Alkylferrocenes: A simple preparation from lithioferrocenes and their aqueous electrochemistry
摘要:
Mono- and dialkylferrocenes are readily prepared by the nucleophilic substitution of n-alkyl halides with lithioferrocenes. The products can be purified by short-path distillation or recrystallization. Three alkylferrocenes were prepared by this synthetic strategy and characterized by cyclic voltammetry in aqueous solution. (C) 1997 Elsevier Science S.A.
Razuvaev, G. A.; Yudenich, S. G.; Druzhkov, O. N., Journal of general chemistry of the USSR, 1982, vol. 52, p. 2108 - 2109
作者:Razuvaev, G. A.、Yudenich, S. G.、Druzhkov, O. N.、Dodonov, V. A.
DOI:——
日期:——
Synthesis and electrochemical properties of mono- and (�)-1,2-dialkylferrocenes and alkylferrocenium hexafluorophosphates in aqueous and micellar media
作者:M. A. Bazhenova、S. S. Bogush、A. G. Herbst、T. V. Demeshchik、Yu. G. Komarovskaya、V. S. Kurova、M. D. Reshetova、A. D. Ryabov、E. S. Ryabova、Yu. N. Frrsova
DOI:10.1007/bf01435401
日期:1996.10
Simple methods have been developed for the preparation of a series of n-alkylferrocenes H(CH2)(n)Fc (n = 3, 5-8, or 12) based on Friedel-Crafts acylation of ferrocenes followed by reduction of the corresponding ketones with Zn amalgam. The properties of H(CH2)(n)Fc and the corresponding ferrocenium ions in micellar aqueous solutions and the behavior of water-soluble cations H(CH2)(n)Fc(+) in the absence of micelles were studied by cyclic voltammetry. In all cases, the formal redox potentials of ferrocenes (E(o)') increase linearly as n increases up to 8. Whether micelles are present or not, the corresponding correlation equation has the following form: E(o)' = alpha + beta n, where beta approximate to 29 mV in all cases. The synthesis of (+/-)-1-ethyl-2-methylferrocene from racemic alpha-dimethylaminoethylferrocene is reported.