Kinetically Controlled Stereoselective Access to Branched 1,3-Dienes by Ru-Catalyzed Remote Conjugative Isomerization
作者:Simone Scaringi、Clément Mazet
DOI:10.1021/acscatal.1c02144
日期:2021.7.2
3-dienes is described. These kinetic products are obtained in high yields, good levels of regiocontrol, and high stereoselectivity. A broad range of functional groups and heterocycles are compatible with the mild reaction conditions, and isomerization is sustained over long distances. Control experiments support a metal-hydride mechanism consisting of iterative migratory insertions/β-H eliminations, which
描述了提供支链 1,3-二烯的远程烯烃的 Ru 催化共轭异构化。这些动力学产物以高产率、良好的区域控制水平和高立体选择性获得。范围广泛的官能团和杂环与温和的反应条件相容,并且异构化持续长距离。对照实验支持由迭代迁移插入/β-H 消除组成的金属氢化物机制,该机制优先在末端烯烃位点启动。已经开发了两种使用 [Ru/Cu] 和 [Ru/Rh] 组合的一锅多金属选择性催化序列来说明该过程的合成潜力。