Synthesis of diiron μ-allenyl complexes by electrophilic addition to propen-2-yl-dimetallacyclopentenone species: A joint experimental and DFT study
作者： Gabriele Agonigi , Marco Bortoluzzi , Tiziana Funaioli , Fabio Marchetti , Guido Pampaloni
DOI: 10.1016/J.JORGANCHEM.2013.02.005
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摘要: Abstract The propen-2-yl-dimetallacyclopentenone complex [Fe2Cp2(CO)(μ-CO){μ-η1:η3-Cα(H) Cβ(Cγ(CH3)CH2)C( O)}] (1) underwent electrophilic additions at the propenyl moiety to afford μ-allenyl complexes [Fe2Cp2(CO)2(μ-CO){μ-η1:η2α,β-CαH Cβ Cγ(CH3)(CH2E)}][BF4] (E = CPh3, [2][BF4]; E = H, [3][BF4]), in ca. 85% yield. molecular structure of ([2][BF4]) was ascertained by X-ray diffractometry; X-ray, NMR and DFT results agreed that one single isomer formed, bearing [CH2CPh3] group pointing far from Fe–Fe axis. reaction [3][BF4] with NHEt2 presence PhSSPh resulted prevalent formation [FeCp(CO)2SPh] (7).
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