Rh-Catalyzed Carbonylation of Arylzinc Compounds Yielding Symmetrical Diaryl Ketones by the Assistance of Oxidizing Agents

…, F Gao, K Gotoh, Y Nishihara, K Takagi

Index: Ejiri, Syogo; Odo, Shunsuke; Takahashi, Hideki; Nishimura, Yugo; Gotoh, Kazuma; Nishihara, Yasushi; Takagi, Kentaro Organic Letters, 2010 , vol. 12, # 8 p. 1692 - 1695

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Citation Number: 23

Abstract

Carbonylative homocoupling of arylzinc compounds 1 using 1 atm of CO and 1, 2- dibromoethane as an oxidant was achieved in the presence of Rh− dppf catalyst, affording symmetrical diaryl ketones in good yields. Under similar conditions, Pd or Ni catalysts induced oxidative homocoupling of 1 to yield biaryls instead. The beneficial catalysis by Rh in the carbonylation was presumed to stem from the facility by which the migration of the ...