过渡金属催化的单分子片段偶联 (UFC) 定义为通过分子(如 CO 和 CO 2)的挤出以及随后剩余片段的重组形成新化学键的过程。在此,我们报道了一种新的 UFC 反应,该反应涉及钯催化从酰胺中消除异氰酸酯片段,形成碳-碳和碳-杂原子键。通过 X 射线晶体学表征了与催化反应相关的有机金属中间体。这种 UFC 反应能够实现酰胺官能团的后期转化,从而使酰胺能够用作可转换的导向或保护基团。
FeCl<sub>3</sub>-Catalyzed Oxidative Allylation of sp<sup>2</sup> and sp<sup>3</sup> C−H Bond Adjacent to a Nitrogen Atom: Easy Access to Homoallyl Tertiary Amines
Oxidative allylation to sp(2)- and sp(3)-carbon attached to the nitrogen atom was accomplished. The alpha-allylation of tertiary amines was catalyzed by easily available hydrated iron(III) chloride in combination with air or aqueous (BuOOH)-Bu-t. Remarkably, N-allyl- and N-propagyl-tethered tertiary amines were also allylated through this protocol.