Radical Annulation of 2-Cyanoaryl Acrylamides via C═C Double Bond Cleavage: Access to Amino-Substituted 2-Quinolones
作者:Wen-Jin Xia、Tai-Gang Fan、Zhi-Wei Zhao、Xin Chen、Xiang-Xiang Wang、Ya-Min Li
DOI:10.1021/acs.orglett.1c02281
日期:2021.8.6
2-cyanoaryl acrylamides via C═C double bond cleavage has been developed for facile and efficient access to a broad spectrum of functionalized 4-amino-2-quinolones, which are important N-heterocycles. In this transformation, the solvent THF is demonstrated to play a crucial role, and the addition of alkyl radicals to nitrile, 1,5-hydride shift, and cleavage of the C–C bond are involved in the mechanism
已经开发了一种通过 C=C 双键裂解的 2-氰基丙烯酰胺的新型环化,以方便有效地获得广泛的官能化 4-氨基-2-喹诺酮类化合物,它们是重要的N-杂环。在这种转化中,溶剂四氢呋喃被证明起着至关重要的作用,烷基与腈的加成、1,5-氢化物转移和 C-C 键的断裂都参与了该机制。