An unprecedented class of atropisomers based on Ugi reaction that exhibit exceptional rotational barrier is reported. The versatility of our approach enables the synthesis of atropisomers “by design” and allow the conceptualization of this work in atroposelective synthesis and high-sensitivity modular balances. Single-crystal structures, combined by DFT calculations and dynamic NMR allow us to examine
据报道,基于 Ugi 反应的前所未有的一类阻转异构体表现出特殊的旋转势垒。我们方法的多功能性使得能够“按设计”合成阻转异构体,并允许在阻转选择性合成和高灵敏度模块平衡中概念化这项工作。单晶结构结合 DFT 计算和动态 NMR,使我们能够检查大量的 π 相互作用。
10.1002/ejoc.202400581
作者:Fragkiadakis, Michael、Fotopoulou, Eirini、Froudas, Konstantinos G.、Neochoritis, Constantinos G.
DOI:10.1002/ejoc.202400581
日期:——
We utilized cyclic N-sulfonyl ketimines, a privileged class of heterocycles with extensive applications in organic and medicinal chemistry, in four distinct IMCRs, aiming to generate compound libraries compatible for structural elaboration. Four scaffolds, 15 novel compounds with high diversity and complexity, along with single crystal structures for each scaffold have been obtained, revealing their
作者:Maria Thomaidi、Lida‐Evmorfia Vagiaki、Nikolaos P. Tripolitsiotis、Giasemi K. Angeli、Tryfon Zarganes‐Tzitzikas、Kyriaki Sidiropoulou、Constantinos G. Neochoritis
DOI:10.1002/cmdc.202200246
日期:2022.8.3
Think globally, act locally: Current anesthetics have limited structural diversity, suffer inefficient syntheses, and show increasing toxicity. Therefore, new scaffolds with improved chemical syntheses are urgently needed. Herein we report access to commercial and novel localanesthetics in a one-step synthesis via multicomponent reaction chemistry. We evaluated the synthesized libraries for their