Diaminocarbene??and Fischer??Carbene Complexes of Palladium and Nickel by Oxidative Insertion: Preparation, Structure, and Catalytic Activity

D Kremzow, G Seidel, CW Lehmann…

Index: Kremzow, Doris; Seidel, Guenter; Lehmann, Christian W.; Fuerstner, Alois Chemistry - A European Journal, 2005 , vol. 11, # 6 p. 1833 - 1853

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Citation Number: 202

Abstract

Abstract Oxidative insertion of [Pd (PPh 3) 4] or [Ni (cod) 2]/PPh 3 into the C [BOND] Cl bond of various 2-chloroimidazolinium-and other-amidinium salts affords metal–diaminocarbene complexes in good to excellent yields. This procedure is complementary to existing methodology in which the central metal does not change its oxidation state, and therefore allows to incorporate carbene fragments that are difficult to access otherwise. The ...