Reactions of palldium(II) compounds with carbon monoxide in alcohol/amine systems : a new route to palladium(O) carbonyl and carboalkoxy-palladium(II) complexes |
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Authors: | M Hidai M Kokura Y Uchida |
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Institution: | Department of Industrial Chemistry, The University of Tokyo, Hongo, Tokyo Japan |
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Abstract: | Palladium(O) carbonyl complexes, Pd(CO)(PPh3)3 Pd3(CO)3(PPh3)3 and Pd3(CO)3(PPh3)4, can conveniently be prepared by the reaction of (PPh3)2PdCl2 with carbon monoxide at room temperature in methanol/amine systems involving primary and secondary amines such as diethylamine and cyclohexylamine. These carbonyl complexes are interconvertible under suitable conditions. On the other hand, use of tertiary amine such as triethylamine and tri-n-butylamine in place of the above amines give selectively a carbomethoxy complex (PPh3)2PdCl(COOCH3). |
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