Pd(II)-Catalyzed Amination of C−H Bonds Using Single-Electron or Two-electron Oxidants
作者:Tian-Sheng Mei、Xisheng Wang、Jin-Quan Yu
DOI:10.1021/ja904709b
日期:2009.8.12
Pd(II)-catalyzed intramolecular amination of arenes is developed using either a one- or two-electron oxidant. The reaction protocol tolerates a wide range of deactivating groups including acetyl, cyano, and nitro groups. This catalytic reaction allows expedient syntheses of broadly useful substituted indolines or indoles.
Pd(II)-Catalyzed <i>o</i>-C−H Acetoxylation of Phenylalanine and Ephedrine Derivatives with MeCOOO<sup><i>t</i></sup>Bu/Ac<sub>2</sub>O
作者:Chris J. Vickers、Tian-Sheng Mei、Jin-Quan Yu
DOI:10.1021/ol1007108
日期:2010.6.4
Pd(II)-catalyzed ortho C-H acetoxylation of triflate protected phenethyl- and phenpropylamines has been achieved with tert-butyl peroxyacetate as the stoichiometric oxidant and either DMF or CH3CN as the promoter. The reaction was found to tolerate a large variety of functional groups and could be combined with subsequent intramolecular amination to afford functionalized indoline derivatives.