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Formation of cobalt (ɪɪɪ) polyaminopolycarboxylate complexes in aqueous solutions by the peroxide oxidation of the cobalt (ɪɪ) complexes. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3495-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Larionov VA, Feringa BL, Belokon YN. Enantioselective "organocatalysis in disguise" by the ligand sphere of chiral metal-templated complexes. Chem Soc Rev 2021; 50:9715-9740. [PMID: 34259242 DOI: 10.1039/d0cs00806k] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Asymmetric catalysis holds a prominent position among the important developments in chemistry during the 20th century. This was acknowledged by the 2001 Nobel Prize in chemistry awarded to Knowles, Noyori, and Sharpless for their development of chiral metal catalysts for organic transformations. The key feature of the catalysts was the crucial role of the chiral ligand and the nature of the metal ions, which promoted the catalytic conversions of the substrates via direct coordination. Subsequently the development of asymmetric organic catalysis opened new avenues to the synthesis of enantiopure compounds, avoiding any use of metal ions. Recently, an alternative approach to asymmetric catalysis emerged that relied on the catalytic functions of the ligands themselves boosted by coordination to metal ions. In other words, in these hybrid chiral catalysts the substrates are activated not by the metal ions but by the ligands. The activation and enantioselective control occurred via well-orchestrated and custom-tailored non-covalent interactions of the substrates with the ligand sphere of chiral metal complexes. In these metal-templated catalysts, the metal served either as a template (a purely structural role), or it constituted the exclusive source of chirality (metal-centred chirality due to the spatial arrangement of achiral or chiral bi-/tridentate ligands around an octahedral metal centre), and/or it increased the Brønsted acidity of the ligands. Although the field is still in its infancy, it represents an inspiring combination of both metal and organic catalysis and holds major unexplored potential to push the frontiers of asymmetric catalysis. Here we present an overview of this emerging field discussing the principles, applications and perspectives on the catalytic use of chiral metal complexes that operate as "organocatalysts in disguise". It has been demonstrated that these chiral metal complexes are efficient and provide high stereoselective control in asymmetric hydrogen bonding catalysis, phase-transfer catalysis, Brønsted acid/base catalysis, enamine catalysis, nucleophilic catalysis, and photocatalysis as well as bifunctional catalysis. Also, many of the catalysts have been identified as highly effective catalysts at remarkably low catalyst loadings. These hybrid systems offer many opportunities in the synthesis of chiral compounds and represent promising alternatives to metal-based and organocatalytic asymmetric transformations.
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Affiliation(s)
- Vladimir A Larionov
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russian Federation.
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Voloshin YZ, Dudkin SV, Belova SA, Gherca D, Samohvalov D, Manta CM, Lungan MA, Meier-Menches SM, Rapta P, Darvasiová D, Malček M, Pombeiro AJL, Martins LMDRS, Arion VB. Spectroelectrochemical Properties and Catalytic Activity in Cyclohexane Oxidation of the Hybrid Zr/Hf-Phthalocyaninate-Capped Nickel(II) and Iron(II) tris-Pyridineoximates and Their Precursors. Molecules 2021; 26:molecules26020336. [PMID: 33440755 PMCID: PMC7827310 DOI: 10.3390/molecules26020336] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 01/01/2021] [Accepted: 01/04/2021] [Indexed: 11/25/2022] Open
Abstract
The in situ spectroelectrochemical cyclic voltammetric studies of the antimony-monocapped nickel(II) and iron(II) tris-pyridineoximates with a labile triethylantimony cross-linking group and Zr(IV)/Hf(IV) phthalocyaninate complexes were performed in order to understand the nature of the redox events in the molecules of heterodinuclear zirconium(IV) and hafnium(IV) phthalocyaninate-capped derivatives. Electronic structures of their 1e-oxidized and 1e-electron-reduced forms were experimentally studied by electron paramagnetic resonance (EPR) spectroscopy and UV−vis−near-IR spectroelectrochemical experiments and supported by density functional theory (DFT) calculations. The investigated hybrid molecular systems that combine a transition metal (pseudo)clathrochelate and a Zr/Hf-phthalocyaninate moiety exhibit quite rich redox activity both in the cathodic and in the anodic region. These binuclear compounds and their precursors were tested as potential catalysts in oxidation reactions of cyclohexane and the results are discussed.
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Affiliation(s)
- Yan Z. Voloshin
- Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 119991 Moscow, Russia; (Y.Z.V.); (S.V.D.); (S.A.B.)
- Department of General and Inorganic Chemistry, Gubkin Russian State University of Oil and Gas (National Research University), 119991 Moscow, Russia
| | - Semyon V. Dudkin
- Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 119991 Moscow, Russia; (Y.Z.V.); (S.V.D.); (S.A.B.)
| | - Svetlana A. Belova
- Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 119991 Moscow, Russia; (Y.Z.V.); (S.V.D.); (S.A.B.)
| | - Daniel Gherca
- Sara Pharm Solutions S.R.L., 266-268 Calea Rahovei, 050912 Bucharest, Romania; (D.G.); (D.S.); (C.-M.M.); (M.-A.L.)
| | - Dumitru Samohvalov
- Sara Pharm Solutions S.R.L., 266-268 Calea Rahovei, 050912 Bucharest, Romania; (D.G.); (D.S.); (C.-M.M.); (M.-A.L.)
| | - Corina-Mihaela Manta
- Sara Pharm Solutions S.R.L., 266-268 Calea Rahovei, 050912 Bucharest, Romania; (D.G.); (D.S.); (C.-M.M.); (M.-A.L.)
| | - Maria-Andreea Lungan
- Sara Pharm Solutions S.R.L., 266-268 Calea Rahovei, 050912 Bucharest, Romania; (D.G.); (D.S.); (C.-M.M.); (M.-A.L.)
| | - Samuel M. Meier-Menches
- Department of Analytical Chemistry, University of Vienna, Währinger Strasse 38, A-1090 Vienna, Austria;
| | - Peter Rapta
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovakia; (D.D.); (M.M.)
- Correspondence: (P.R.); (L.M.D.R.S.M.); (V.B.A.)
| | - Denisa Darvasiová
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovakia; (D.D.); (M.M.)
| | - Michal Malček
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovakia; (D.D.); (M.M.)
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;
| | - Luísa M. D. R. S. Martins
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;
- Correspondence: (P.R.); (L.M.D.R.S.M.); (V.B.A.)
| | - Vladimir B. Arion
- Institute of Inorganic Chemistry, University of Vienna, Währinger Strasse 42, A-1090 Vienna, Austria
- Correspondence: (P.R.); (L.M.D.R.S.M.); (V.B.A.)
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Ghorbani‐Choghamarani A, Bastan H, Taherinia Z. New microsphere cobalt complex: preparation and catalytic consideration for the synthesis of some heterocyclic compounds. ChemistrySelect 2020. [DOI: 10.1002/slct.202003607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Hosna Bastan
- Department of Chemistry Faculty of Science Ilam University, and P.O. Box 69315516 Ilam Iran
| | - Zahra Taherinia
- Department of Chemistry Faculty of Science Ilam University, and P.O. Box 69315516 Ilam Iran
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Maximuck WJ, Gladysz JA. Lipophilic chiral cobalt (III) complexes of hexaamine ligands: Efficacies as enantioselective hydrogen bond donor catalysts. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.03.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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A Bis(µ‐chlorido)‐Bridged Cobalt(II) Complex with Silyl‐Containing Schiff Base as a Catalyst Precursor in the Solvent‐Free Oxidation of Cyclohexane. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700875] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Mary Imelda Jayaseeli A, Ramdass A, Rajagopal S. Selective H2O2 oxidation of organic sulfides to sulfoxides catalyzed by cobalt(III)–salen ion. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.07.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Granadeiro CM, Karmaoui M, Correia E, Julião D, Amaral VS, Silva NJO, Cunha-Silva L, Balula SS. Cobalt aluminate nanoparticles supported on MIL-101 structure: catalytic performance investigation. RSC Adv 2015. [DOI: 10.1039/c4ra10498f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel heterogeneous catalysts composed by CoAl2O4 nanoparticles supported on MIL-101(Cr) framework exhibiting remarkable catalytic performance for thioanisole oxidation under sustainable conditions.
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Affiliation(s)
- Carlos M. Granadeiro
- REQUIMTE & Department of Chemistry and Biochemistry
- Faculty of Sciences
- University of Porto
- 4169-007 Porto
- Portugal
| | - Mohamed Karmaoui
- CICECO & Department of Physics
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Eva Correia
- REQUIMTE & Department of Chemistry and Biochemistry
- Faculty of Sciences
- University of Porto
- 4169-007 Porto
- Portugal
| | - Diana Julião
- REQUIMTE & Department of Chemistry and Biochemistry
- Faculty of Sciences
- University of Porto
- 4169-007 Porto
- Portugal
| | - Vitor S. Amaral
- CICECO & Department of Physics
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Nuno J. O. Silva
- CICECO & Department of Physics
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Luís Cunha-Silva
- REQUIMTE & Department of Chemistry and Biochemistry
- Faculty of Sciences
- University of Porto
- 4169-007 Porto
- Portugal
| | - Salete S. Balula
- REQUIMTE & Department of Chemistry and Biochemistry
- Faculty of Sciences
- University of Porto
- 4169-007 Porto
- Portugal
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