones with sulfur and amines. Via this break-and rebuild strategy, a wide range of thioglyoxamides was synthesized in a four-component, highly atom-, step- and redox-economical manner with water as the only by-product.
Metal-Free C–N or C–C Bond Cleavages of α-Azido Ketones: An Oxidative-Amidation Strategy for the Synthesis of α-Ketothioamides and Amides
作者:Pei Yu、Yuwei Wang、Zhigang Zeng、Yunfeng Chen
DOI:10.1021/acs.joc.9b01777
日期:2019.11.15
α-azido ketones with elemental sulfur could form α-ketothioacyl azide, which was then nucleophilically attacked by amines, causing the cleavage of the C-N bond to afford α-ketothioamides, while amides could be formed with the release of nitrogen gas and cyano anion in the presence of PhI(OAc)2 by selective C-C bond cleavage.