efficient, reusable and stable binaphthyl stabilized Pd‐nanoparticles (Pd‐BNP) catalyzed the direct ortho‐C−H hydroxylation of acetophenone oxime ethers under neutral and phosphineligand‐free condition has been developed. A readily available, economic, safe and greener oxidant oxone has been used in this direct ortho‐hydroxylation. The scope of the reaction has been studied with various acetophenone oxime
Synthesis of <i>N</i>-alkoxy amines and hydroxylamines <i>via</i> the iridium-catalyzed transfer hydrogenation of oximes
作者:Yanping Xia、Sen Wang、Rui Miao、Jianhua Liao、Lu Ouyang、Renshi Luo
DOI:10.1039/d2ob01084d
日期:——
hydrogenation of oximes to access N-alkoxy amines and hydroxylamines, and the reaction was accelerated by trifluoroacetic acid. The practical application of this protocol was demonstrated by a gram-scale transformation and two-step synthesis of the fungicide furmecyclox (BAS 389F) in overall yields of 92 and 85%, respectively. An asymmetric protocol using chiral Ir complexes to afford chiral N-alkoxy amines was