A RuH2(CO)(PPh3)3-Catalyzed Regioselective Arylation of Aromatic Ketones with Arylboronates via Carbon-Hydrogen Bond Cleavage
Fumitoshi Kakiuchi,* Yusuke Matsuura, Shintaro Kan and Naoto Chatani
*Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan, and PRESTO, JST, 4-1-8 Honcho Kawaguchi, Saitama, Japan, Email: kakiuchichem.eng.osaka-u.ac.jp
F. Kakiuchi, Y. Matsuura, S. Kan. N. Chatani, J. Am. Chem. Soc., 2005, 127, 5936-5945.
DOI: 10.1021/ja043334n (free Supporting Information)
The ortho-arylation of aromatic ketones with arylboronates using RuH2(CO)(PPh3)3 as a catalyst was conducted in pinacolone. This solvent dramatically suppressed the competing reduction of the aromatic ketones and, as a result, ortho-arylated products were obtained in high yield. The mechanism is discussed.
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