SPh functionalized bridging-vinyliminium diiron and diruthenium complexes

Abstract

The SPh functionalized vinyliminium complexes [Fe 2{μ-η 1:η 3-C γ(R′) C β(SPh)C α N(Me)(R)}(μ-CO)(CO)(Cp) 2][SO 3CF 3] [R = Xyl, R′ = Me, 2a; R = Me, R′ = Me, 2b; R = 4-C 6H 4OMe, R′ = Me, 2c; R = Xyl, R′ = CH 2OH, 2d; R = Me, R′ = CH 2OH, 2e; Xyl = 2,6-Me 2C 6H 3] are generated in high yields by treatment of the corresponding vinyliminium complexes [Fe 2{μ-η 1:η 3-C γ(R′) C β(H)C α N(Me)(R)}(μ-CO)(CO)(Cp) 2][SO 3CF 3] ( 1a– e) with NaH in the presence of PhSSPh. Likewise, the diruthenium complex [Ru 2{μ-η 1:η 3-C γ(Me) C β(SPh)C α N(Me)(Xyl)}(μ-CO)(CO)(Cp) 2][SO 3CF 3] ( 2f) was obtained from the corresponding vinyliminium complex [Ru 2{μ-η 1:η 3-C γ(Me) C β(H)C α N(Me)(Xyl)}(μ-CO)(CO)(Cp) 2] ( 1f). The synthesis of 2c is accompanied by the formation, in comparable amounts, of the aminocarbyne complex [Fe 2{μ-CN(Me)(4-C 6H 4OMe)}(SPh)(μ-CO)(CO)(Cp) 2] ( 3). The molecular structures of 2d, 2e and 3 have been determined by X-ray diffraction studies.