Tetraferrocenyl-[3]-cumulene
作者： Benno Bildstein , Manuela Schweiger , Holger Kopacka , Klaus Wurst
DOI: 10.1016/S0022-328X(97)00266-0
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摘要: Abstract Tetraferrocenyl-[3]-cumulene (tetraferrocenylbutatriene) is synthesized from tetraferrocenyl-methoxy-hydroxy-butyne by reduction with stannous chloride. Other reducing agents, including iron carbonyls, samarium(II) iodide, low-valent titanium, and trimethylchlorosilane/zinc, failed or gave inferior results. With the McMurry reagent goes further tetraferrocenylbutadiene obtained. The title compound an electron-rich cumulene, as shown cyclic voltammetry. Due to steric shielding of central cumulene functionality, no established butatriene reactivity (complex formation dimerization) observed, but simple ferrocene-based redox charge-transfer chemistry possible.
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