Ground State Generation and Cyclization of Aminium Radicals in the Formation of Tetrahydroquinolines
作者:Cassie Pratley、Sabine Fenner、John A. Murphy
DOI:10.1021/acs.orglett.4c00179
日期:2024.2.16
This paper reports the first examples of ground state radical-mediated intramolecular C–H amination to afford 1-methyl-1,2,3,4-tetrahydroquinolines from N-2,4-dinitrophenoxy derivatives of arylpropylamines. Whereas the photoactivation of N-2,4-dinitrophenoxyamines for intermolecular reactions has been established, ground state chemistry provides the desired cyclization products in moderate to excellent
本文报道了基态自由基介导的分子内 C-H 胺化的第一个例子,从芳基丙胺的N -2,4-二硝基苯氧基衍生物得到 1-甲基-1,2,3,4-四氢喹啉。虽然用于分子间反应的N -2,4-二硝基苯氧基胺的光活化已经建立,但基态化学在酸性条件下使用 Ru(bpy) 3 Cl 2 (42-95% 产率)以中等至优异的产率提供了所需的环化产物。空气气氛。