C-2 Arylation of Piperidines through Directed Transition-Metal-Catalyzed sp<sup>3</sup>CH Activation
作者:Hana Prokopcová、Sheba D. Bergman、Karel Aelvoet、Veerle Smout、Wouter Herrebout、Benjamin Van der Veken、Lieven Meerpoel、Bert U. W. Maes
DOI:10.1002/chem.201001887
日期:2010.11.22
need is an open vial! The direct α arylation of cyclic alkylamines (see scheme) requires an open vial, as the hydrogen atom involved in the C(sp3)H‐activation process is ultimately released as hydrogen gas. Reports on the formation of hydrogen gas in direct transition‐metal‐catalyzed functionalizations are still rare. Open‐vial reactions proved crucial to this direct arylation procedure as, upon sealing
您只需要一个开放的小瓶!环状烷基胺的直接α芳基化反应(请参见方案)需要一个开放的小瓶,因为参与C(sp 3)H活化过程的氢原子最终会以氢气的形式释放出来。关于在直接过渡金属催化的官能化反应中形成氢气的报道仍然很少。小瓶反应证明对这种直接芳构化过程至关重要,因为密封后会发生催化剂失活。