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Jadhao AR, Patel H, Kodam KM, Gupte A, Waghmode SB. Selective oxidation of benzylic alcohols by laccase from white-rot mushroom Tricholoma giganteum AGHP: Total synthesis of taccabulin A, taccabulin D and taccabulin E. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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2
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Banan Khorshid Z, Doroodmand MM. Reusable Extractant and Direct Catalytic Mediation of Water/Oil/Chlorodifluoromethane Nano-Emulsion in Natural Gas Condensate for Efficient Conversion of Chloride Impurities Into the Dicopper Chloride Trihydroxide Nanoparticles. Front Chem 2022; 10:823357. [PMID: 35559214 PMCID: PMC9087797 DOI: 10.3389/fchem.2022.823357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 02/21/2022] [Indexed: 11/30/2022] Open
Abstract
This research introduces an oil-in-water (O/W) nano-emulsion (oil-water-CHClF2) as the reusable extractant phase using liquid–liquid extraction methodology for the removal efficiency of Cl− and Hg(0) [between 90% and ∼100%, deepening on the nature of the natural gas condensate (NGC)] at a brief separation time (<3.0 min). The achieved safety of the NGC using this nano-emulsion results in efficient reduction in the corrosion rate during testing iron-based fragments (vs. the untreated ones as controls) and increase in the NGC economic value. Another advantage of the synthesized nano-emulsion is its capability and catalytic mediating behavior to efficiently separate and synthesize highly pure dicopper chloride trihydroxide nanoparticles. The synthesized nanoparticles were characterized by different analytical methods such as Fourier transform infrared spectrometry, X-ray diffraction, X-ray photoelectron spectrometry, and direct visualization by some electron microscopies. Direct synthesis, fast synthetic time (<3.0 min), high purity (>99%), and scalability are the main advantages of this synthetic method. This nanoparticle is not only safe but also is efficiently applicable in different industries, especially as an eco-friendly agricultural pesticide for different plants and tress such as pistachio. Consequently, this method is accepted as direct, simple, low-cost, and scalable conversion of some upstream industries with the downstream ones. All these possibilities are attributed to the intermediate transport properties of the introduced O/W nano-emulsion. At this condition, this reagent plays role as a recycled motor for the NGC purification and conversion of these impurities into the safe and usable products. To the best of knowledge, this research is considered as the first report that shows application of this O/W medium for both chloride and mercury removal from the NGC and its direct use as top element in the synthesis of eco-friendly nanoparticles. This system is applicable in some parts of the fuel and oil centers of the “Middle East.”
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Kushch O, Hordieieva I, Novikova K, Litvinov Y, Kompanets M, Shendrik A, Opeida I. Kinetics of N-oxyl Radicals’ Decay. J Org Chem 2020; 85:7112-7124. [DOI: 10.1021/acs.joc.0c00506] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Olga Kushch
- L.M. Litvinenko Institute of Physico-Organic Chemistry and Coal Chemistry, National Academy of Sciences of Ukraine, Kyiv 02660, Ukraine
- Faculty of Chemistry, Biology and Biotechnologies, Vasyl’ Stus Donetsk National University, Vinnytsia 21021 Ukraine
| | - Iryna Hordieieva
- Faculty of Chemistry, Biology and Biotechnologies, Vasyl’ Stus Donetsk National University, Vinnytsia 21021 Ukraine
| | - Katerina Novikova
- L.M. Litvinenko Institute of Physico-Organic Chemistry and Coal Chemistry, National Academy of Sciences of Ukraine, Kyiv 02660, Ukraine
| | - Yurii Litvinov
- L.M. Litvinenko Institute of Physico-Organic Chemistry and Coal Chemistry, National Academy of Sciences of Ukraine, Kyiv 02660, Ukraine
| | - Mykhailo Kompanets
- L.M. Litvinenko Institute of Physico-Organic Chemistry and Coal Chemistry, National Academy of Sciences of Ukraine, Kyiv 02660, Ukraine
- National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Kyiv 03056 Ukraine
| | - Alexander Shendrik
- Faculty of Chemistry, Biology and Biotechnologies, Vasyl’ Stus Donetsk National University, Vinnytsia 21021 Ukraine
| | - Iosip Opeida
- Faculty of Chemistry, Biology and Biotechnologies, Vasyl’ Stus Donetsk National University, Vinnytsia 21021 Ukraine
- Department of Physical Chemistry of Fossil Fuels InPOCC, National Academy of Sciences of Ukraine, Lviv 79053, Ukraine
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Barbieri A, Lanzalunga O, Lapi A, Di Stefano S. N-Hydroxyphthalimide: A Hydrogen Atom Transfer Mediator in Hydrocarbon Oxidations Promoted by Nonheme Iron(IV)-Oxo Complexes. J Org Chem 2019; 84:13549-13556. [PMID: 31532207 DOI: 10.1021/acs.joc.9b01813] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The oxidation of a series of hydrocarbons by the nonheme iron(IV)-oxo complex [(N4Py)FeIV═O]2+ is efficiently mediated by N-hydroxyphthalimide. The increase of reactivity is associated to the oxidation of the mediator to the phthalimide N-oxyl radical, which efficiently abstracts a hydrogen atom from the substrates, regenerating the mediator in its reduced form.
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Affiliation(s)
- Alessia Barbieri
- Dipartimento di Chimica , Università di Roma "La Sapienza", Istituto CNR per i Sistemi Biologici (ISB-CNR), Sezione Meccanismi di Reazione , P.le A. Moro , 5 I-00185 Rome , Italy
| | - Osvaldo Lanzalunga
- Dipartimento di Chimica , Università di Roma "La Sapienza", Istituto CNR per i Sistemi Biologici (ISB-CNR), Sezione Meccanismi di Reazione , P.le A. Moro , 5 I-00185 Rome , Italy
| | - Andrea Lapi
- Dipartimento di Chimica , Università di Roma "La Sapienza", Istituto CNR per i Sistemi Biologici (ISB-CNR), Sezione Meccanismi di Reazione , P.le A. Moro , 5 I-00185 Rome , Italy
| | - Stefano Di Stefano
- Dipartimento di Chimica , Università di Roma "La Sapienza", Istituto CNR per i Sistemi Biologici (ISB-CNR), Sezione Meccanismi di Reazione , P.le A. Moro , 5 I-00185 Rome , Italy
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5
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Deska M, Kończak B. Immobilized fungal laccase as "green catalyst" for the decolourization process – State of the art. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.05.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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6
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Dao R, Zhao C, Yao J, Li H. Distinguishing ionic and radical mechanisms of hydroxylamine mediated electrocatalytic alcohol oxidation using NO–H bond dissociation energies. Phys Chem Chem Phys 2018; 20:28249-28256. [DOI: 10.1039/c8cp06134c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
An idea is proposed to sort N-oxyl radicals with respect to their mechanisms of electrocatalytic alcohol oxidation by knowing the NO–H bond dissociation energies of their precursors.
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Affiliation(s)
- Rina Dao
- Department of Chemistry
- ZJU-NHU United R&D Center
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Chenxuan Zhao
- Department of Chemistry
- ZJU-NHU United R&D Center
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Jia Yao
- Department of Chemistry
- ZJU-NHU United R&D Center
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Haoran Li
- Department of Chemistry
- ZJU-NHU United R&D Center
- Zhejiang University
- Hangzhou 310027
- P. R. China
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Vallecillos L, Sadef Y, Borrull F, Pocurull E, Bester K. Degradation of synthetic fragrances by laccase-mediated system. JOURNAL OF HAZARDOUS MATERIALS 2017; 334:233-243. [PMID: 28415001 DOI: 10.1016/j.jhazmat.2017.04.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 03/29/2017] [Accepted: 04/02/2017] [Indexed: 06/07/2023]
Abstract
Laccase mediator systems are important biodegradation agents as the rate of reaction could be enhanced in the presence of redox mediators. In the present study the commercial enzyme laccase from Trametes versicolor and the redox mediator 2,2'-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) were used for the biotransformation of the synthetic fragrances 1-(1,2,3,4,5,6,7,8-octahydro-2,3,8,8,-tetramethyl-2-naphthyl)ethan-1-one (Iso-E-Super, OTNE), 1,3,4,6,7,8,-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta-[g]-2-benzopyran (Galaxolide, HHCB), 7-acetyl-1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydronaphtalene (Tonalide, AHTN) and the transformation product of HHCB, 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta-[g]-2-benzopyran-1-one (Galaxolidone, HHCB-lactone) in water. A particular focus was to assess the effects of the enzyme laccase from Trametes versicolor in the enantioselective degradation of the target compounds, for this reason gas chromatography with an enantioselective column was used as separation technique followed by mass spectrometry detection. In addition, as enantioselective degradation of musk fragrances was observed in wastewater, sewage sludge and fish samples, enantiomeric fractions of selected compounds were studied during composting. In a period of 144h, the target fragrances could be effectively removed by the enzyme laccase with removal percentages greater than 70%, except AHTN with a removal percentage of 42%. However, the degradation process prompted by the enzyme laccase was shown to be non-enantioselective as no significant differences were observer between the enantiomeric fractions calculated at the beginning and at the end of the degradation process. Meanwhile, the composting process was shown to be enantioselective.
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Affiliation(s)
- Laura Vallecillos
- Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, Campus Sescelades, Marcel·lí Domingo s/n, Tarragona 43007, Spain.
| | - Yumna Sadef
- Department of Chemistry Biotechnology and Environmental Engineering, Aalborg University, Sohngaardsholmsvej, 57, 9000 Aalborg, Denmark; College of Earth & Environmental Sciences, University of the Punjab, 54000 Lahore, Pakistan
| | - Francesc Borrull
- Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, Campus Sescelades, Marcel·lí Domingo s/n, Tarragona 43007, Spain
| | - Eva Pocurull
- Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, Campus Sescelades, Marcel·lí Domingo s/n, Tarragona 43007, Spain
| | - Kai Bester
- Department of Environmental Science, Aarhus University, Frederkisborgsvej 399, Roskilde 4000, Denmark
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DiLabio GA, Franchi P, Lanzalunga O, Lapi A, Lucarini F, Lucarini M, Mazzonna M, Prasad VK, Ticconi B. Hydrogen Atom Transfer (HAT) Processes Promoted by the Quinolinimide-N-oxyl Radical. A Kinetic and Theoretical Study. J Org Chem 2017; 82:6133-6141. [PMID: 28534620 DOI: 10.1021/acs.joc.7b00687] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A kinetic study of the hydrogen atom transfer (HAT) reactions from a series of organic compounds to the quinolinimide-N-oxyl radical (QINO) was performed in CH3CN. The HAT rate constants are significantly higher than those observed with the phthalimide-N-oxyl radical (PINO) as a result of enthalpic and polar effects due to the presence of the N-heteroaromatic ring in QINO. The relevance of polar effects is supported by theoretical calculations conducted for the reactions of the two N-oxyl radicals with toluene, which indicate that the HAT process is characterized by a significant degree of charge transfer permitted by the π-stacking that occurs between the toluene and the N-oxyl aromatic rings in the transition state structures. An increase in the HAT reactivity of QINO was observed in the presence of 0.15 M HClO4 and 0.15 M Mg(ClO4)2 due to the protonation or complexation with the Lewis acid of the pyridine nitrogen that leads to a further decrease in the electron density in the N-oxyl radical. These results fully support the use of N-hydroxyquinolinimide as a convenient substitute for N-hydroxyphthalimide in the catalytic aerobic oxidations of aliphatic hydrocarbons characterized by relatively high C-H bond dissociation energies.
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Affiliation(s)
- Gino A DiLabio
- Department of Chemistry, University of British Columbia , Okanagan, 3247 University Way, Kelowna, British Columbia, Canada V1V 1V7
| | - Paola Franchi
- Dipartimento di Chimica "G. Ciamician", Università di Bologna , Via San Giacomo 11, I-40126 Bologna, Italy
| | - Osvaldo Lanzalunga
- Dipartimento di Chimica, Sapienza Università di Roma and Istituto CNR di Metodologie Chimiche (IMC-CNR), Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica, Sapienza Università di Roma , P. le A. Moro, 5, I-00185 Rome, Italy
| | - Andrea Lapi
- Dipartimento di Chimica, Sapienza Università di Roma and Istituto CNR di Metodologie Chimiche (IMC-CNR), Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica, Sapienza Università di Roma , P. le A. Moro, 5, I-00185 Rome, Italy
| | - Fiorella Lucarini
- Département de Chimie, Université de Fribourg , Chemin du Musée 9, 1700 Fribourg, Switzerland
| | - Marco Lucarini
- Dipartimento di Chimica "G. Ciamician", Università di Bologna , Via San Giacomo 11, I-40126 Bologna, Italy
| | - Marco Mazzonna
- Dipartimento di Chimica, Sapienza Università di Roma and Istituto CNR di Metodologie Chimiche (IMC-CNR), Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica, Sapienza Università di Roma , P. le A. Moro, 5, I-00185 Rome, Italy
| | - Viki Kumar Prasad
- Department of Chemistry, University of British Columbia , Okanagan, 3247 University Way, Kelowna, British Columbia, Canada V1V 1V7
| | - Barbara Ticconi
- Dipartimento di Chimica, Sapienza Università di Roma and Istituto CNR di Metodologie Chimiche (IMC-CNR), Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica, Sapienza Università di Roma , P. le A. Moro, 5, I-00185 Rome, Italy
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Laccase catalysis for the synthesis of bioactive compounds. Appl Microbiol Biotechnol 2016; 101:13-33. [PMID: 27872999 DOI: 10.1007/s00253-016-7987-5] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 11/01/2016] [Accepted: 11/04/2016] [Indexed: 10/20/2022]
Abstract
The demand for compounds of therapeutic value is increasing mainly because of new applications of bioactive compounds in medicine, pharmaceutical, agricultural, and food industries. This has necessitated the search for cost-effective methods for producing bioactive compounds and therefore the intensification of the search for enzymatic approaches in organic synthesis. Laccase is one of the enzymes that have shown encouraging potential as biocatalysts in the synthesis of bioactive compounds. Laccases are multicopper oxidases with a diverse range of catalytic activities revolving around synthesis and degradative reactions. They have attracted much attention as potential industrial catalysts in organic synthesis mainly because they are essentially green catalysts with a diverse substrate range. Their reaction only requires molecular oxygen and releases water as the only by-product. Laccase catalysis involves the abstraction of a single electron from their substrates to produce reactive radicals. The free radicals subsequently undergo homo- and hetero-coupling to form dimeric, oligomeric, polymeric, or cross-coupling products which have practical implications in organic synthesis. Consequently, there is a growing body of research focused on the synthetic applications of laccases such as organic synthesis, hair and textile dyeing, polymer synthesis, and grafting processes. This paper reviews the major advances in laccase-mediated synthesis of bioactive compounds, the mechanisms of enzymatic coupling, structure-activity relationships of synthesized compounds, and the challenges that might guide future research directions.
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Capraro MG, Franchi P, Lanzalunga O, Lapi A, Lucarini M. Chiral N-Hydroxybenzamides as Potential Catalysts for Aerobic Asymmetric Oxidations. J Org Chem 2014; 79:6435-43. [DOI: 10.1021/jo500844c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maria Grazia Capraro
- Dipartimento di
Chimica and Istituto CNR di Metodologie Chimiche (IMC-CNR), Sezione
Meccanismi di Reazione, c/o Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro, 5 I-00185 Rome, Italy
| | - Paola Franchi
- Dipartimento
di Chimica “G. Ciamician”, Università di Bologna, Via San
Giacomo 11, I-40126 Bologna, Italy
| | - Osvaldo Lanzalunga
- Dipartimento di
Chimica and Istituto CNR di Metodologie Chimiche (IMC-CNR), Sezione
Meccanismi di Reazione, c/o Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro, 5 I-00185 Rome, Italy
| | - Andrea Lapi
- Dipartimento di
Chimica and Istituto CNR di Metodologie Chimiche (IMC-CNR), Sezione
Meccanismi di Reazione, c/o Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro, 5 I-00185 Rome, Italy
| | - Marco Lucarini
- Dipartimento
di Chimica “G. Ciamician”, Università di Bologna, Via San
Giacomo 11, I-40126 Bologna, Italy
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11
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Mazzonna M, Bietti M, DiLabio GA, Lanzalunga O, Salamone M. Importance of π-Stacking Interactions in the Hydrogen Atom Transfer Reactions from Activated Phenols to Short-Lived N-Oxyl Radicals. J Org Chem 2014; 79:5209-18. [DOI: 10.1021/jo500789v] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Marco Mazzonna
- Dipartimento
di Chimica and Istituto CNR di Metodologie
Chimiche (IMC−CNR), Sezione Meccanismi di Reazione, c/o Dipartimento
di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, I-00185 Rome, Italy
| | - Massimo Bietti
- Dipartimento
di Scienze e Tecnologie Chimiche, Università “Tor Vergata”, Via della Ricerca Scientifica, 1, I-00133 Rome, Italy
| | - Gino A. DiLabio
- National
Institute for Nanotechnology, National Research Council of Canada, 11421
Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2M9
- Department
of Chemistry, University of British Columbia, Okanagan, 3333 University
Way, Kelowna, British Columbia, Canada V1V 1V7
| | - Osvaldo Lanzalunga
- Dipartimento
di Chimica and Istituto CNR di Metodologie
Chimiche (IMC−CNR), Sezione Meccanismi di Reazione, c/o Dipartimento
di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, I-00185 Rome, Italy
| | - Michela Salamone
- Dipartimento
di Scienze e Tecnologie Chimiche, Università “Tor Vergata”, Via della Ricerca Scientifica, 1, I-00133 Rome, Italy
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