1
|
Schwitalla K, Klimek J, Greven T, Schmidtmann M, Beckhaus R. Syntheses, Characterization, and Redox Activity of Ferrocene-Containing Titanium Complexes. ACS OMEGA 2024; 9:29017-29024. [PMID: 38973898 PMCID: PMC11223194 DOI: 10.1021/acsomega.4c04332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/07/2024] [Accepted: 06/13/2024] [Indexed: 07/09/2024]
Abstract
The chemistry of bis(π-η5:σ-η1-pentafulvene)titanium complexes is characterized by a broad range of E-H activation and Ti-C functionalization reactions, whereas ferrocene derivatives are easily accessible and redox-active compounds. The reaction of ferrocenealdehyde and -ketones with bis(π-η5:σ-η1-pentafulvene)titanium complexes result in the formation of bimetallic complexes via insertion of the C=O double bond of the aldehyde/ketone into the Ti-Cexo bond of the pentafulvene moiety. The reaction of bis(π-η5:σ-η1-pentafulvene)titanium complexes with ferrocenyl alcohols leads to alcoholate complexes via deprotonation of the OH group by the pentafulvene ligand. Because of the one remaining pentafulvene unit, further functionalization of the complexes is possible. In this work, we proceeded with 1,1'-bifunctionalized ferrocene derivatives for intramolecular follow-up reactions. 1,1'-Ferrocenedimethanol reacts with bis(π-η5:σ-η1-pentafulvene)titanium complexes in a double O-H deprotonation reaction to yield the dialcoholate complex. 1,1'-bis(phenylphosphine)ferrocene reacts differently as the double P-H deprotonation reaction results in the formation of a P-P linked phosphine. Therefore, we studied the reactivity of 1,1'-bis(phenylphosphine)ferrocene toward Rosenthal's reagent. As Rosenthal's reagent is regarded as a masked titanocene(II) species, it undergoes redox reactions toward H-acidic substrates, forming a paramagnetic Ti(III) complex.
Collapse
Affiliation(s)
- Kevin Schwitalla
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Justin Klimek
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Tobias Greven
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Marc Schmidtmann
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Rüdiger Beckhaus
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| |
Collapse
|
2
|
|
3
|
Loxq P, Daran J, Manoury E, Poli R, Labande A. Bifunctional N‐Heterocyclic Carbene Ferrocenyl Ligands – Synthesis and Palladium(II) Complexes. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201403001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pauline Loxq
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, France, http://www.lcc‐toulouse.fr/lcc/spip.php?article12
- Université de Toulouse, UPS, INPT, 31077 Toulouse Cedex 4, France
| | - Jean‐Claude Daran
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, France, http://www.lcc‐toulouse.fr/lcc/spip.php?article12
- Université de Toulouse, UPS, INPT, 31077 Toulouse Cedex 4, France
| | - Eric Manoury
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, France, http://www.lcc‐toulouse.fr/lcc/spip.php?article12
- Université de Toulouse, UPS, INPT, 31077 Toulouse Cedex 4, France
| | - Rinaldo Poli
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, France, http://www.lcc‐toulouse.fr/lcc/spip.php?article12
- Université de Toulouse, UPS, INPT, 31077 Toulouse Cedex 4, France
- Institut Universitaire de France, 103 bd Saint‐Michel, 75005 Paris, France
| | - Agnès Labande
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, France, http://www.lcc‐toulouse.fr/lcc/spip.php?article12
- Université de Toulouse, UPS, INPT, 31077 Toulouse Cedex 4, France
| |
Collapse
|
4
|
Upton BM, Gipson RM, Duhović S, Lydon BR, Matsumoto NM, Maynard HD, Diaconescu PL. Synthesis of ferrocene-functionalized monomers for biodegradable polymer formation. Inorg Chem Front 2014. [DOI: 10.1039/c3qi00041a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
5
|
Affiliation(s)
- Dieter Schaarschmidt
- Inorganic
Chemistry, Institute of Chemistry, Faculty of Sciences, Technische Universität Chemnitz, 09107 Chemnitz, Germany
| | - Heinrich Lang
- Inorganic
Chemistry, Institute of Chemistry, Faculty of Sciences, Technische Universität Chemnitz, 09107 Chemnitz, Germany
| |
Collapse
|
6
|
Synthesis, characterization and X-ray crystal structures of chiral ferrocene-containing β-diketones. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.03.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|