1
|
Wang H, Fan X, Xie PP, Yang S, Pigeon P, Xiong Y, Gai S, Qi X, Wang J, Zhang Q, Li W, Qian H, McGlinchey MJ, Jaouen G, Zheng C, Wang Y. Deciphering the Diversified Metabolic Behavior of Hydroxyalkyl Ferrocidiphenols as Anticancer Complexes. J Med Chem 2024; 67:1209-1224. [PMID: 38156614 DOI: 10.1021/acs.jmedchem.3c01709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Ferrocidiphenols possessing appropriate substituents in the aliphatic chain have very promising anticancer properties, but a systematic approach to deciphering their diversified metabolic behavior has so far been lacking. Herein, we show that a series of novel ferrocidiphenols bearing different hydroxyalkyl substituents exhibit strong anticancer activity as revealed in a range of in vitro and in vivo experiments. Moreover, they display diversified oxidative transformation profiles very distinct from those of previous complexes, shown by the use of chemical and enzymatic methods and in cellulo and in vivo metabolism studies. In view of this phenomenon, unprecedented chemo-evolutionary sequences that connect all the ferrocidiphenol-related intermediates and analogues have been established. In addition, a comprehensive density functional theory (DFT) study has been performed to decipher the metabolic diversification profiles of these complexes and demonstrate the delicate modulation of carbenium ions by the ferrocenyl moiety, via either α- or β-positional participation.
Collapse
Affiliation(s)
- Hui Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Xuejing Fan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Pei-Pei Xie
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
| | - Shuang Yang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Pascal Pigeon
- PSL, Chimie ParisTech, 11 rue Pierre et Marie Curie, F-75005 Paris, France
- Sorbonne Université, UMR 8232 CNRS, IPCM, 4 place Jussieu, F-75005 Paris, France
| | - Ying Xiong
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Susu Gai
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Xin Qi
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Jing Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Qianer Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Wei Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Huimei Qian
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| | - Michael J McGlinchey
- UCD School of Chemistry, University College Dublin, Belfield, Dublin 4 D04 C1P1, Ireland
| | - Gérard Jaouen
- PSL, Chimie ParisTech, 11 rue Pierre et Marie Curie, F-75005 Paris, France
- Sorbonne Université, UMR 8232 CNRS, IPCM, 4 place Jussieu, F-75005 Paris, France
| | - Chao Zheng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
| | - Yong Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education; School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| |
Collapse
|
2
|
Idlas P, Lepeltier E, Bastiat G, Pigeon P, McGlinchey MJ, Lautram N, Vessières A, Jaouen G, Passirani C. Physicochemical Characterization of Ferrocifen Lipid Nanocapsules: Customized Drug Delivery Systems Guided by the Molecular Structure. Langmuir 2023; 39:1885-1896. [PMID: 36693216 DOI: 10.1021/acs.langmuir.2c02910] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Ferrocifens, lipophilic organometallic complexes, comprise a biologically active redox motif [ferrocenyl-ene-p-phenol] which confers very interesting cytotoxic properties to this family. However, because of their highly lipophilic nature, a formulation stage is required before being administered in vivo. In recent decades, ferrocifen lipid nanocapsules (LNCs) have been successfully formulated and have demonstrated anticancer activity on multidrug-resistant cancers in several mice and rat models (glioblastoma, breast cancer, and metastatic melanoma). A recent family of ferrocifens (succinimidoalkyl-ferrociphenols, including P722) appears to be most efficacious on several resistant cancer cell lines, with IC50 values in the nanomolar range together with promising in vivo results on murine ovarian cancer models. As LNCs are composed of an oily core (caprylic/capric triglycerides), modulation of the succinimido-ferrociphenol lipophilicity could be a valuable approach toward improving the drug loading in LNCs. As the drug loading of the diphenol P722 in LNCs was low, it was structurally modified to increase its lipophilicity and thereby the payload in LNCs. Chemical modification led to a series of five succinimido-ferrocifens. Results confirmed that these slight structural modifications led to increased drug loading in LNCs for all ferrocifens, with no reduction of their cytotoxicity on the SKOV3 ovarian cancer cell line. Interestingly, encapsulation of two of the ferrocifens, diester P769 and monophenolic ester (E)-P998, led to the formation of a gel. This was unprecedented behavior, a phenomenon that could be rationalized in terms of the positioning of ferrocifens in LNCs as shown by the decrease of interfacial tension measurements at the water/oil interface. Moreover, these results highlighted the importance of obtaining a gel of this particular motif, in which the acetylated phenolic ring and the succinimidoalkyl moieties are mutually cis relative to the central double bond. Promising perspectives to use these ferrocifen-loaded LNCs to treat glioblastoma could be readily envisaged by local application of the gel in the cavity after tumor resection.
Collapse
Affiliation(s)
- Pierre Idlas
- Micro et Nanomédecines Translationnelles, MINT, Université Angers, INSERM 1066, CNRS 6021, Angers49100, France
| | - Elise Lepeltier
- Micro et Nanomédecines Translationnelles, MINT, Université Angers, INSERM 1066, CNRS 6021, Angers49100, France
| | - Guillaume Bastiat
- Micro et Nanomédecines Translationnelles, MINT, Université Angers, INSERM 1066, CNRS 6021, Angers49100, France
| | - Pascal Pigeon
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), Paris75005, France
- Chimie Paris Tech, PSL University, Paris75005, France
| | | | - Nolwenn Lautram
- Micro et Nanomédecines Translationnelles, MINT, Université Angers, INSERM 1066, CNRS 6021, Angers49100, France
| | - Anne Vessières
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), Paris75005, France
| | - Gerard Jaouen
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), Paris75005, France
- Chimie Paris Tech, PSL University, Paris75005, France
| | - Catherine Passirani
- Micro et Nanomédecines Translationnelles, MINT, Université Angers, INSERM 1066, CNRS 6021, Angers49100, France
| |
Collapse
|
3
|
Vessières A, McGlinchey MJ. Bioorganometallic Chemistry – the early years. J Organomet Chem 2023. [DOI: 10.1016/j.jorganchem.2023.122623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
4
|
McGlinchey MJ. The Effect of Benzannulation on the Structures, Reactivity and Molecular Dynamics of Indenes, Pentalenes, Azulenes and Related Molecules. Molecules 2022; 27:molecules27123882. [PMID: 35745005 PMCID: PMC9229948 DOI: 10.3390/molecules27123882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/08/2022] [Accepted: 06/15/2022] [Indexed: 12/02/2022] Open
Abstract
The stabilising effect of benzannulation on isoindenes formed in the course of sigmatropic shifts of (C5H5)Fe(CO)2 or of organo-silyl groups, and on exocyclic allyl intermediates in the course of haptotropic shifts of organometallic fragments over polycyclic skeletons (fluorene, cyclopenta[def]phenanthrene, syn and anti dibenzpentalenes) is exemplified. This approach led to the development of the first organometallic molecular brake. Benzyne cycloadditions to anthracenes to form triptycenes also led to unexpected or multiple adducts that were characterised by X-ray crystallography. Synthetic routes to the previously elusive benz[cd]azulene system are presented. Finally, the complete mechanism of the stepwise assembly of dispiro- and diindenyltetracenes from fluorenylallenes is presented, whereby every intermediate has been unambiguously structurally characterised.
Collapse
Affiliation(s)
- Michael J McGlinchey
- School of Chemistry, University College Dublin, Belfield, D04 V1W8 Dublin 4, Ireland
| |
Collapse
|
5
|
Wang Y, Pigeon P, Li W, Yan J, Dansette PM, Othman M, McGlinchey MJ, Jaouen G. Diversity-oriented synthesis and bioactivity evaluation of N-substituted ferrocifen compounds as novel antiproliferative agents against TNBC cancer cells. Eur J Med Chem 2022; 234:114202. [DOI: 10.1016/j.ejmech.2022.114202] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 02/11/2022] [Accepted: 02/12/2022] [Indexed: 11/26/2022]
|
6
|
Abstract
Platinum(II)-based drugs are widely used for the treatment of solid tumors, especially in combination protocols. Severe side effects and occurrence of resistance are the major limitations to their clinical use. To overcome these drawbacks, a plethora of Pt(IV) derivatives, acting as anticancer prodrugs, have been designed, synthesized and preclinically (often only in vitro) tested. Here, we summarize the recent progress in the development and understanding of the chemical properties and biochemical features of these Pt(IV) prodrugs, especially those containing bioactive molecules as axial ligands, acting as multi-functional agents. Even though no such prodrugs have been yet approved for clinical use, many show encouraging pharmacological profiles. Thus, a better understanding of their features is a promising approach towards improving the available Pt-based anticancer agents.
Collapse
Affiliation(s)
- Mauro Ravera
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale Michel 11, Alessandria, Italy.
| | - Elisabetta Gabano
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale Michel 11, Alessandria, Italy.
| | | | - Domenico Osella
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale Michel 11, Alessandria, Italy.
| |
Collapse
|
7
|
Zhong YJ, Liao JH, Chiu TH, Wu YY, Kahlal S, McGlinchey MJ, Saillard JY, Liu CW. Intercluster exchanges leading to hydride-centered bimetallic clusters: a multi-NMR, X-ray crystallographic, and DFT study. Dalton Trans 2021; 50:4727-4734. [PMID: 33734266 DOI: 10.1039/d1dt00072a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Encouraged by the successful syntheses of alloy nanoclusters (or nanoparticles) via intercluster (or interparticle) reactions, herein we apply this methodology to prepare a series of bimetallic hydride clusters. Mixing of two clusters, [Ag7(H){E2P(OiPr)2}6] (E = S, 1; Se, 3) and [Cu7(H){E2P(OiPr)2}6] (E = S, 2; Se, 4), yields two series of hydride-centered bimetallic clusters, [CuxAg7-x(H){E2P(OiPr)2}6] (x = 0-7; E = S, 5; Se, 6). Their compositions are fully characterized by positive-mode ESI-MS spectrometry, multi-NMR spectroscopy, and the structures of [Cu6Ag(H){S2P(OiPr)2}6] (5a) and [CuAg6(H){Se2P(OiPr)2}6] (6a) by single crystal X-ray diffraction. The presence of individual compounds in solution is the result of a (dynamic) chemical equilibrium primarily driven by metal exchanges. In fact, the process of inter-cluster exchange of 1 and 2 leading to hydride-centered bimetallic clusters 5 can be monitored by concentration-dependent 31P NMR spectroscopy of which the higher concentration of 1 in the reaction, the closer to its resonance will be the distribution, in accord with Le Chatelier's principle. The dynamic equilibrium is further confirmed by 2D exchange spectroscopy that reveals a stepwise process involving one metal exchange at a time. DFT calculations on a model series of clusters 6 show that silver prefers occupying the inner tetrahedral positions, while copper favors capping positions, in full agreement with the crystal structure of 5a and 6a.
Collapse
Affiliation(s)
- Yu-Jie Zhong
- Department of Chemistry, National Dong Hwa University, Hualien 974301, Taiwan, Republic of China.
| | | | | | | | | | | | | | | |
Collapse
|
8
|
Nikitin K, Ortin Y, McGlinchey MJ. Dynamics of a Molecular Rotor Exhibiting Local Directional Rotational Preference within Each Enantiomer. J Phys Chem A 2021; 125:2061-2068. [PMID: 33666434 PMCID: PMC8154598 DOI: 10.1021/acs.jpca.0c08476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Directional internal rotation in molecular systems, generally controlled by chirality, is known to occur in natural and artificial systems driven by light or fueled chemically, but spontaneous directional molecular rotation is believed to be forbidden. We have designed a molecular rotor, whereby ferrocene and triptycene linked by a methylene bridge provide two rotational degrees of freedom. On the basis of experimental observations, in conjunction with computational data, we show that the two different modes of rotation are strongly coupled and the spatial orientation of the bistable ferrocene moiety controls the barrier to its own rotation about the triptycene axis. It is proposed that the barrier to clockwise 120° rotation across each individual triptycene blade is lower in the M-enantiomer and for counterclockwise 120° rotation, it is lower in its P-counterpart. These findings demonstrate the possibility of locally preferred thermal directional intramolecular rotation for each dynamically interconverting enantiomer.
Collapse
Affiliation(s)
- Kirill Nikitin
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Yannick Ortin
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | | |
Collapse
|
9
|
Vessières A, Wang Y, McGlinchey MJ, Jaouen G. Multifaceted chemical behaviour of metallocene (M = Fe, Os) quinone methides. Their contribution to biology. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213658] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
10
|
Cunningham L, Wang Y, Nottingham C, Pagsulingan J, Jaouen G, McGlinchey MJ, Guiry PJ. Enantioselective Synthesis of Planar Chiral Ferrocifens that Show Chiral Discrimination in Antiproliferative Activity on Breast Cancer Cells. Chembiochem 2020; 21:2974-2981. [PMID: 32453493 DOI: 10.1002/cbic.202000311] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 05/25/2020] [Indexed: 11/09/2022]
Abstract
The design and first enantioselective synthesis of a series of chiral ferrocifens and ferrociphenols was realised by enantioselective palladium-catalysed intramolecular direct C-H bond activation followed by McMurry coupling. Biological evaluation revealed moderate anticancer activities on breast cancer cells and evidence of chiral discrimination between enantiomers. Treatment of the novel ferrocifens with Ag2 O revealed that these systems are unable to form a neutral quinone methide, yet still demonstrate marked antiproliferative properties against both the hormone-dependent MCF-7 and hormone-independent MDA-MB-231 cell lines. This bioactivity arises from two mechanisms: Fenton-type chemistry and the anti-estrogenic activity associated with the tamoxifen-like structure.
Collapse
Affiliation(s)
- Laura Cunningham
- Centre for Synthesis and Chemical Biology, School of Chemistry, University College Dublin Belfield, Dublin, 4, Ireland.,Synthesis and Solid-State Pharmaceutical Centre (SSPC), School of Chemistry, University College Dublin Belfield, Dublin 4, Ireland
| | - Yong Wang
- PSL, Chimie ParisTech, 11 rue Pierre et Marie Curie, 75005, Paris, France.,Sorbonne Université, UPMC Univ. Paris 6, UMR 8232 CNRS IPCM, Place Jussieu, 75005, Paris, France
| | - Chris Nottingham
- Centre for Synthesis and Chemical Biology, School of Chemistry, University College Dublin Belfield, Dublin, 4, Ireland
| | - Jammah Pagsulingan
- Centre for Synthesis and Chemical Biology, School of Chemistry, University College Dublin Belfield, Dublin, 4, Ireland
| | - Gérard Jaouen
- PSL, Chimie ParisTech, 11 rue Pierre et Marie Curie, 75005, Paris, France.,Sorbonne Université, UPMC Univ. Paris 6, UMR 8232 CNRS IPCM, Place Jussieu, 75005, Paris, France
| | - Michael J McGlinchey
- Centre for Synthesis and Chemical Biology, School of Chemistry, University College Dublin Belfield, Dublin, 4, Ireland
| | - Patrick J Guiry
- Centre for Synthesis and Chemical Biology, School of Chemistry, University College Dublin Belfield, Dublin, 4, Ireland.,Synthesis and Solid-State Pharmaceutical Centre (SSPC), School of Chemistry, University College Dublin Belfield, Dublin 4, Ireland
| |
Collapse
|
11
|
McGlinchey MJ, Nikitin K. Palladium-Catalysed Coupling Reactions En Route to Molecular Machines: Sterically Hindered Indenyl and Ferrocenyl Anthracenes and Triptycenes, and Biindenyls. Molecules 2020; 25:molecules25081950. [PMID: 32331469 PMCID: PMC7222022 DOI: 10.3390/molecules25081950] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 04/18/2020] [Accepted: 04/19/2020] [Indexed: 01/11/2023] Open
Abstract
Pd-catalysed Stille and Suzuki cross-couplings were used to prepare 9-(3-indenyl)-, 6, and 9-(2-indenyl)-anthracene, 7; addition of benzyne led to the 9-Indenyl-triptycenes, 8 and 9. In 6, [4 + 2] addition also occurred to the indenyl substituent. Reaction of 6 through 9 with Cr(CO)6 or Re2(CO)10 gave their M(CO)3 derivatives, where the Cr or Re was complexed to a six- or five-membered ring, respectively. In the 9-(2-indenyl)triptycene complexes, slowed rotation of the paddlewheel on the NMR time-scale was apparent in the η5-Re(CO)3 case and, when the η6-Cr(CO)3 was deprotonated, the resulting haptotropic shift of the metal tripod onto the five-membered ring also blocked paddlewheel rotation, thus functioning as an organometallic molecular brake. Suzuki coupling of ferrocenylboronic acid to mono- or dibromoanthracene yielded the ferrocenyl anthracenes en route to the corresponding triptycenes in which stepwise hindered rotations of the ferrocenyl groups behaved like molecular dials. CuCl2-mediated coupling of methyl- and phenyl-indenes yielded their rac and meso 2,2′-biindenyls; surprisingly, however, the apparently sterically crowded rac 2,2′-Bis(9-triptycyl)biindenyl functioned as a freely rotating set of molecular gears. The predicted high rotation barrier in 9-phenylanthracene was experimentally validated via the Pd-catalysed syntheses of di(3-fluorophenyl)anthracene and 9-(1-naphthyl)-10-phenylanthracene.
Collapse
|
12
|
Tonolo F, Salmain M, Scalcon V, Top S, Pigeon P, Folda A, Caron B, McGlinchey MJ, Toillon R, Bindoli A, Jaouen G, Vessières A, Rigobello MP. Small Structural Differences between Two Ferrocenyl Diphenols Determine Large Discrepancies of Reactivity and Biological Effects. ChemMedChem 2019; 14:1717-1726. [DOI: 10.1002/cmdc.201900430] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/04/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Federica Tonolo
- Dipartimento di Scienze BiomedicheUniversità di Padova Via Ugo Bassi 58/b 35131 Padova Italy
| | - Michèle Salmain
- Sorbonne UniversitéCNRS, IPCM 4 Place Jussieu 75005 Paris France
| | - Valeria Scalcon
- Dipartimento di Scienze BiomedicheUniversità di Padova Via Ugo Bassi 58/b 35131 Padova Italy
| | - Siden Top
- Sorbonne UniversitéCNRS, IPCM 4 Place Jussieu 75005 Paris France
| | - Pascal Pigeon
- Sorbonne UniversitéCNRS, IPCM 4 Place Jussieu 75005 Paris France
- Chimie ParisTechPSL University 11 rue Pierre et Marie Curie 75005 Paris France
| | - Alessandra Folda
- Dipartimento di Scienze BiomedicheUniversità di Padova Via Ugo Bassi 58/b 35131 Padova Italy
| | - Benoit Caron
- Sorbonne UniversitéISTeP, ALIPP6 4 Place Jussieu 75005 Paris France
| | | | | | - Alberto Bindoli
- Istituto di Neuroscienze (CNR) Sezione di Padovac/o Dipartimento di Scienze Biomediche Via Ugo Bassi 58/b 35131 Padova Italy
| | - Gérard Jaouen
- Sorbonne UniversitéCNRS, IPCM 4 Place Jussieu 75005 Paris France
- Chimie ParisTechPSL University 11 rue Pierre et Marie Curie 75005 Paris France
| | - Anne Vessières
- Sorbonne UniversitéCNRS, IPCM 4 Place Jussieu 75005 Paris France
| | - Maria Pia Rigobello
- Dipartimento di Scienze BiomedicheUniversità di Padova Via Ugo Bassi 58/b 35131 Padova Italy
| |
Collapse
|
13
|
|
14
|
Wang Y, Pigeon P, Top S, Sanz García J, Troufflard C, Ciofini I, McGlinchey MJ, Jaouen G. Atypical Lone Pair–π Interaction with Quinone Methides in a Series of Imido‐Ferrociphenol Anticancer Drug Candidates. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yong Wang
- PSL, Chimie ParisTech 11 rue Pierre et Marie Curie F-75005 Paris France
- Sorbonne Université, UPMC Univ Paris 6, UMR 8232 CNRS, IPCM place Jussieu F-75005 Paris France
| | - Pascal Pigeon
- PSL, Chimie ParisTech 11 rue Pierre et Marie Curie F-75005 Paris France
- Sorbonne Université, UPMC Univ Paris 6, UMR 8232 CNRS, IPCM place Jussieu F-75005 Paris France
| | - Siden Top
- Sorbonne Université, UPMC Univ Paris 6, UMR 8232 CNRS, IPCM place Jussieu F-75005 Paris France
| | - Juan Sanz García
- PSL, Chimie ParisTech 11 rue Pierre et Marie Curie F-75005 Paris France
| | - Claire Troufflard
- Sorbonne Université, UPMC Univ Paris 6, UMR 8232 CNRS, IPCM place Jussieu F-75005 Paris France
| | - Ilaria Ciofini
- PSL, Chimie ParisTech 11 rue Pierre et Marie Curie F-75005 Paris France
| | | | - Gérard Jaouen
- PSL, Chimie ParisTech 11 rue Pierre et Marie Curie F-75005 Paris France
- Sorbonne Université, UPMC Univ Paris 6, UMR 8232 CNRS, IPCM place Jussieu F-75005 Paris France
| |
Collapse
|
15
|
Wang Y, Pigeon P, Top S, Sanz García J, Troufflard C, Ciofini I, McGlinchey MJ, Jaouen G. Atypical Lone Pair-π Interaction with Quinone Methides in a Series of Imido-Ferrociphenol Anticancer Drug Candidates. Angew Chem Int Ed Engl 2019; 58:8421-8425. [PMID: 30977944 DOI: 10.1002/anie.201902456] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 03/29/2019] [Indexed: 11/10/2022]
Abstract
Ferrociphenols, especially those possessing a heterocycle at the terminus of an aliphatic chain, display strong anticancer activity through a novel redox mechanism that generates active metabolites such as quinone methides (QMs). X-ray crystallography and UV/Vis spectroscopy reveal that the specific lone pair (lp)-π interaction between a carbonyl group of the imide and the quinone motif of the QM plays an important role in the exceptional cytotoxic behaviour of their imido-ferrociphenol precursors. This intramolecular lp-π interaction markedly enhanced the stability of the QMs and lowered the pKa values of the corresponding phenol/phenolate couples. As the first example of such a non-covalent interaction that stabilizes QMs remotely, it not only expands the scope of the lp-π interaction in supramolecular chemistry, but also represents a new mode of stabilization of a QM. This unprecedented application of lp-π interactions in imido-ferrociphenol anticancer drug candidates may also have great potential in drug discovery and organocatalyst design.
Collapse
Affiliation(s)
- Yong Wang
- PSL, Chimie ParisTech, 11 rue Pierre et Marie Curie, F-75005, Paris, France.,Sorbonne Université, UPMC Univ Paris 6, UMR 8232 CNRS, IPCM, place Jussieu, F-75005, Paris, France
| | - Pascal Pigeon
- PSL, Chimie ParisTech, 11 rue Pierre et Marie Curie, F-75005, Paris, France.,Sorbonne Université, UPMC Univ Paris 6, UMR 8232 CNRS, IPCM, place Jussieu, F-75005, Paris, France
| | - Siden Top
- Sorbonne Université, UPMC Univ Paris 6, UMR 8232 CNRS, IPCM, place Jussieu, F-75005, Paris, France
| | - Juan Sanz García
- PSL, Chimie ParisTech, 11 rue Pierre et Marie Curie, F-75005, Paris, France
| | - Claire Troufflard
- Sorbonne Université, UPMC Univ Paris 6, UMR 8232 CNRS, IPCM, place Jussieu, F-75005, Paris, France
| | - Ilaria Ciofini
- PSL, Chimie ParisTech, 11 rue Pierre et Marie Curie, F-75005, Paris, France
| | | | - Gérard Jaouen
- PSL, Chimie ParisTech, 11 rue Pierre et Marie Curie, F-75005, Paris, France.,Sorbonne Université, UPMC Univ Paris 6, UMR 8232 CNRS, IPCM, place Jussieu, F-75005, Paris, France
| |
Collapse
|
16
|
Gabano E, Ravera M, Perin E, Zanellato I, Rangone B, McGlinchey MJ, Osella D. Synthesis and characterization of cyclohexane-1R,2R-diamine-based Pt(iv) dicarboxylato anticancer prodrugs: their selective activity against human colon cancer cell lines. Dalton Trans 2019; 48:435-445. [PMID: 30539948 DOI: 10.1039/c8dt03950j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Three pairs of asymmetric dicarboxylato derivatives based on the cisplatin and oxaliplatin-like skeletons have been synthesized de novo or re-synthesized. The axial ligands consist of one medium-chain fatty acid (MCFA), namely clofibrate (i.e. 2-(p-chlorophenoxy)-2-methylpropionic acid, CA), heptanoate (HA) or octanoate (OA), respectively, and an inactive acetato ligand that imparts acceptable water solubility to such conjugates. Stability tests provided evidence for the partial formation of two hydrolyzed products, corresponding to two monoaqua diastereomers derived from the substitution of an equatorial chlorido ligand with a water molecule. The complexes have been tested on three different colon cancer cell lines having different histological history, and also on the cisplatin-sensitive A2780 ovarian cancer cell line for comparison. This allowed the evaluation not only of the increase in activity on passing from Pt(ii) to Pt(iv) derivatives, but also the selectivity towards colon cancer cells brought about by the cyclohexane-1R,2R-diamine carrier ligand.
Collapse
Affiliation(s)
- E Gabano
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale Michel 11, 15121 Alessandria, Italy.
| | | | | | | | | | | | | |
Collapse
|
17
|
Nikitin K, Müller-Bunz H, Guiry PJ, McGlinchey MJ. A mechanistic rationale for the outcome of Sonogashira cross-coupling of 9-bromoanthracene and ethynyltrimethylsilane: An unexpected product 4-(9-anthracenyl)-1,3-bis(trimethylsilyl)-3-en-1-yne. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2018.10.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
18
|
Nikitin K, Ortin Y, Müller-Bunz H, Gilheany DG, McGlinchey MJ. Syntheses, Structures and Dynamics of 9-(Ferrocenylmethyl)anthracene and Related Molecular Gears: Phosphorus to the Rescue! European J Org Chem 2018. [DOI: 10.1002/ejoc.201800938] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kirill Nikitin
- School of Chemistry; University College Dublin; 4 Belfield, Dublin Ireland
| | - Yannick Ortin
- School of Chemistry; University College Dublin; 4 Belfield, Dublin Ireland
| | - Helge Müller-Bunz
- School of Chemistry; University College Dublin; 4 Belfield, Dublin Ireland
| | - Declan G. Gilheany
- School of Chemistry; University College Dublin; 4 Belfield, Dublin Ireland
| | | |
Collapse
|
19
|
Nikitin K, Ortin Y, Müller-Bunz H, Gilheany DG, McGlinchey MJ. Cover Feature: Syntheses, Structures and Dynamics of 9-(Ferrocenylmethyl)anthracene and Related Molecular Gears: Phosphorus to the Rescue! (Eur. J. Org. Chem. 38/2018). European J Org Chem 2018. [DOI: 10.1002/ejoc.201801328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kirill Nikitin
- School of Chemistry; University College Dublin; 4 Belfield, Dublin Ireland
| | - Yannick Ortin
- School of Chemistry; University College Dublin; 4 Belfield, Dublin Ireland
| | - Helge Müller-Bunz
- School of Chemistry; University College Dublin; 4 Belfield, Dublin Ireland
| | - Declan G. Gilheany
- School of Chemistry; University College Dublin; 4 Belfield, Dublin Ireland
| | | |
Collapse
|
20
|
McGlinchey MJ. Hexaethylbenzene: A Sterically Crowded Arene and Conformationally Versatile Ligand. Chempluschem 2018; 83:480-499. [DOI: 10.1002/cplu.201800045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 03/14/2018] [Indexed: 11/06/2022]
|
21
|
Wang Y, Dansette PM, Pigeon P, Top S, McGlinchey MJ, Mansuy D, Jaouen G. A new generation of ferrociphenols leads to a great diversity of reactive metabolites, and exhibits remarkable antiproliferative properties. Chem Sci 2017; 9:70-78. [PMID: 29629075 PMCID: PMC5870192 DOI: 10.1039/c7sc04213b] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 11/09/2017] [Indexed: 12/22/2022] Open
Abstract
Two chemotypes of quinone methide pathways from a single substrate are reported, which may be linked to its remarkable antiproliferative activity.
Organometallic compounds bearing the redox motif [ferrocenyl-ene-phenol] have very promising antiproliferative properties which have been further improved by incorporating pertinent substituents able to engender new mechanisms. Here we show that novel ferrociphenols bearing a hydroxypropyl chain exhibit strong antiproliferative effects, in most cases much better than those of cisplatin, tamoxifen, or of previously described ferrociphenols devoid of this terminal OH. This is illustrated, in the case of one of these compounds, by its IC50 values of 110 nM for MDA-MB-231 triple negative breast cancer cells and of 300 nM for cisplatin-resistant A2780cisR human ovarian cancer cells, and by its GI50 values lower than 100 nM towards a series of melanoma and renal cancer cell lines of the NCI-60 panel. Interestingly, oxidative metabolism of these hydroxypropyl-ferrociphenols yields two kinds of quinone methides (QMs) that readily react with various nucleophiles, such as glutathione, to give 1,6- and 1,8-adducts. Protonation of these quinone methides generates numerous reactive metabolites leading eventually to many rearrangement and cleavage products. This unprecedented and fully characterized metabolic profile involving a wide range of electrophilic metabolites that should react with cell macromolecules may be linked to the remarkable profile of antiproliferative activities of this new series. Indeed, the great diversity of unexpected reactive metabolites found upon oxidation will allow them to adapt to various situations present in the cancer cell. These data initiate a novel strategy for the rational design of anticancer molecules, thus opening the way to new organometallic potent anticancer drug candidates for the treatment of chemoresistant cancers.
Collapse
Affiliation(s)
- Yong Wang
- PSL , Chimie ParisTech , 11 rue Pierre et Marie Curie , F-75005 Paris , France.,Sorbonne Universités , UPMC Univ Paris 6 , UMR 8232 CNRS , IPCM , Place Jussieu , F-75005 Paris , France . ;
| | - Patrick M Dansette
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques , UMR 8601 CNRS , Université Paris Descartes , PRES Paris Cité Sorbonne , 45 rue des Saints Pères , 75270 Paris Cedex 06 , France .
| | - Pascal Pigeon
- PSL , Chimie ParisTech , 11 rue Pierre et Marie Curie , F-75005 Paris , France.,Sorbonne Universités , UPMC Univ Paris 6 , UMR 8232 CNRS , IPCM , Place Jussieu , F-75005 Paris , France . ;
| | - Siden Top
- Sorbonne Universités , UPMC Univ Paris 6 , UMR 8232 CNRS , IPCM , Place Jussieu , F-75005 Paris , France . ;
| | - Michael J McGlinchey
- UCD School of Chemistry and Chemical Biology , University College Dublin , Belfield , Dublin 4 , Ireland
| | - Daniel Mansuy
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques , UMR 8601 CNRS , Université Paris Descartes , PRES Paris Cité Sorbonne , 45 rue des Saints Pères , 75270 Paris Cedex 06 , France .
| | - Gérard Jaouen
- PSL , Chimie ParisTech , 11 rue Pierre et Marie Curie , F-75005 Paris , France.,Sorbonne Universités , UPMC Univ Paris 6 , UMR 8232 CNRS , IPCM , Place Jussieu , F-75005 Paris , France . ;
| |
Collapse
|
22
|
Pigeon P, Wang Y, Top S, Najlaoui F, Garcia Alvarez MC, Bignon J, McGlinchey MJ, Jaouen G. A New Series of Succinimido-ferrociphenols and Related Heterocyclic Species Induce Strong Antiproliferative Effects, Especially against Ovarian Cancer Cells Resistant to Cisplatin. J Med Chem 2017; 60:8358-8368. [DOI: 10.1021/acs.jmedchem.7b00743] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Pascal Pigeon
- PSL, Chimie ParisTech, 11 Rue Pierre et Marie Curie, F-75005 Paris, France
- UPMC
Univ Paris 6, UMR 8232 CNRS, IPCM, Sorbonne Universités, Place Jussieu, F-75005 Paris, France
| | - Yong Wang
- PSL, Chimie ParisTech, 11 Rue Pierre et Marie Curie, F-75005 Paris, France
- UPMC
Univ Paris 6, UMR 8232 CNRS, IPCM, Sorbonne Universités, Place Jussieu, F-75005 Paris, France
| | - Siden Top
- UPMC
Univ Paris 6, UMR 8232 CNRS, IPCM, Sorbonne Universités, Place Jussieu, F-75005 Paris, France
| | - Feten Najlaoui
- UPMC
Univ Paris 6, UMR 8232 CNRS, IPCM, Sorbonne Universités, Place Jussieu, F-75005 Paris, France
| | - Maria Concepcion Garcia Alvarez
- Centre
de Recherche de Gif, Institut de Chimie des Substances Naturelles,
UPR 2301 du CNRS, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - Jérôme Bignon
- Centre
de Recherche de Gif, Institut de Chimie des Substances Naturelles,
UPR 2301 du CNRS, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - Michael J. McGlinchey
- UCD
School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Gérard Jaouen
- PSL, Chimie ParisTech, 11 Rue Pierre et Marie Curie, F-75005 Paris, France
- UPMC
Univ Paris 6, UMR 8232 CNRS, IPCM, Sorbonne Universités, Place Jussieu, F-75005 Paris, France
| |
Collapse
|
23
|
Harrington LE, Britten JF, Casey M, Grealis J, Ortin Y, Müller-Bunz H, McGlinchey MJ. Protonation of Tetraphenyl- and 2,3,4-Triphenylcyclopentadienone - An NMR and X-ray Crystallographic Study. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - James F. Britten
- Department of Chemistry; McMaster University; L8S 4M1 Hamilton ON Canada
| | - Michael Casey
- School of Chemistry; University College Dublin; Belfield 4 Dublin Ireland
| | - John Grealis
- School of Chemistry; University College Dublin; Belfield 4 Dublin Ireland
| | - Yannick Ortin
- School of Chemistry; University College Dublin; Belfield 4 Dublin Ireland
| | - Helge Müller-Bunz
- School of Chemistry; University College Dublin; Belfield 4 Dublin Ireland
| | | |
Collapse
|
24
|
Nottingham C, Müller-Bunz H, McGlinchey MJ, Guiry PJ. Controlling the Reactivity of Ferrocenyl Carbocations: Routes to Enantiomerically Pure Chlorophosphites and Solid-State Characterization of a Benzopentalene Dimer. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700430] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Chris Nottingham
- Centre for Synthesis and Chemical Biology; School of Chemistry; University College Dublin; Belfield 4 Dublin Ireland
| | - Helge Müller-Bunz
- Centre for Synthesis and Chemical Biology; School of Chemistry; University College Dublin; Belfield 4 Dublin Ireland
| | - Michael J. McGlinchey
- Centre for Synthesis and Chemical Biology; School of Chemistry; University College Dublin; Belfield 4 Dublin Ireland
| | - Patrick J. Guiry
- Centre for Synthesis and Chemical Biology; School of Chemistry; University College Dublin; Belfield 4 Dublin Ireland
| |
Collapse
|
25
|
Harrington LE, Britten JF, Nikitin K, McGlinchey MJ. A Synthetic, X-ray, NMR Spectroscopy and DFT Study of β-Naphthil Dihydrazone, Di(β-naphthyl)acetylene, Tetra(β-naphthyl)cyclopentadienone, and Hexa(β-naphthyl)-benzene: C 6
(C 10
H 7
) 6
Is a Disordered Molecular Propeller. Chempluschem 2017; 82:433-441. [DOI: 10.1002/cplu.201600512] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 12/22/2016] [Indexed: 11/11/2022]
Affiliation(s)
| | - James F. Britten
- Department of Chemistry; McMaster University; Hamilton ON L8S 4M1 Canada
| | - Kirill Nikitin
- School of Chemistry; University College Dublin; Belfield Dublin 4 Ireland
| | | |
Collapse
|
26
|
Wang Y, Pigeon P, McGlinchey MJ, Top S, Jaouen G. Synthesis and antiproliferative evaluation of novel hydroxypropyl-ferrociphenol derivatives, resulting from the modification of hydroxyl groups. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2016.09.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
27
|
Gormen M, Pigeon P, Wang Y, Vessières A, Top S, Martial F, Gros C, McGlinchey MJ, Jaouen G. Side-Chain Effects on the 1-(Bis-aryl-methylidene)-[3]ferrocenophane Skeleton: Antiproliferative Activity against TNBC Cancer Cells and Comparison with the Acyclic Ferrocifen Series. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201601088] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Meral Gormen
- PSL; Chimie ParisTech; 11 rue Pierre et Marie Curie 75005 Paris France
| | - Pascal Pigeon
- PSL; Chimie ParisTech; 11 rue Pierre et Marie Curie 75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06; UMR 8232; IPCM; CNRS; 75005 Paris France
| | - Yong Wang
- Sorbonne Universités; UPMC Univ Paris 06; UMR 8232; IPCM; CNRS; 75005 Paris France
| | - Anne Vessières
- Sorbonne Universités; UPMC Univ Paris 06; UMR 8232; IPCM; CNRS; 75005 Paris France
| | - Siden Top
- Sorbonne Universités; UPMC Univ Paris 06; UMR 8232; IPCM; CNRS; 75005 Paris France
| | - Franck Martial
- Sorbonne Universités; UPMC Univ Paris 06; UMR 8232; IPCM; CNRS; 75005 Paris France
| | - Christina Gros
- PSL; Chimie ParisTech; 11 rue Pierre et Marie Curie 75005 Paris France
| | - Michael J. McGlinchey
- UCD School of Chemistry and Chemical Biology; University College Dublin; Belfield Dublin 4 Ireland
| | - Gérard Jaouen
- PSL; Chimie ParisTech; 11 rue Pierre et Marie Curie 75005 Paris France
- Sorbonne Universités; UPMC Univ Paris 06; UMR 8232; IPCM; CNRS; 75005 Paris France
| |
Collapse
|
28
|
Moore A, Ostermann J, Müller-Bunz H, Ortin Y, McGlinchey MJ. Metal-stabilized carbocations derived from monoterpenes: dicobalt hexacarbonyl complexes of alkynyl-verbenols. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.05.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
29
|
Harris M, Brusey SA, Moore A, Ortin Y, Müller-Bunz H, Manca G, Mealli C, McGlinchey MJ. [Co 2 (CO) 6 (Alkynyl)] Complexes of Dibenzosuberyl and Dibenzosuberenyl Carbocations: Dibenzotropylium or Dibenzoheptafulvene? Chempluschem 2016; 81:292-306. [PMID: 31968781 DOI: 10.1002/cplu.201500477] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 11/26/2015] [Indexed: 11/09/2022]
Abstract
The reaction of dibenzo[a,d]cycloheptan-5-one (dibenzosuberone) and dibenzo[a,d]cyclohept-10-en-5-one (dibenzosuberenone) with aryl- or trimethylsilylacetylides led to the formation of the corresponding alkynyldibenzosuberols and alkynyldibenzosuberenols. Treatment with dicobalt octacarbonyl and then with bis(diphenylphosphino)methane (dppm) furnished the corresponding [Co2 (CO)4 (dppm)(alkynol)] clusters 25 and 29. Upon protonation with HBF4 at 203 K to generate the relevant cobalt-stabilised cations, the dibenzosuberyl system 30 exhibited fluxionality such that the cation migrated between cobalt centres. Variable-temperature 31 P NMR spectroscopy revealed a barrier of approximately 12.5 kcal mol-1 . In contrast, in the supposedly aromatic [Co2 (CO)4 (dppm)(dibenzosuberenyl)]+ cation (31), which would be expected to have less need of cobalt stabilisation, the barrier was too high to be measured experimentally, but is certainly in excess of 16 kcal mol-1 . These data were rationalised by DFT calculations on the structures and energies of the relevant ground states and transition states, which suggested that the nonplanar alkynyldibenzosuberenyl moiety in 31 is better regarded as a neutral dibenzoheptafulvene coordinated to a cationic alkynyl-dicobalt cluster. The question of the bonding of both aromatic and antiaromatic cations to alkyne-dicobalt clusters is considered, and it is proposed that their stabilities, when complexed, parallel the inversion of (4n+2) π and 4n π systems seen under photochemical conditions.
Collapse
Affiliation(s)
- Michelle Harris
- School of Chemistry, University College Dublin, Belfield, Dublin, 4, Ireland
| | - Sarah A Brusey
- School of Chemistry, University College Dublin, Belfield, Dublin, 4, Ireland
| | - Angela Moore
- School of Chemistry, University College Dublin, Belfield, Dublin, 4, Ireland
| | - Yannick Ortin
- School of Chemistry, University College Dublin, Belfield, Dublin, 4, Ireland
| | - Helge Müller-Bunz
- School of Chemistry, University College Dublin, Belfield, Dublin, 4, Ireland
| | - Gabriele Manca
- Istituto di Chimica dei Composti Organometallici, ICCOM-CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy
| | - Carlo Mealli
- Istituto di Chimica dei Composti Organometallici, ICCOM-CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy
| | | |
Collapse
|
30
|
Moore A, Ostermann J, Ortin Y, McGlinchey MJ. Organometallic derivatives of natural products: dicobalt hexacarbonyl complexes of geranyl-alkynes. NEW J CHEM 2016. [DOI: 10.1039/c6nj00622a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Di- and tri-cobalt carbonyl clusters bearing geranyl or neryl substituents offer potential routes to novel terpenoid systems.
Collapse
Affiliation(s)
- Angela Moore
- School of Chemistry
- University College Dublin
- Ireland
| | | | | | | |
Collapse
|
31
|
Wang Y, Pigeon P, Top S, McGlinchey MJ, Jaouen G. Organometallic Antitumor Compounds: Ferrocifens as Precursors to Quinone Methides. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503048] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
32
|
Wang Y, Pigeon P, Top S, McGlinchey MJ, Jaouen G. Organometallic Antitumor Compounds: Ferrocifens as Precursors to Quinone Methides. Angew Chem Int Ed Engl 2015; 54:10230-3. [DOI: 10.1002/anie.201503048] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Indexed: 02/05/2023]
|
33
|
Nikitin K, Muldoon J, Müller-Bunz H, McGlinchey MJ. A Ferrocenyl Kaleidoscope: Slow Interconversion of Six Diastereo-atropisomers of 2,6-Di-tert-butyl-9,10-diferrocenyltriptycene. Chemistry 2015; 21:4664-70. [DOI: 10.1002/chem.201405968] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Indexed: 11/10/2022]
|
34
|
Brydges S, Gildea B, Grealis JP, Müller-Bunz H, Stradiotto M, Casey M, McGlinchey MJ. Organic and organometallic derivatives of pentaphenylbenzene, C6Ph5X: correlation of peripheral phenyl ring orientations with the steric bulk of “X”. CAN J CHEM 2013. [DOI: 10.1139/cjc-2013-0257] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A series of C6Ph5X compounds, including X = H, Br, CO2H, CO2R, C[Formula: see text]CPh, cis-BrC=C(Br)Ph, 2-bornenyl, and ferrocenyl, have been characterized by use of X-ray crystallography. Also, the first organometallic complexes of pentaphenylbenzene have been prepared by reaction with chromium hexacarbonyl to yield (η6-C6Ph5H)Cr(CO)3 complexes in which the metal tripod is attached either to an ortho peripheral ring or to the central ring. Crystalline pentaphenylbenzoic acid exists as a hydrogen-bonded dimer; however, the steric bulk of the substituents does not allow the carboxylic acid moieties to be linked directly but instead via two bridging methanol molecules. In the solid state, the orientation of the peripheral rings in bulky C6Ph5X systems is very sensitive to the size of the “X” substituents, such that the twist angle of the para ring responds inversely with increasing bulk of “X”, which drives the ortho rings farther out of the plane of the central ring. The relevance of these observations to correlated motion in molecular propellers, and ultimately to molecular machines, is discussed.
Collapse
Affiliation(s)
- Stacey Brydges
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Brendan Gildea
- School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - John P. Grealis
- School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Helge Müller-Bunz
- School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Mark Stradiotto
- Department of Chemistry, Dalhousie University, Halifax, NS B3H 4J3, Canada
| | - Michael Casey
- School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Michael J. McGlinchey
- School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| |
Collapse
|
35
|
Nikitin K, Müller-Bunz H, McGlinchey MJ. Diels–Alder Reactions of 9-Ferrocenyl- and 9,10-Diferrocenylanthracene: Steric Control of 9,10- versus 1,4-Cycloaddition. Organometallics 2013. [DOI: 10.1021/om400762f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kirill Nikitin
- School of Chemistry and Chemical
Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Helge Müller-Bunz
- School of Chemistry and Chemical
Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Michael J. McGlinchey
- School of Chemistry and Chemical
Biology, University College Dublin, Belfield, Dublin 4, Ireland
| |
Collapse
|
36
|
McGlinchey MJ, Hopf H. Organic and Organometallic Derivatives of Propargylallene: Syntheses, Structures, Reactivity and Rearrangements. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300250] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
37
|
Grealis JP, Müller-Bunz H, Ortin Y, Casey M, McGlinchey MJ. Synthesis of Isobavachalcone and Some Organometallic Derivatives. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201063] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
38
|
Nikitin K, Bothe C, Müller-Bunz H, Ortin Y, McGlinchey MJ. High and Low Rotational Barriers in Metal Tricarbonyl Complexes of 2- and 3-Indenyl Anthracenes and Triptycenes: Rational Design of Molecular Brakes. Organometallics 2012. [DOI: 10.1021/om300512z] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kirill Nikitin
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Cornelia Bothe
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Helge Müller-Bunz
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Yannick Ortin
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Michael J. McGlinchey
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| |
Collapse
|
39
|
Görmen M, Pigeon P, Hillard EA, Vessières A, Huché M, Richard MA, McGlinchey MJ, Top S, Jaouen G. Synthesis and Antiproliferative Effects of [3]Ferrocenophane Transposition Products and Pinacols Obtained from McMurry Cross-Coupling Reactions. Organometallics 2012. [DOI: 10.1021/om300382h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Meral Görmen
- ENSCP Chimie ParisTech, Laboratoire Charles Friedel
(LCF), 75005 Paris, France
- CNRS, UMR 7223, 75005 Paris, France
| | - Pascal Pigeon
- ENSCP Chimie ParisTech, Laboratoire Charles Friedel
(LCF), 75005 Paris, France
- CNRS, UMR 7223, 75005 Paris, France
| | - Elizabeth A. Hillard
- ENSCP Chimie ParisTech, Laboratoire Charles Friedel
(LCF), 75005 Paris, France
- CNRS, UMR 7223, 75005 Paris, France
| | - Anne Vessières
- ENSCP Chimie ParisTech, Laboratoire Charles Friedel
(LCF), 75005 Paris, France
- CNRS, UMR 7223, 75005 Paris, France
| | - Michel Huché
- ENSCP Chimie ParisTech, Laboratoire Charles Friedel
(LCF), 75005 Paris, France
- CNRS, UMR 7223, 75005 Paris, France
| | - Marie-Aude Richard
- ENSCP Chimie ParisTech, Laboratoire Charles Friedel
(LCF), 75005 Paris, France
- CNRS, UMR 7223, 75005 Paris, France
| | - Michael J. McGlinchey
- UCD School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Siden Top
- ENSCP Chimie ParisTech, Laboratoire Charles Friedel
(LCF), 75005 Paris, France
- CNRS, UMR 7223, 75005 Paris, France
| | - Gérard Jaouen
- ENSCP Chimie ParisTech, Laboratoire Charles Friedel
(LCF), 75005 Paris, France
- CNRS, UMR 7223, 75005 Paris, France
| |
Collapse
|
40
|
Nikitin K, Müller-Bunz H, Ortin Y, McGlinchey MJ. Different rearrangement behaviour of the cation or anion derived from the Diels-Alder adduct of 9-ferrocenylanthracene and 1,4-benzoquinone: ring-opening or paddlewheel formation. Chemistry 2011; 17:14241-7. [PMID: 22076754 DOI: 10.1002/chem.201101854] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Revised: 09/07/2011] [Indexed: 11/08/2022]
Abstract
Prototropic rearrangement of the Diels-Alder adduct (3a) of 9-ferrocenylanthracene and 1,4-benzoquinone potentially furnishes 9-ferrocenyl-1,4-dihydroxytriptycene (3b) incorporating a C(2v) symmetrical paddlewheel moiety. However, reaction of 3a with HBF(4) unexpectedly yields instead 9-ferrocenyl-10-(2,5-dihydroxyphenyl)anthracene (4) via cleavage of the C9-C12 bond to generate initially a ferrocenyl-stabilized cation. Treatment of 3a with sodium hydride and iodomethane yields 1,4-dimethoxy-9-ferrocenyltriptycene (3c) in high yield but, surprisingly, also leads to fission of the C9-C12 bond resulting, after methylation, in the formation of 9-hydroxy-9-ferrocenyl-10-(2-hydroxy-5-methoxyphenyl)dihydroanthracene (12), which readily dehydrates on silica to form 9-ferrocenyl-10-(2-hydroxy-5-methoxyphenyl)anthracene (8). The X-ray crystal structures of 3a, 3c and 4 are reported.
Collapse
Affiliation(s)
- Kirill Nikitin
- School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland.
| | | | | | | |
Collapse
|
41
|
McGlinchey MJ, Milosevic S. From [10]Paracyclophane to Ferrocenophanones: The Search for Molecular Machines and Bio-Organometallic Anticancer Drugs. Isr J Chem 2011. [DOI: 10.1002/ijch.201100080] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
42
|
Milosevic S, Banide EV, Müller-Bunz H, Gilheany DG, McGlinchey MJ. κ1- and κ2-Complexes of Fluorenylidene–Allenyl Phosphines and Phosphine Oxides with Palladium Chloride and Iron Carbonyl: Displacement of Trimethylsilyl by Diphenylphosphino via a Stabilized Carbanion. Organometallics 2011. [DOI: 10.1021/om200357v] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
43
|
O’Donohue P, McAdam CJ, Courtney D, Ortin Y, Müller-Bunz H, Manning AR, McGlinchey MJ, Simpson J. Stilbene analogues incorporating the Co(η4-C4Ph4)(η5-C5H4-) end group. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.01.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
44
|
Ravera M, Gabano E, Sardi M, Ermondi G, Caron G, McGlinchey MJ, Müller-Bunz H, Monti E, Gariboldi MB, Osella D. Synthesis, characterization, structure, molecular modeling studies and biological activity of sterically crowded Pt(II) complexes containing bis(imidazole) ligands. J Inorg Biochem 2011; 105:400-9. [DOI: 10.1016/j.jinorgbio.2010.12.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Revised: 12/01/2010] [Accepted: 12/03/2010] [Indexed: 01/19/2023]
|
45
|
McGlinchey MJ, Hopf H. Reciprocal polyhedra and the Euler relationship: cage hydrocarbons, CH and closo-boranes [BH]. Beilstein J Org Chem 2011; 7:222-33. [PMID: 21499412 PMCID: PMC3063052 DOI: 10.3762/bjoc.7.30] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Accepted: 12/30/2010] [Indexed: 11/23/2022] Open
Abstract
The closo-boranes BxHx+2, or their corresponding anions [BxHx]2− (where x = 5 through 12) and polycycloalkanes CnHn (where n represents even numbers from 6 through 20) exhibit a complementary relationship whereby the structures of the corresponding molecules, e.g., [B6H6]2− and C8H8 (cubane), are based on reciprocal polyhedra. The vertices in the closo-boranes correspond to faces in its polycyclic hydrocarbon counterpart and vice versa. The different bonding patterns in the two series are described. Several of these hydrocarbons (cubane, pentagonal dodecahedrane and the trigonal and pentagonal prismanes) are known while others still remain elusive. Synthetic routes to the currently known CnHn highly symmetrical polyhedral species are briefly summarized and potential routes to those currently unknown are discussed. Finally, the syntheses of the heavier element analogues of cubane and the prismanes are described.
Collapse
Affiliation(s)
- Michael J McGlinchey
- School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | | |
Collapse
|
46
|
McGlinchey MJ, Wong MW. π-Complexed polyfluoroarenes: a reactivity, bonding and spectroscopic study of (η6-C6F6)Cr(η6-C6H6) and related molecules. NEW J CHEM 2011. [DOI: 10.1039/c1nj20194h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
47
|
Pigeon P, Top S, Vessières A, Huché M, Görmen M, El Arbi M, Plamont MA, McGlinchey MJ, Jaouen G. A new series of ferrocifen derivatives, bearing two aminoalkyl chains, with strong antiproliferative effects on breast cancer cells. NEW J CHEM 2011. [DOI: 10.1039/c1nj20192a] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
48
|
Mir MH, Ong JX, Kole GK, Tan GK, McGlinchey MJ, Wu Y, Vittal JJ. Photoreactive gold(i) macrocycles with diphosphine and trans,trans-muconate ligands. Chem Commun (Camb) 2011; 47:11633-5. [DOI: 10.1039/c1cc14442a] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
49
|
Abstract
The calculated phenyl rotation barrier in 9-phenylanthracene has been reported as ~21 kcal mol(-1), but experimental verification of this barrier is limited by its intrinsic symmetry. V-T NMR indicated the barrier to interconversion of the syn (C(2v)) and anti (C(2h)) rotamers of 9,10-bis(3-fluorophenyl)anthracene to be ~21 kcal mol(-1). Likewise, the V-T NMR spectra of 9-(1-naphthyl)-10-phenylanthracene reveal that the rotational barrier of the unsubstituted phenyl ring is at least 21 kcal mol(-1).
Collapse
Affiliation(s)
- Kirill Nikitin
- School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland.
| | | | | | | | | |
Collapse
|
50
|
Nikitin K, Müller-Bunz H, Ortin Y, Muldoon J, McGlinchey MJ. Molecular Dials: Hindered Rotations in Mono- and Diferrocenyl Anthracenes and Triptycenes. J Am Chem Soc 2010; 132:17617-22. [DOI: 10.1021/ja108226p] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kirill Nikitin
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Helge Müller-Bunz
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Yannick Ortin
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Jimmy Muldoon
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Michael J. McGlinchey
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| |
Collapse
|