Pd-Catalyzed Direct Arylation of Polyfluoroarenes on Water under Mild Conditions Using PPh3 Ligand
摘要:
We report a Pd-catalyzed direct arylation of polyfluoroarenes with aryl iodides. The advantages of this reaction are its high reaction efficiency, excellent functional group compatibility, mild reaction conditions (70 degrees C), inexpensive PPh3 ligand, and use of pure water as reaction medium. The usefulness of this reaction has also been demonstrated by rapid preparation of highly functionalized polyfluoroarenes via iterative Pd-catalyzed C-H bond functionalization.
The present invention relates to compositions containing a zinc complex wherein a zinc atom carries two amide ligands, a lithium salt and a defined solvent. The compositions are stable and show high activity as reactants for metalation reactions, and thus provide a valuable tool in organic synthesis. Moreover, the invention relates to processes for the preparation of the compositions and to synthetic procedures using them.
Pd-Catalyzed Direct Arylation of Polyfluoroarenes on Water under Mild Conditions Using PPh<sub>3</sub> Ligand
作者:Fei Chen、Qiao-Qiao Min、Xingang Zhang
DOI:10.1021/jo300036d
日期:2012.3.16
We report a Pd-catalyzed direct arylation of polyfluoroarenes with aryl iodides. The advantages of this reaction are its high reaction efficiency, excellent functional group compatibility, mild reaction conditions (70 degrees C), inexpensive PPh3 ligand, and use of pure water as reaction medium. The usefulness of this reaction has also been demonstrated by rapid preparation of highly functionalized polyfluoroarenes via iterative Pd-catalyzed C-H bond functionalization.