Rhodium-Catalyzed ortho-Selective CF Bond Borylation of Polyfluoroarenes with BpinBpin.
- Resource Type
- Article
- Authors
- Guo, Wen-Hao; Min, Qiao-Qiao; Gu, Ji-Wei; Zhang, Xingang
- Source
- Angewandte Chemie. Jul2015, Vol. 127 Issue 31, p9203-9206. 4p.
- Subject
- *RHODIUM catalysts
*AROMATIC fluorine compounds
*COVALENT bonds
*OPTOELECTRONIC devices
*CHEMICAL reactions
- Language
- ISSN
- 0044-8249
An ortho-selective CF bond borylation between N-heterocycle-substituted polyfluoroarenes and Bpin-Bpin with simple and commercially available [Rh(cod)2]BF4 as a catalyst is now reported. The reaction proceeds under mild reaction conditions with high efficiency and broad substrate scope, even toward monofluoroarene, thus providing a facile access to a wide range of borylated fluoroarenes that are useful for photoelectronic materials. Preliminary mechanistic studies reveal that a RhIII/V catalytic cycle via a key intermediate rhodium(III) hydride complex [(H)RhIIILn(Bpin)] may be involved in the reaction. [ABSTRACT FROM AUTHOR]