A new palladium-catalyzed highly regioselective allylic CâH amination of alkenes with NFSI in the presence of a catalytic amount of water was developed and successfully expanded to Selectfluor-mediated palladium-catalyzed aminations of alkenes with N-tosylcarbamates in water at room temperature.
Scope and Mechanism of Allylic C−H Amination of Terminal Alkenes by the Palladium/PhI(OPiv)<sub>2</sub> Catalyst System: Insights into the Effect of Naphthoquinone
作者:Guoyin Yin、Yichen Wu、Guosheng Liu
DOI:10.1021/ja1030936
日期:2010.9.1
highly efficient transformation of alkenes has been achieved by enhancing the reoxidation of palladium with the strong oxidant PhI(OPiv)(2). The present work also provides the first systematic analysis of the mechanism of the allylicC-H oxidative amination. It has been found that naphthoquinone (NQ) plays a vital role in promoting olefin coordination to the palladium catalyst: in the absence of NQ, the
Palladium-Catalyzed Intermolecular Aerobic Oxidative Amination of Terminal Alkenes: Efficient Synthesis of Linear Allylamine Derivatives
作者:Guosheng Liu、Guoyin Yin、Liang Wu
DOI:10.1002/anie.200801009
日期:2008.6.9
A Bulky Disulfoxide Ligand for Pd-Catalyzed Oxidative Allylic C–H Amination with 2,2,2-Trichloroethyl Tosyl Carbamate
作者:You-Gui Li、Li Li、Ming-Yue Yang、Gang He、Eric Assen B. Kantchev
DOI:10.1021/acs.joc.6b03089
日期:2017.5.5
Challenging substrates and conditions in homogeneous catalysis pose stringent demands on the ligands used. A novel, bulky, 1-adamantyl-substituted disulfoxide ligand designed after a systematic evaluation of the electronic and steric properties of disulfoxide substituents permits the allylic oxidative C–N coupling reaction to proceed at lower catalyst loading while requiring a smaller excess of reagents