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Hylland KT, Gerz I, Wragg DS, Øien‐Ødegaard S, Tilset M. The Reactivity of Multidentate Schiff Base Ligands Derived from Bi‐ and Terphenyl Polyamines towards M(II) (M=Ni, Cu, Zn, Cd) and M(III) (M=Co, Y, Lu). Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100170] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Knut Tormodssønn Hylland
- Department of Chemistry University of Oslo P. O. Box 1033 Blindern 0315 Oslo Norway
- Centre for Materials Science and Nanotechnology University of Oslo P.O. Box 1126 Blindern 0316 Oslo Norway
| | - Isabelle Gerz
- Department of Chemistry University of Oslo P. O. Box 1033 Blindern 0315 Oslo Norway
- Centre for Materials Science and Nanotechnology University of Oslo P.O. Box 1126 Blindern 0316 Oslo Norway
| | - David S. Wragg
- Department of Chemistry University of Oslo P. O. Box 1033 Blindern 0315 Oslo Norway
- Centre for Materials Science and Nanotechnology University of Oslo P.O. Box 1126 Blindern 0316 Oslo Norway
| | - Sigurd Øien‐Ødegaard
- Department of Chemistry University of Oslo P. O. Box 1033 Blindern 0315 Oslo Norway
- Centre for Materials Science and Nanotechnology University of Oslo P.O. Box 1126 Blindern 0316 Oslo Norway
| | - Mats Tilset
- Department of Chemistry University of Oslo P. O. Box 1033 Blindern 0315 Oslo Norway
- Centre for Materials Science and Nanotechnology University of Oslo P.O. Box 1126 Blindern 0316 Oslo Norway
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2
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Lei L, Chen Y, Feng Z, Deng C, Xiao Y. Bioinspired manganese complex for room-temperature oxidation of primary amines to imines by t-butyl hydroperoxide. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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3
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Syiemlieh I, Kumar A, Kurbah SD, Lal RA. Synthesis and characterization of [Mn(phen)(H 2 O) 4 ]·SO 4 ·2H 2 O. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.04.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Castro J, Manrique E, Bravo M, Vilanova M, Benito A, Fontrodona X, Rodríguez M, Romero I. A family of manganese complexes containing heterocyclic-based ligands with cytotoxic properties. J Inorg Biochem 2018; 182:124-132. [PMID: 29459271 DOI: 10.1016/j.jinorgbio.2018.01.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 01/16/2018] [Accepted: 01/30/2018] [Indexed: 01/09/2023]
Abstract
We describe the synthesis of three new manganese (II) complexes containing the bidentate ligands 2-(1-methyl-3-pyrazolyl)pyridine (pypz-Me) and ethyl 2-(3-(pyridine-2-yl)-1H-pyrazol-1-yl)acetate (pypz-CH2COOEt), with formula [MnX2(pypz-Me)2] (X = Cl-1, CF3SO3-2) and [Mn(CF3SO3)2(pypz-CH2COOEt)2] 3. Complexes 1-3 have been characterized through analytical, spectroscopic and electrochemical techniques, as well as by monocrystal X-ray diffraction analysis. The complexes show a six-coordinated Mn(II) ion though different stereoisomers have been isolated for the three compounds. Complexes 1-3, together with the previously described compounds [MnCl2(pypz-H)2] 4, [Mn(CF3SO3)2(pypz-H)2] 5, [Mn(NO3)2(pypz-H)2] 6, [MnCl2(H2O)2(pypz-H)2] 7 (pypz-H = 2-(3-pyrazolyl)pyridine) and ([Mn(CF3SO3)2((-)-L)2] 8, ((-)-L = (-)-pinene[5,6]bipyridine), were tested in vitro for cytotoxic activity against NCI-H460 and OVCAR-8 cancer cell lines. The geometry of a specific compound does not seem to influence its activity in a significant extent. However, among the tested compounds those that display hydrophobic substituents on the pyrazole ring and triflate ions as labile ligands show the best antiproliferative properties. Specifically, compound 8 containing the pinene-bipyridine ligand presents an antiproliferative activity similar to that of cisplatin and higher than that of carboplatin, and displays selectivity for tumour cells. Its antiproliferative effect is due to the generation of ROS species that allow the compound to interact with DNA.
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Affiliation(s)
- Jessica Castro
- Laboratori d'Enginyeria de Proteïnes, Departament de Biologia, Facultat de Ciències, Universitat de Girona, Campus de Montilivi, C/Maria Aurèlia Capmany, 40, E-17003 Girona, Spain; Institut d'Investigació Biomèdica de Girona Dr. Josep Trueta, Girona, Spain
| | - Ester Manrique
- Departament de Química and Serveis Tècnics de Recerca, Universitat de Girona, Campus de Montilivi, C/Maria Aurèlia Capmany, 69, E-17003 Girona, Spain
| | - Marlon Bravo
- Laboratori d'Enginyeria de Proteïnes, Departament de Biologia, Facultat de Ciències, Universitat de Girona, Campus de Montilivi, C/Maria Aurèlia Capmany, 40, E-17003 Girona, Spain; Institut d'Investigació Biomèdica de Girona Dr. Josep Trueta, Girona, Spain
| | - Maria Vilanova
- Laboratori d'Enginyeria de Proteïnes, Departament de Biologia, Facultat de Ciències, Universitat de Girona, Campus de Montilivi, C/Maria Aurèlia Capmany, 40, E-17003 Girona, Spain; Institut d'Investigació Biomèdica de Girona Dr. Josep Trueta, Girona, Spain.
| | - Antoni Benito
- Laboratori d'Enginyeria de Proteïnes, Departament de Biologia, Facultat de Ciències, Universitat de Girona, Campus de Montilivi, C/Maria Aurèlia Capmany, 40, E-17003 Girona, Spain; Institut d'Investigació Biomèdica de Girona Dr. Josep Trueta, Girona, Spain
| | - Xavier Fontrodona
- Departament de Química and Serveis Tècnics de Recerca, Universitat de Girona, Campus de Montilivi, C/Maria Aurèlia Capmany, 69, E-17003 Girona, Spain
| | - Montserrat Rodríguez
- Departament de Química and Serveis Tècnics de Recerca, Universitat de Girona, Campus de Montilivi, C/Maria Aurèlia Capmany, 69, E-17003 Girona, Spain.
| | - Isabel Romero
- Departament de Química and Serveis Tècnics de Recerca, Universitat de Girona, Campus de Montilivi, C/Maria Aurèlia Capmany, 69, E-17003 Girona, Spain.
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5
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Kumar G, Hussain F, Gupta R. Copper based coordination polymers based on metalloligands: utilization as heterogeneous oxidation catalysts. Dalton Trans 2018; 47:16985-16994. [DOI: 10.1039/c8dt03836h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work presents two copper-based coordination polymers and their utilization as stable, reusable and heterogeneous catalysts for the epoxidation of olefins using O2 and for peroxide-mediated oxidation of benzyl alcohols under solvent-free conditions.
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Affiliation(s)
- Gulshan Kumar
- Department of Chemistry
- University of Delhi
- Delhi – 110 007
- India
| | - Firasat Hussain
- Department of Chemistry
- University of Delhi
- Delhi – 110 007
- India
| | - Rajeev Gupta
- Department of Chemistry
- University of Delhi
- Delhi – 110 007
- India
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A novel chiral manganese-tetraamide macrocycle complex covalently attached to magnetite as recyclable catalyst for aerobic asymmetric epoxidation of olefins. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.03.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Tanaka K, Kobayashi K, Takatori K, Kogen H. Efficient synthesis of syn -α-alkoxy epoxide via a diastereoselective Darzens reaction. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.02.051] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Strengths, Weaknesses, Opportunities and Threats: Computational Studies of Mn- and Fe-Catalyzed Epoxidations. Catalysts 2016. [DOI: 10.3390/catal7010002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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9
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Krishnan KK, Thomas AM, Sindhu KS, Anilkumar G. Recent advances and perspectives in the manganese-catalysed epoxidation reactions. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.11.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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10
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Kumar G, Kumar G, Gupta R. Manganese- and Cobalt-Based Coordination Networks as Promising Heterogeneous Catalysts for Olefin Epoxidation Reactions. Inorg Chem 2015; 54:2603-15. [PMID: 25719611 DOI: 10.1021/ic502772k] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Girijesh Kumar
- Department of Chemistry, University of Delhi, Delhi 110 007, India
| | - Gulshan Kumar
- Department of Chemistry, University of Delhi, Delhi 110 007, India
| | - Rajeev Gupta
- Department of Chemistry, University of Delhi, Delhi 110 007, India
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11
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Manrique E, Poater A, Fontrodona X, Solà M, Rodríguez M, Romero I. Reusable manganese compounds containing pyrazole-based ligands for olefin epoxidation reactions. Dalton Trans 2015; 44:17529-43. [DOI: 10.1039/c5dt02787j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New robust and effective Mn-pyrazolyl catalysts for olefin epoxidation in [bmim]PF6 : CH3CN, with good activity even after several reuses, are described. The cis → trans isomerization in the epoxidation of cis-β-methylstyrene is confirmed through computational calculations.
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Affiliation(s)
- Ester Manrique
- Departament de Química
- Institut de Química Computacional i Catàlisi and Serveis Tècnics de Recerca
- Universitat de Girona
- E-17071 Girona
- Spain
| | - Albert Poater
- Departament de Química
- Institut de Química Computacional i Catàlisi and Serveis Tècnics de Recerca
- Universitat de Girona
- E-17071 Girona
- Spain
| | - Xavier Fontrodona
- Departament de Química
- Institut de Química Computacional i Catàlisi and Serveis Tècnics de Recerca
- Universitat de Girona
- E-17071 Girona
- Spain
| | - Miquel Solà
- Departament de Química
- Institut de Química Computacional i Catàlisi and Serveis Tècnics de Recerca
- Universitat de Girona
- E-17071 Girona
- Spain
| | - Montserrat Rodríguez
- Departament de Química
- Institut de Química Computacional i Catàlisi and Serveis Tècnics de Recerca
- Universitat de Girona
- E-17071 Girona
- Spain
| | - Isabel Romero
- Departament de Química
- Institut de Química Computacional i Catàlisi and Serveis Tècnics de Recerca
- Universitat de Girona
- E-17071 Girona
- Spain
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Rich J, Manrique E, Molton F, Duboc C, Collomb MN, Rodríguez M, Romero I. Catalytic Activity of Chloro and Triflate Manganese(II) Complexes in Epoxidation Reactions: Reusable Catalytic Systems for Alkene Epoxidation. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402032] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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Poater A, Falivene L, Urbina-Blanco CA, Manzini S, Nolan SP, Cavallo L. How does the addition of steric hindrance to a typical N-heterocyclic carbene ligand affect catalytic activity in olefin metathesis? Dalton Trans 2014; 42:7433-9. [PMID: 23455458 DOI: 10.1039/c3dt32980a] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Density functional theory (DFT) calculations were used to predict and rationalize the effect of the modification of the structure of the prototype 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) N-heterocyclic carbene (NHC) ligand. The modification consists in the substitution of the methyl groups of ortho isopropyl substituent with phenyl groups, and here we plan to describe how such significant changes affect the metal environment and therefore the related catalytic behaviour. Bearing in mind that there is a significant structural difference between both ligands in different olefin metathesis reactions, here by means of DFT we characterize where the NHC ligand plays a more active role and where it is a simple spectator, or at least its modification does not significantly change its catalytic role/performance.
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Affiliation(s)
- Albert Poater
- Institut de Química Computacional, Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Catalonia, Spain.
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Sutradhar M, Martins LMDRS, Guedes da Silva MFC, Alegria ECBA, Liu CM, Pombeiro AJL. Dinuclear Mn(ii,ii) complexes: magnetic properties and microwave assisted oxidation of alcohols. Dalton Trans 2014; 43:3966-77. [DOI: 10.1039/c3dt52774c] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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15
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Vaquer L, Poater A, De Tovar J, García-Antón J, Solà M, Llobet A, Sala X. Ruthenium complexes with chiral bis-pinene ligands: an array of subtle structural diversity. Inorg Chem 2013; 52:4985-92. [PMID: 23618101 DOI: 10.1021/ic302678b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A new chiral derivative of the N,N-bis(2-pyridylmethyl)ethylamine (bpea) ligand, Me-pinene[5,6]bpea [(-)-L1], has been prepared from a new aldehyde building block [Me-pinene-aldehyde, (-)-4] arising from the monoterpene chiral pool. The tridentate (-)-L1 ligand has been employed to prepare a new set of Ru-Cl complexes in combination with didentate 2,2'-bipyridine (bpy) with the general formula [RuCl((-)-L1)(bpy)](+). These complexes have been characterized in solution by cyclic voltammetry, UV-vis, and 1D and 2D NMR spectroscopy. Isomeric mixtures of trans,fac-C1a and anti,mer-C1c compounds are formed when (-)-L1 is reacted with a [Ru(bpy)(MeOH)Cl3] precursor. Density functional theory calculations of all of the potential isomers of this reaction have been performed in order to interpret the experimental results in terms of electronic and steric effects and also to unravel the observed isomerization pathway between anti,mer-C1c and trans,fac-C1a.
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Affiliation(s)
- Lydia Vaquer
- Institute of Chemical Research of Catalonia (ICIQ), Avenida Països Catalans 16, E-43007 Tarragona, Spain
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Poater A, Solà M. Complete σ* intramolecular aromatic hydroxylation mechanism through O2 activation by a Schiff base macrocyclic dicopper(I) complex. Beilstein J Org Chem 2013; 9:585-93. [PMID: 23616799 PMCID: PMC3628990 DOI: 10.3762/bjoc.9.63] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Accepted: 03/01/2013] [Indexed: 02/05/2023] Open
Abstract
In this work we analyze the whole molecular mechanism for intramolecular aromatic hydroxylation through O2 activation by a Schiff hexaazamacrocyclic dicopper(I) complex, [Cu(I) 2(bsH2m)](2+). Assisted by DFT calculations, we unravel the reaction pathway for the overall intramolecular aromatic hydroxylation, i.e., from the initial O2 reaction with the dicopper(I) species to first form a Cu(I)Cu(II)-superoxo species, the subsequent reaction with the second Cu(I) center to form a μ-η(2):η(2)-peroxo-Cu(II) 2 intermediate, the concerted peroxide O-O bond cleavage and C-O bond formation, followed finally by a proton transfer to an alpha aromatic carbon that immediately yields the product [Cu(II) 2(bsH2m-O)(μ-OH)](2+).
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Affiliation(s)
- Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain ; Catalan Institute for Water Research (ICRA), H2O Building, Scientific and Technological Park of the University of Girona, Emili Grahit 101, E-17003 Girona, Spain
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