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Ferrocenes

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Organic Chemistry".

Deadline for manuscript submissions: closed (31 October 2009) | Viewed by 41483

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Keywords

  • ferrocenes

Published Papers (4 papers)

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Research

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295 KiB  
Article
Thioacetyl-Terminated Ferrocene-Anthraquinone Conjugates: Synthesis, Photo- and Electrochemical Properties Triggered by Protonation-Induced Intramolecular Electron Transfer
by Wen-Wei Zhang, Mio Kondo, Takako Fujita, Kosuke Namiki, Masaki Murata and Hiroshi Nishihara
Molecules 2010, 15(1), 150-163; https://doi.org/10.3390/molecules15010150 - 04 Jan 2010
Cited by 8 | Viewed by 10924
Abstract
Two thioacetyl-terminated ferrocene-anthraquinone donor-acceptor molecules with different π-electron conjugative units have been synthesized via a series of Stille and Sonagashira reactions. Their photochemical and electrochemical properties before and after addition of an organic acid are investigated, indicating that these complexes are sensitive to [...] Read more.
Two thioacetyl-terminated ferrocene-anthraquinone donor-acceptor molecules with different π-electron conjugative units have been synthesized via a series of Stille and Sonagashira reactions. Their photochemical and electrochemical properties before and after addition of an organic acid are investigated, indicating that these complexes are sensitive to external perturbation of protonation, leading the structural change to an expansion of π-conjugated system by cyclocondensation reaction and promoting intramolecular electron transfer from donor to acceptor. They would be good candidates for studies of novel SAMs, and the properties triggered by protonation-induced intramolecular electron transfer will make the SAMs be useful in designing new functional molecular devices. Full article
(This article belongs to the Special Issue Ferrocenes)
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614 KiB  
Article
Synthesis and Characterization of Some Chiral Metal-Salen Complexes Bearing a Ferrocenophane Substituent
by Angela Patti, Sonia Pedotti, Francesco Paolo Ballistreri and Giuseppe Trusso Sfrazzetto
Molecules 2009, 14(11), 4312-4325; https://doi.org/10.3390/molecules14114312 - 26 Oct 2009
Cited by 26 | Viewed by 11907
Abstract
The C2-symmetrical “salen” ligand (+)-9 bearing two [5]ferrocenophane substituents has been prepared in five steps starting from readily available diacetylferrocene, p-hydroxybenzaldehyde and (R,R)-N,N’-diphenylethylenediamine. Reaction of (+)-9 with Mn(OAc)3, Co(OAc)2 ZnEt2 or UO2(OAc)2 gave the corresponding metal-complexes which were characterised by spectroscopic methods. Full article
(This article belongs to the Special Issue Ferrocenes)
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419 KiB  
Article
Intramolecular Transformations of 3-Cyanoamino- and 3-Cyanoimino-1,2-diferrocenylcyclopropenes
by Elena Ivanovna Klimova, Tatiana Klimova, Marcos Flores-Alamo, Leon Vladimirovich Backinowsky and Marcos Martinez Garcia
Molecules 2009, 14(9), 3161-3175; https://doi.org/10.3390/molecules14093161 - 26 Aug 2009
Cited by 7 | Viewed by 8297
Abstract
3-Cyanoamino-1,2- and -2,3-diferrocenylcyclopropenes 6a,b and 11a,b prepared by the reaction of diferrocenylcyclopropenylium salts with sodium cyanamide undergo smooth intramolecular transformations with both conservation of the three-membered ring [affording 3-cyanoimino-1,2-diferrocenylcyclopropene (8)] and its opening [affording Z-3-morpholino- and Z-3-piperidino-3-(cyanoimino)-1,2-diferrocenylprop-1-enes 7a,b and Z-3-cyanoimino-2,3-diferrocenyl-1-methylthioprop-1-ene [...] Read more.
3-Cyanoamino-1,2- and -2,3-diferrocenylcyclopropenes 6a,b and 11a,b prepared by the reaction of diferrocenylcyclopropenylium salts with sodium cyanamide undergo smooth intramolecular transformations with both conservation of the three-membered ring [affording 3-cyanoimino-1,2-diferrocenylcyclopropene (8)] and its opening [affording Z-3-morpholino- and Z-3-piperidino-3-(cyanoimino)-1,2-diferrocenylprop-1-enes 7a,b and Z-3-cyanoimino-2,3-diferrocenyl-1-methylthioprop-1-ene (10)]. 3-Cyano-imino-1,2-diferrocenylcyclopropene (8) reacts with hydrazine to form 3-amino-6-ferrocenyl-5-ferrocenylmethyl-1,2,4-triazine (12) and Z-2,3-diferrocenylacrylohydrazide N-cyanoimide (13) as a result of intramolecular transformations. The structures of the compounds obtained were determined by IR, 1H- and 13C-NMR spectroscopy and mass spectrometry. The structures of compounds 7a and 10 were additionally confirmed by their X-ray diffraction analysis data. Full article
(This article belongs to the Special Issue Ferrocenes)
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Review

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403 KiB  
Review
Kinetic Resolution: A Powerful Tool for the Synthesis of Planar-Chiral Ferrocenes
by Andrea-Nekane R. Alba and Ramon Rios
Molecules 2009, 14(11), 4747-4757; https://doi.org/10.3390/molecules14114747 - 20 Nov 2009
Cited by 44 | Viewed by 10015
Abstract
Since the serendipitous discovery of ferrocene by Pauson and Kealy in 1951, it has become one of the most important structures in Organic Chemistry. Lately, kinetic resolution has emerged as a useful tool for the synthesis of planar chiral ferrocenes. This review aims [...] Read more.
Since the serendipitous discovery of ferrocene by Pauson and Kealy in 1951, it has become one of the most important structures in Organic Chemistry. Lately, kinetic resolution has emerged as a useful tool for the synthesis of planar chiral ferrocenes. This review aims to cover and discuss the development of this topic. Full article
(This article belongs to the Special Issue Ferrocenes)
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