Journal of Organometallic Chemistry p. 677 - 682 (2001)
Update date:2022-08-03
Topics:
Díez, Josefina
Gamasa, M. Pilar
Gimeno, José
Lanfranchi, Maurizio
Tiripicchio, Antonio
Copper(I) complexes [Cu(CNR)2(κ2-P,P-dppf)][BF4] (R=tBu (1), 2,6-Me2C6H3 (2), Cy (3), Bz (4)) containing the chelating dppf ligand (dppf=1,1′-bis(diphenylphosphino)ferrocene) have been prepared by reaction of the complex [Cu2(μ-Cl)2(κ2-P,P-dppf)2] with the corresponding isocyanide C≡NR (molar ratio 1:1). Alternatively, complexes 1-4 can also be obtained by the reaction of the acetonitrile complexes [Cu(MeCN)2(κ2-P,P-dppf)][BF4] with 2.5 equivalents of C≡NR in refluxing dichloromethane. The crystal structures of [Cu2(μ-Cl)2(κ2-P,P-dppf)2] and [Cu(CNtBu)2(κ2-P,P-dppf)][BF4], determined by X-ray diffraction, are also reported.
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