Pd-Catalyzed Intermolecular C–H Amination with Alkylamines
作者:Eun Jeong Yoo、Sandy Ma、Tian-Sheng Mei、Kelvin S. L. Chan、Jin-Quan Yu
DOI:10.1021/ja202563w
日期:2011.5.25
C-H amination of N-arylbenzamides with O-benzoyl hydroxylamines has been achieved with either Pd(II) or Pd(0) catalysts. Furthermore, we demonstrate that secondary amines can be directly used with benzoyl peroxide in a one-pot procedure that proceeds via the in situ generation of the appropriate O-benzoyl hydroxylamines. This catalytic reaction provides a new disconnection for the convergent synthesis
The use of a weakly coordinating monodentate directing group for copper mediated ortho-hydroxylation and amination reactions allows for the identification of an external oxazoline ligand as a promoter.