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Martínez H, Neira J, Amaya ÁA, Páez-Mozo EA, Martínez Ortega F. Selective Photooxidation of Valencene and Thymol with Nano-TiO 2 and O 2 as Oxidant. Molecules 2023; 28:molecules28093868. [PMID: 37175280 PMCID: PMC10180157 DOI: 10.3390/molecules28093868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/30/2023] [Accepted: 04/05/2023] [Indexed: 05/15/2023] Open
Abstract
The selective photocatalytic oxidation with O2 as oxidant of valencene and thymol was evaluated using nanostructured TiO2 under UV-Vis radiation at atmospheric conditions. The effect of the morphology and optical properties of TiO2 nanotubes and aminate nanoparticles was studied. Different scavengers were used to detect the presence of positive holes (h+), electrons (e-), hydroxyl radicals (•OH), and the superoxide radical anion (O2-) during the photooxidation reaction. Superoxide anion radical is the main oxidizing specie formed, which is responsible for the selective formation of nootkatone and thymoquinone using aminated TiO2 nanoparticles under 400 nm radiation.
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Affiliation(s)
- Henry Martínez
- Centro de Investigaciones en Catálisis, CICAT, Universidad Industrial de Santander, Piedecuesta 681011, Colombia
| | - Jane Neira
- Centro de Investigaciones en Catálisis, CICAT, Universidad Industrial de Santander, Piedecuesta 681011, Colombia
| | - Álvaro A Amaya
- Facultad de Ciencias Exactas, Naturales y Agropecuarias, Ciencias Básicas y Aplicadas Para la Sostenibilidad, CIBAS, Universidad de Santander, Bucaramanga 680003, Colombia
| | - Edgar A Páez-Mozo
- Centro de Investigaciones en Catálisis, CICAT, Universidad Industrial de Santander, Piedecuesta 681011, Colombia
| | - Fernando Martínez Ortega
- Centro de Investigaciones en Catálisis, CICAT, Universidad Industrial de Santander, Piedecuesta 681011, Colombia
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Kani I. Oxidation of thymol catalysed by a water-soluble Cu(II)-adipate-diphenylamine complex in a biphasic medium. Polyhedron 2023. [DOI: 10.1016/j.poly.2022.116237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Velychkivska N, Sedláček O, Shatan AB, Spasovová M, Filippov SK, Chahal MK, Janisova L, Brus J, Hanyková L, Hill JP, Winnik FM, Labuta J. Phase Separation and pH-Dependent Behavior of Four-Arm Star-Shaped Porphyrin-PNIPAM 4 Conjugates. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02188] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Nadiia Velychkivska
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Institute of Macromolecular Chemistry, AS CR, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Ondřej Sedláček
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 40 Prague 2, Czech Republic
| | - Anastasiia B. Shatan
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Institute of Macromolecular Chemistry, AS CR, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 40 Prague 2, Czech Republic
| | - Monika Spasovová
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00 Prague 8, Czech Republic
| | - Sergey K. Filippov
- Pharmaceutical Sciences Laboratory and Turku Bioscience Center of ÅboAkademi University, Tykistökatu 6A, 20520 Turku, Finland
| | - Mandeep K. Chahal
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Larisa Janisova
- Institute of Macromolecular Chemistry, AS CR, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Jiří Brus
- Institute of Macromolecular Chemistry, AS CR, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Lenka Hanyková
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00 Prague 8, Czech Republic
| | - Jonathan P. Hill
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Francoise M. Winnik
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Department of Chemistry, University of Helsinki, P.O. Box 55, Helsinki Fl-00014, Finland
| | - Jan Labuta
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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Tessaro PS, Meireles AM, Guimarães AS, Schmitberger B, Lage ALA, Patrício PSDO, Martins DCDS, DeFreitas-Silva G. The polymerization of carvacrol catalyzed by Mn-porphyrins: obtaining the desired product guided by the choice of solvent, oxidant, and catalyst. NEW J CHEM 2022. [DOI: 10.1039/d2nj03171j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Less polar solvents could modulate the catalytic activity of Mn(iii)-porphyrins in carvacrol's oxidation leading to polymer/oligomer formation instead of thymoquinone formation.
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Affiliation(s)
- Patrícia Salvador Tessaro
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31.270-901, Brazil
| | - Alexandre Moreira Meireles
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31.270-901, Brazil
| | - Adriano Silva Guimarães
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31.270-901, Brazil
| | - Bernardo Schmitberger
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31.270-901, Brazil
| | - Ana Luísa Almeida Lage
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31.270-901, Brazil
| | | | - Dayse Carvalho da Silva Martins
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31.270-901, Brazil
| | - Gilson DeFreitas-Silva
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31.270-901, Brazil
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Villari V, Micali N, Nicosia A, Mineo P. Water-Soluble Non-Ionic PEGylated Porphyrins: A Versatile Category of Dyes for Basic Science and Applications. Top Curr Chem (Cham) 2021; 379:35. [PMID: 34382110 DOI: 10.1007/s41061-021-00348-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 07/28/2021] [Indexed: 12/22/2022]
Abstract
This review arises from the need to rationalize the huge amount of information on the structural and spectroscopic properties of a peculiar class of porphyrin derivatives-the non-ionic PEGylated porphyrins-collected during almost two decades of research. The lack of charged groups in the molecular architecture of these porphyrin derivatives is the leitmotif of the work and plays an outstanding role in highlighting those interactions between porphyrins, or between porphyrins and target molecules (e.g., hydrophobic-, hydrogen bond related-, and coordination-interactions, to name just a few) that are often masked by stronger electrostatic contributions. In addition, it is exactly these weaker interactions between porphyrins that make the aggregated forms more prone to couple efficiently with external perturbative fields like weak hydrodynamic vortexes or temperature gradients. In the absence of charge, solubility in water is very often achieved by covalent functionalization of the porphyrin ring with polyethylene glycol chains. Various modifications, including of chain length or the number of chains, the presence of a metal atom in the porphyrin core, or having two or more porphyrin rings in the molecular architecture, result in a wide range of properties. These encompass self-assembly with different aggregate morphology, molecular recognition of biomolecules, and different photophysical responses, which can be translated into numerous promising applications in the sensing and biomedical field, based on turn-on/turn-off fluorescence and on photogeneration of radical species.
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Affiliation(s)
- Valentina Villari
- IPCF-CNR, Istituto per i Processi Chimico-Fisici, Viale F. Stagno d'Alcontres 37, 98158, Messina, Italy.
| | - Norberto Micali
- IPCF-CNR, Istituto per i Processi Chimico-Fisici, Viale F. Stagno d'Alcontres 37, 98158, Messina, Italy
| | - Angelo Nicosia
- Dipartimento di Scienze Chimiche, Università di Catania, Viale Andrea Doria 6, 95125, Catania, Italy
| | - Placido Mineo
- IPCF-CNR, Istituto per i Processi Chimico-Fisici, Viale F. Stagno d'Alcontres 37, 98158, Messina, Italy
- Dipartimento di Scienze Chimiche, Università di Catania, Viale Andrea Doria 6, 95125, Catania, Italy
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Biomimetic Oxidation of Benzofurans with Hydrogen Peroxide Catalyzed by Mn(III) Porphyrins. Catalysts 2020. [DOI: 10.3390/catal10010062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
The modelling of metabolic activation of the benzofuran nucleus is important to obtain eco-sustainable degradation methods and to understand the related mechanisms. The present work reports the catalytic oxidation of benzofuran, 2-methylbenzofuran, and 3-methylbenzofuran by hydrogen peroxide, at room temperature, in the presence of different Mn(III) porphyrins as models of cytochrome P450 enzymes. Conversions above 95% were attained for all the substrates. The key step is the formation of epoxides, which undergo different reaction pathways depending on factors, such as the position of the methyl group and the reaction and work-up conditions used.
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