Sterically Controlled, Palladium-Catalyzed Intermolecular Amination of Arenes
作者:Ruja Shrestha、Paramita Mukherjee、Yichen Tan、Zachary C. Litman、John F. Hartwig
DOI:10.1021/ja4032677
日期:2013.6.12
the Pd-catalyzed amination of arenes to form N-aryl phthalimides with regioselectivity controlled predominantly by steric effects. Mono-, di-, and trisubstituted arenes lacking a directing group undergo amination reactions with moderate to high yields and high regioselectivities from sequential addition of PhI(OAc)2 as an oxidant in the presence of Pd(OAc)2 as catalyst. This sterically derived selectivity
Synthesis of <i>N</i>-substituted phthalimides <i>via</i> Pd-catalyzed [4+1] cycloaddition reaction
作者:Chengxian Hu、Lu Wang、Yuanyuan Wu、Yonglong Zheng、Ying Fu、Zhengyin Du
DOI:10.1039/d3cc04534j
日期:——
A novel Pd-catalyzed assembly of N-phenylphthalimide by merging of [4+1] cycloaddition and difluorocarbene transfer carbonylation from 2-iodo-N-phenylbenzamides and difluorocarbene precursors is disclosed. In this reaction, difluorocarbene acts as a carbonyl source and simultaneously forms one C-C bond, one C-N bond and one C=O bond to produce N-phenylphthalimides in high yields.