Iridium-Catalyzed Intermolecular Hydroamination of Unactivated Aliphatic Alkenes with Amides and Sulfonamides
作者:Christo S. Sevov、Jianrong (Steve) Zhou、John F. Hartwig
DOI:10.1021/ja3052848
日期:2012.7.25
alkenes remains a challenging, but desirable, strategy for the synthesis of N-alkylamines. We report the intermolecular amination of unactivated α-olefins and bicycloalkenes with arylamides and sulfonamides to generate synthetically useful protected amine products in high yield. Mechanistic studies on this rare catalytic reaction revealed a resting state that is the product of N-H bond oxidative addition
NH 键与未活化烯烃的分子间加成仍然是合成 N-烷基胺的一种具有挑战性但又可取的策略。我们报告了未活化的 α-烯烃和双环烯烃与芳基酰胺和磺酰胺的分子间胺化,以高产率生成合成有用的受保护胺产物。对这种罕见的催化反应的机理研究揭示了一种静止状态,它是 NH 键氧化加成和酰胺配位的产物。酰胺的快速、可逆解离先于与烯烃的反应,但在与烯烃的反应之前会发生分子内、动力学上显着的物质重排。