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: Kawamoto, Takahiro; Ejiri, Shogo; Kobayashi, Kana; Odo, Shunsuke; Nishihara, Yasushi; Takagi, Kentaro Journal of Organic Chemistry, 2008 , vol. 73, # 4 p. 1601 - 1604

Full Text: HTML

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 ...