30824-28-3Relevant articles and documents
Synthesis of (η6-arene)NIR2 and CoR2 (R = σ-bound halosilanes and haloarenes) by (allyl)2Ni/HR reactions and combined metal trifluoroacetate/grignard reagent methods
Lin, Shaw-Tao,Narske, Richard N.,Klabunde, Kenneth J.
, p. 571 - 574 (2008/10/08)
Conventional solution methods, rather than metal atom/vapor methods, have been devised for synthesis of (η6-arene)MR2, where M = Co and Ni and R = SiF3, SiCl3, SiCl2Me, C6F5, C6F4H, and C6Cl5. The halosilane derivatives as well as polymeric Ni(SC6F5)2 and Ni(OC6F5)2 were prepared by reaction of HSiF3, HSiCl3, HSiCl2Me, HOC6F5, and HSC6F5 with (2-methylallyl)2Ni in arene solvents. A different approach was necessary for the R = haloaryl derivatives. Such a sequence involved preparation of (CF3CO2)2Ni from CF3COOAg followed by reaction with C6Cl5Li to form (C6Cl5)2Ni etherate which was converted to (C6Cl5)2Ni(η6-arene) by reaction with an arene/BF3 mixture (although simply heating with the arene worked with some systems). This method allowed more convenient syntheses of known (η6-arene)MR2 complexes and, for the first time, synthesis of the C6F4H and C6Cl5 derivatives.
