Trifluoromethyl Vinamidinium Salt as a Promising Precursor for Fused β-Trifluoromethyl Pyridines
作者:Andrii P. Mityuk、Oleksandr M. Kiriakov、Vladislav V. Tiutiunnyk、Pavlo S. Lebed、Galyna P. Grabchuk、Eduard B. Rusanov、Dmitriy M. Volochnyuk、Sergey V. Ryabukhin
DOI:10.1021/acs.joc.2c02684
日期:2023.3.3
functionalized fused β-trifluoromethyl pyridines by cyclization of electron-rich aminoheterocycles or substituted anilines with a trifluoromethyl vinamidinium salt was developed. The efficient and scalable approach for producing represented trifluoromethyl vinamidinium salt demonstrated huge prospects for further use. The structure specificities of the trifluoromethyl vinamidinium salt and their impact
开发了一种有效的氯三甲基硅烷促进合成方案,用于通过富电子氨基杂环或取代苯胺与三氟甲基亚胺铵盐的环化制备官能化稠合 β-三氟甲基吡啶。生产代表性三氟甲基亚胺铵盐的高效且可扩展的方法展示了进一步使用的巨大前景。确定了三氟甲基亚胺鎓盐的结构特异性及其对反应进程的影响。研究了该程序的范围和反应的替代方式。显示了将反应规模增加到 50 g 和进一步改进所得产品的可能性。19 个潜在片段的迷你图书馆合成了基于 F NMR 的基于片段的药物发现 (FBDD)。
One-Pot Synthesis of α-Carbolines via Sequential Palladium-Catalyzed Aryl Amination and Intramolecular Arylation
作者:Joydev K. Laha、Philip Petrou、Gregory D. Cuny
DOI:10.1021/jo802776m
日期:2009.4.17
A one-potsynthesis of α-carbolines via a palladium-catalyzed aryl amination followed by intramoleculararylation is described. 2,3-Dichloro- and 2,3-dibromopyridines have been shown to react with readily available anilines to obtain various substituted α-carbolines in moderate to excellent yields.