Versatile Pd(II)-Catalyzed C−H Activation/Aryl−Aryl Coupling of Benzoic and Phenyl Acetic Acids
摘要:
The use of aryltrifluoroborates as coupling partners and O-2 as the oxidant substantially improves the scope and practicality of the Pd-catalyzed C-H activation/C-C coupling reaction. The newly discovered protocol made possible, for the first time, the orthocoupling of electron-deficient arenes and phenyl acetic acids With organometallic reagents.
Versatile Pd(II)-Catalyzed C−H Activation/Aryl−Aryl Coupling of Benzoic and Phenyl Acetic Acids
作者:Dong-Hui Wang、Tian-Sheng Mei、Jin-Quan Yu
DOI:10.1021/ja806681z
日期:2008.12.31
The use of aryltrifluoroborates as coupling partners and O-2 as the oxidant substantially improves the scope and practicality of the Pd-catalyzed C-H activation/C-C coupling reaction. The newly discovered protocol made possible, for the first time, the orthocoupling of electron-deficient arenes and phenyl acetic acids With organometallic reagents.
Amide-Directed C−H Sodiation by a Sodium Hydride/Iodide Composite
作者:Yinhua Huang、Guo Hao Chan、Shunsuke Chiba
DOI:10.1002/anie.201702512
日期:2017.6.1
A new protocol for amide-directed ortho and lateral C-H sodiation is enabled by sodiumhydride (NaH) in the presence of either sodium iodide (NaI) or lithium iodide (LiI). The transient organosodium intermediates could be transformed into functionalized aromatic compounds.