1
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Amari JAA, Sangiorgio S, Pargoletti E, Rabuffetti M, Zaccheria F, Usuelli F, Quaranta V, Speranza G, Cappelletti G. Chemically vs Enzymatically Synthesized Polyglycerol-Based Esters: A Comparison between Their Surfactancy. ACS Omega 2023; 8:26405-26413. [PMID: 37521610 PMCID: PMC10373213 DOI: 10.1021/acsomega.3c02922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 06/09/2023] [Indexed: 08/01/2023]
Abstract
Polyglycerol fatty acid esters (PGFAEs) are gaining interest in several industrial sectors due to their excellent surfactant properties and their wide range of hydrophilic-lipophilic balance (HLB) values. Moreover, they can be prepared from renewable resources, i.e., fatty acids and glycerol. In this study, polyglycerol-2 stearic acid esters (PG2SAEs) were synthesized by the enzymatic esterification of polyglycerol-2 (PG2) and stearic acid (SA) using the immobilized lipase Novozym 435 as a biocatalyst in a solvent-free system. Reaction conditions, i.e., temperature (80 °C), reactant ratio (1:1.8), and enzyme loading (2.7% w/w), were finely optimized; furthermore, biocatalyst recycling was studied by assessing the residual activity of the lipase after each reaction cycle, up to 20 times. The composition of the enzymatically synthesized products (E) was roughly evaluated by chromatographic methods and mass spectrometry and compared with that of the esters obtained by acid-catalyzed esterification (C). Then, the surfactant properties of the prepared polyglycerol-based surfactants were investigated by interfacial tension studies. Specifically, the emulsifying capacity and stability and the rheological behavior of O/W emulsions prepared in the presence of E were deeply investigated in comparison with those of the chemically synthesized and commercially available product C.
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Affiliation(s)
| | - Sara Sangiorgio
- Department
of Chemistry, University of Milan, Via Golgi 19, 20133 Milan, Italy
| | - Eleonora Pargoletti
- Department
of Chemistry, University of Milan, Via Golgi 19, 20133 Milan, Italy
| | - Marco Rabuffetti
- Department
of Chemistry, University of Milan, Via Golgi 19, 20133 Milan, Italy
| | - Federica Zaccheria
- CNR,
Istituto di Scienze e Tecnologie Chimiche “G. Natta”
(SCITEC), Via Golgi 19, 20133 Milan, Italy
| | - Fabio Usuelli
- Res
Novare S.r.l., via Italia
197, Int.10 c/o Centro comm. Globo, 20874 Busnago, Italy
| | - Valeria Quaranta
- Res
Novare S.r.l., via Italia
197, Int.10 c/o Centro comm. Globo, 20874 Busnago, Italy
| | - Giovanna Speranza
- Department
of Chemistry, University of Milan, Via Golgi 19, 20133 Milan, Italy
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2
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Cavuoto D, Gervasini A, Zaccheria F, Scotti N, Marelli M, Bisio C, Begni F, Ravasio N. Synthesis of green solvents from bio-based lactones using heterogeneous copper catalysts. Catal Today 2023. [DOI: 10.1016/j.cattod.2023.114104] [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: 03/18/2023]
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3
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Pappalardo V, Ravasio N, Falletta E, De Rosa MC, Zaccheria F. A Green Lipophilization Reaction of a Natural Antioxidant. Antioxidants (Basel) 2023; 12:antiox12020218. [PMID: 36829780 PMCID: PMC9952416 DOI: 10.3390/antiox12020218] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 01/19/2023] Open
Abstract
A natural antioxidant, widely spread in plants, chlorogenic acid (CGA), can be lipophilized through a heterogeneous, non-enzymatic, catalytic process. Thus, sulfonic resins under no solvent conditions allow to obtain a series of esters in up to 93% yield through reaction of CGA with fatty alcohols of different chain length. The reaction takes place in one single step under mild conditions with conversions up to 96% and selectivity up to 99%. Product recovery in high purity was very easy and the esters obtained were fully characterized with spectroscopic techniques and through the DPPH test to verify the preservation of antioxidant activity. According to this test, all of them showed increased activity with respect to the parent acid and anyway higher than butylated hydroxyanisole. An in-silico method also suggested their very low toxicity. The increased lipophilicity of the esters allows their formulation in cosmetic and nutraceutic lipid-based products.
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Affiliation(s)
- Valeria Pappalardo
- National Research Council-Institute of Chemical Sciences and Technology (CNR-SCITEC) “G. Natta”, Via Golgi 19, 20133 Milano, Italy
| | - Nicoletta Ravasio
- National Research Council-Institute of Chemical Sciences and Technology (CNR-SCITEC) “G. Natta”, Via Golgi 19, 20133 Milano, Italy
- Correspondence: ; Tel.: +39-02-50314382
| | - Ermelinda Falletta
- Department of Chemistry, University of Milan, Via C. Golgi 19, 20133 Milano, Italy
| | - Maria Cristina De Rosa
- National Research Council-Institute of Chemical Sciences and Technology (CNR-SCITEC) “G. Natta”, Largo F. Vito, 1, 00168 Rome, Italy
| | - Federica Zaccheria
- National Research Council-Institute of Chemical Sciences and Technology (CNR-SCITEC) “G. Natta”, Via Golgi 19, 20133 Milano, Italy
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4
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Fadda A, Montoro P, D’Urso G, Ravasio N, Zaccheria F, Sanna D. Sustainable Extraction Methods Affect Metabolomics and Oxidative Stability of Myrtle Seed Oils Obtained from Myrtle Liqueur By-Products: An Electron Paramagnetic Resonance and Mass Spectrometry Approach. Antioxidants (Basel) 2023; 12:antiox12010154. [PMID: 36671016 PMCID: PMC9854790 DOI: 10.3390/antiox12010154] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/04/2023] [Accepted: 01/06/2023] [Indexed: 01/11/2023] Open
Abstract
Myrtle liqueur production generates high amounts of by-products that can be employed for the extraction of bioactive compounds. Bio-based, non-toxic and biodegradable solvents (ethyl acetate and 2-methyltetrahydrofuran), and a mechanical extraction were applied to myrtle seeds, by-products of the liqueur production, to extract oils rich in phenolic compounds. The oils obtained were characterized for yield, peroxide value (PV), lipid composition, and total phenolic concentration (TPC). The phenolic profile of the oils, determined by LC-MS, the antioxidant activity, and the oxidative stability were also analyzed. A validated UHPLC-ESI-QTRAP-MS/MS analytical method in multiple reaction monitoring (MRM) mode was applied to quantify myricetin and its main derivatives in myrtle oils. The results pointed out clear differences among extraction methods on myricetin concentration. The oxidative stability of myrtle oils was studied with electron paramagnetic resonance (EPR) spectroscopy highlighting the effect of the extraction method on the oxidation status of the oils and the role of phenolic compounds in the evolution of radical species over time. A principal component analysis applied to LC-MS data highlighted strong differences among phenolic profiles of the oils and highlighted the role of myricetin in the oxidative stability of myrtle oils. Myrtle oil, obtained from the by-products of myrtle liqueur processing industry, extracted with sustainable and green methods might have potential application in food or cosmetic industries.
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Affiliation(s)
- Angela Fadda
- Institute of the Sciences of Food Productions, National Research Council, Traversa La Crucca, 3, 07100 Sassari, Italy
- Correspondence: ; Tel.: +39-079-284-1714
| | - Paola Montoro
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Gilda D’Urso
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy
| | - Nicoletta Ravasio
- Institute of Chemical Sciences and Technologies “G. Natta”, National Research Council, Via Golgi 19, 20133 Milano, Italy
| | - Federica Zaccheria
- Institute of Chemical Sciences and Technologies “G. Natta”, National Research Council, Via Golgi 19, 20133 Milano, Italy
| | - Daniele Sanna
- Institute of Biomolecular Chemistry, National Research Council, Traversa La Crucca, 3, 07100 Sassari, Italy
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5
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Pappalardo V, Remadi Y, Cipolla L, Scotti N, Ravasio N, Zaccheria F. Fishery waste valorization: Sulfated ZrO2 as a heterogeneous catalyst for chitin and chitosan depolymerization. Front Chem 2022; 10:1057461. [DOI: 10.3389/fchem.2022.1057461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 10/17/2022] [Indexed: 11/07/2022] Open
Abstract
Chitin and chitosan are abundant unique sources of biologically-fixed nitrogen mainly derived from residues of the fishery productive chain. Their high potential as nitrogen-based highly added-value platform molecules is still largely unexploited and a catalytic way for their valorization would be strongly desirable within a biorefinery concept. Here we report our results obtained with a series of heterogeneous catalysts in the depolymerization of chitosan and chitin to acetylglucosamine. Copper catalysts supported on SiO2, SiO2–Al2O3, SiO2-ZrO2, ZrO2 and the corresponding bare oxides/mixed oxides were tested, together with a sulfated zirconia system (ZrO2-SO3H) that revealed to be extremely selective towards glucosamine, both for chitosan and chitin, thus giving pretty high yields with respect to the values reported so far (44% and 21%, respectively). The use of a heterogeneous catalyst alone, without the need of any additives or the combination with a mineral acid, makes these results remarkable.
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6
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Cavuoto D, Ravasio N, Zaccheria F, Marelli M, Cappelletti G, Campisi S, Gervasini A. Tuning the Cu/SiO2 wettability features for bio-derived platform molecules valorization. Molecular Catalysis 2022. [DOI: 10.1016/j.mcat.2022.112462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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Cavuoto D, Ravasio N, Scotti N, Gervasini A, Campisi S, Marelli M, Cappelletti G, Zaccheria F. A green solvent diverts the hydrogenation of γ–valerolactone to 1,4 - pentandiol over Cu/SiO2. Molecular Catalysis 2021. [DOI: 10.1016/j.mcat.2021.111936] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Pappalardo VM, Cavuoto D, Sangiorgio S, Speranza G, Cappelletti G, Ravasio N, Zaccheria F. Clays as Effective Solid Acid Catalysts for the Preparation of Sugar Esters with Surfactant Properties. ChemistrySelect 2020. [DOI: 10.1002/slct.202001652] [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: 11/10/2022]
Affiliation(s)
- Valeria M. Pappalardo
- CNR, Istituto di Scienze e Tecnologie Chimiche “G. Natta” (SCITEC) via C. Golgi 19 20133 Milano Italy
| | - Denise Cavuoto
- CNR, Istituto di Scienze e Tecnologie Chimiche “G. Natta” (SCITEC) via C. Golgi 19 20133 Milano Italy
- Dipartimento di Chimica Università di Milano via C. Golgi 19 20133 Milano Italy
| | - Sara Sangiorgio
- Dipartimento di Chimica Università di Milano via C. Golgi 19 20133 Milano Italy
| | - Giovanna Speranza
- Dipartimento di Chimica Università di Milano via C. Golgi 19 20133 Milano Italy
| | | | - Nicoletta Ravasio
- CNR, Istituto di Scienze e Tecnologie Chimiche “G. Natta” (SCITEC) via C. Golgi 19 20133 Milano Italy
| | - Federica Zaccheria
- CNR, Istituto di Scienze e Tecnologie Chimiche “G. Natta” (SCITEC) via C. Golgi 19 20133 Milano Italy
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9
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Zaccheria F, Bossola F, Scotti N, Evangelisti C, Dal Santo V, Ravasio N. On demand production of ethers or alcohols from furfural and HMF by selecting the composition of a Zr/Si catalyst. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01427c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Silica is used to tailor the acid–base properties of ZrO2 to selectively transform furfural and HMF into alcohols or ethers.
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Affiliation(s)
- Federica Zaccheria
- CNR
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC)
- 20133 Milano
- Italy
| | - Filippo Bossola
- CNR
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC)
- 20133 Milano
- Italy
| | - Nicola Scotti
- CNR
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC)
- 20133 Milano
- Italy
| | | | - Vladimiro Dal Santo
- CNR
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC)
- 20133 Milano
- Italy
| | - Nicoletta Ravasio
- CNR
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC)
- 20133 Milano
- Italy
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10
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Scotti N, Ravasio N, Zaccheria F, Irimescu A, Merola SS. Green pathway to a new fuel extender: continuous flow catalytic synthesis of butanol/butyl butyrate mixtures. RSC Adv 2020; 10:3130-3136. [PMID: 35497726 PMCID: PMC9048835 DOI: 10.1039/d0ra00198h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 12/12/2019] [Accepted: 01/09/2020] [Indexed: 11/25/2022] Open
Abstract
The preparation of a butanol/butyl butyrate mixture was performed in one-step under continuous flow conditions with a CuO/ZrO2 catalyst. The catalytic system allows one to directly obtain up to 40–42% of butyl butyrate starting from butanol via a dehydrogenative coupling reaction without using solvent or additives. The obtained mixture was tested in a direct injection spark ignition engine as a blend of 70%vol gasoline and 30%vol butanol/butyl butyrate mixture. One of the main goals was to evaluate overall performance and whether knock tendency increased compared to the reference condition that featured gasoline only fueling. Exhaust gas pollutants were evaluated as well, so as to give a more complete picture of environmental impact effects. Overall engine performance and emissions were found to be comparable to those obtained for the reference case, with negligible increase in knocking characteristics. The preparation of a butanol/butyl butyrate mixture was performed in one-step under continuous flow conditions with a CuO/ZrO2 catalyst.![]()
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Affiliation(s)
- Nicola Scotti
- Istituto di Scienze e Tecnologie Chimiche “G. Natta”
- c/o Dipartimento di Chimica
- CNR
- 20133 Milano
- Italy
| | - Nicoletta Ravasio
- Istituto di Scienze e Tecnologie Chimiche “G. Natta”
- c/o Dipartimento di Chimica
- CNR
- 20133 Milano
- Italy
| | - Federica Zaccheria
- Istituto di Scienze e Tecnologie Chimiche “G. Natta”
- c/o Dipartimento di Chimica
- CNR
- 20133 Milano
- Italy
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11
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Affiliation(s)
- Nicola Scotti
- Institute of Molecular Science and Technology; Consiglio Nazionale delle Ricerche, Via Golgi 19; 20133 Milano Italy
| | - Federica Zaccheria
- Institute of Molecular Science and Technology; Consiglio Nazionale delle Ricerche, Via Golgi 19; 20133 Milano Italy
| | - Chiara Bisio
- Department DISIT; Università del Piemonte Orientale, Viale Teresa Michel 11; 15121 Alessandria Italy
| | - Chiara Vittoni
- Department DISIT; Università del Piemonte Orientale, Viale Teresa Michel 11; 15121 Alessandria Italy
| | - Nicoletta Ravasio
- Institute of Molecular Science and Technology; Consiglio Nazionale delle Ricerche, Via Golgi 19; 20133 Milano Italy
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12
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Affiliation(s)
- Federica Zaccheria
- Institute of Molecular Science and Technology; Consiglio Nazionale delle Ricerche; Via Golgi 19 20133 Milano Italy
| | - Nicola Scotti
- Institute of Molecular Science and Technology; Consiglio Nazionale delle Ricerche; Via Golgi 19 20133 Milano Italy
| | - Nicoletta Ravasio
- Institute of Molecular Science and Technology; Consiglio Nazionale delle Ricerche; Via Golgi 19 20133 Milano Italy
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13
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Correa A, Cascella M, Scotti N, Zaccheria F, Ravasio N, Psaro R. Mechanistic insights into formic acid dehydrogenation promoted by Cu-amino based systems. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.06.043] [Citation(s) in RCA: 5] [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: 11/27/2022]
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14
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Pappalardo VM, Boeriu CG, Zaccheria F, Ravasio N. Synthesis and characterization of arabinose-palmitic acid esters by enzymatic esterification. Molecular Catalysis 2017. [DOI: 10.1016/j.mcat.2017.02.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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15
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Santoro F, Mariani M, Zaccheria F, Psaro R, Ravasio N. Selective synthesis of thioethers in the presence of a transition-metal-free solid Lewis acid. Beilstein J Org Chem 2017; 12:2627-2635. [PMID: 28144333 PMCID: PMC5238612 DOI: 10.3762/bjoc.12.259] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 09/14/2016] [Accepted: 11/16/2016] [Indexed: 11/23/2022] Open
Abstract
The synthesis of thioethers starting from alcohols and thiols in the presence of amorphous solid acid catalysts is reported. A silica alumina catalyst with a very low content in alumina gave excellent results in terms of both activity and selectivity also under solvent-free conditions. The reaction rate follows the electron density of the carbinol atom in the substrate alcohol and yields up to 99% and can be obtained for a wide range of substrates under mild reaction conditions.
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16
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Scotti N, Zaccheria F, Evangelisti C, Psaro R, Ravasio N. Dehydrogenative coupling promoted by copper catalysts: a way to optimise and upgrade bio-alcohols. Catal Sci Technol 2017. [DOI: 10.1039/c6cy02670b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A one-pot one-step transformation of butanol into butyl butanoate takes place with excellent yield on a Cu/ZrO2 catalyst.
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Affiliation(s)
- Nicola Scotti
- CNR Institute of Molecular Sciences and Technology
- 20133 Milano
- Italy
| | | | | | - Rinaldo Psaro
- CNR Institute of Molecular Sciences and Technology
- 20133 Milano
- Italy
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17
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Affiliation(s)
- Matteo Mariani
- Institute of Molecular Sciences and Technologies; CNR; Via Golgi 19 20133 Milano Italy
| | - Federica Zaccheria
- Institute of Molecular Sciences and Technologies; CNR; Via Golgi 19 20133 Milano Italy
| | - Nicola Scotti
- Institute of Molecular Sciences and Technologies; CNR; Via Golgi 19 20133 Milano Italy
| | - Rinaldo Psaro
- Institute of Molecular Sciences and Technologies; CNR; Via Golgi 19 20133 Milano Italy
| | - Nicoletta Ravasio
- Institute of Molecular Sciences and Technologies; CNR; Via Golgi 19 20133 Milano Italy
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18
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Affiliation(s)
- Matteo Mariani
- Institute of Molecular Sciences and Technologies; CNR; Via Golgi 19 20133 Milano Italy
| | - Federica Zaccheria
- Institute of Molecular Sciences and Technologies; CNR; Via Golgi 19 20133 Milano Italy
| | - Nicola Scotti
- Institute of Molecular Sciences and Technologies; CNR; Via Golgi 19 20133 Milano Italy
| | - Rinaldo Psaro
- Institute of Molecular Sciences and Technologies; CNR; Via Golgi 19 20133 Milano Italy
| | - Nicoletta Ravasio
- Institute of Molecular Sciences and Technologies; CNR; Via Golgi 19 20133 Milano Italy
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19
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Scotti N, Ravasio N, Psaro R, Evangelisti C, Dworakowska S, Bogdal D, Zaccheria F. Copper mediated epoxidation of high oleic natural oils with a cumene–O2 system. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2015.02.008] [Citation(s) in RCA: 25] [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: 11/28/2022] Open
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20
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Scotti N, Dangate M, Gervasini A, Evangelisti C, Ravasio N, Zaccheria F. Unraveling the Role of Low Coordination Sites in a Cu Metal Nanoparticle: A Step toward the Selective Synthesis of Second Generation Biofuels. ACS Catal 2014. [DOI: 10.1021/cs500581a] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Nicola Scotti
- CNR, Institute of Molecular Science and Technologies (CNR-ISTM) and ‡Dipartimento di
Chimica, Università di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Milind Dangate
- CNR, Institute of Molecular Science and Technologies (CNR-ISTM) and ‡Dipartimento di
Chimica, Università di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Antonella Gervasini
- CNR, Institute of Molecular Science and Technologies (CNR-ISTM) and ‡Dipartimento di
Chimica, Università di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Claudio Evangelisti
- CNR, Institute of Molecular Science and Technologies (CNR-ISTM) and ‡Dipartimento di
Chimica, Università di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Nicoletta Ravasio
- CNR, Institute of Molecular Science and Technologies (CNR-ISTM) and ‡Dipartimento di
Chimica, Università di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Federica Zaccheria
- CNR, Institute of Molecular Science and Technologies (CNR-ISTM) and ‡Dipartimento di
Chimica, Università di Milano, Via Golgi 19, 20133 Milano, Italy
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21
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Dworakowska S, Bogdał D, Zaccheria F, Ravasio N. The role of catalysis in the synthesis of polyurethane foams based on renewable raw materials. Catal Today 2014. [DOI: 10.1016/j.cattod.2013.11.054] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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22
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Santoro F, Psaro R, Ravasio N, Zaccheria F. N-Alkylation of amines through hydrogen borrowing over a heterogeneous Cu catalyst. RSC Adv 2014. [DOI: 10.1039/c3ra44364g] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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23
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Mariani M, Zaccheria F, Psaro R, Ravasio N. Some insight into the role of different copper species as acids in cellulose deconstruction. CATAL COMMUN 2014. [DOI: 10.1016/j.catcom.2013.07.010] [Citation(s) in RCA: 13] [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: 11/30/2022] Open
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24
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Abstract
The production of H2 from HCOOH was achieved using simple Cu compounds and different HCOOH/amine adducts.
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Affiliation(s)
- Nicola Scotti
- Institute of Molecular Science and Technology CNR
- 20133 Milano, Italy
| | - Rinaldo Psaro
- Institute of Molecular Science and Technology CNR
- 20133 Milano, Italy
| | - Nicoletta Ravasio
- Institute of Molecular Science and Technology CNR
- 20133 Milano, Italy
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25
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Gava R, Biffis A, Tubaro C, Zaccheria F, Ravasio N. Heterogeneous copper-based catalysts for the amidation of activated C H bonds. CATAL COMMUN 2013. [DOI: 10.1016/j.catcom.2013.06.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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26
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Scotti N, Ravasio N, Zaccheria F, Psaro R, Evangelisti C. Epoxidation of alkenes through oxygen activation over a bifunctional CuO/Al2O3 catalyst. Chem Commun (Camb) 2013; 49:1957-9. [PMID: 23358661 DOI: 10.1039/c3cc37843h] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Chan-Thaw CE, Marelli M, Psaro R, Ravasio N, Zaccheria F. New generation biofuels: γ-valerolactone into valeric esters in one pot. RSC Adv 2013. [DOI: 10.1039/c2ra23043g] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Fraile JM, Le Jeune K, Mayoral JA, Ravasio N, Zaccheria F. CuO/SiO2 as a simple, effective and recoverable catalyst for alkylation of indole derivatives with diazo compounds. Org Biomol Chem 2013; 11:4327-32. [DOI: 10.1039/c3ob40264a] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Zaccheria F, Scotti N, Marelli M, Psaro R, Ravasio N. Unravelling the properties of supported copper oxide: can the particle size induce acidic behaviour? Dalton Trans 2013. [DOI: 10.1039/c2dt32454g] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Santoro F, Psaro R, Ravasio N, Zaccheria F. Reductive Amination of Ketones or Amination of Alcohols over Heterogeneous Cu Catalysts: Matching the Catalyst Support with the N-Alkylating Agent. ChemCatChem 2012. [DOI: 10.1002/cctc.201200213] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Zaccheria F, Ravasio N, Chan-Thaw CE, Scotti N, Bondioli P. A Bifunctional Copper Catalyst for the One Pot-One Step Esterification + Hydrogenation of Tall Oil Fatty Acids. Top Catal 2012. [DOI: 10.1007/s11244-012-9842-y] [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: 10/28/2022]
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Zaccheria F, Psaro R, Ravasio N, Bondioli P. Standardization of vegetable oils composition to be used as oleochemistry feedstock through a selective hydrogenation process. EUR J LIPID SCI TECH 2011. [DOI: 10.1002/ejlt.201100044] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Zaccheria F, Psaro R, Ravasio N, Sordelli L, Santoro F. Mono and Bifunctional Catalysts for Styrene Oxide Isomerization or Hydrogenation. Catal Letters 2011. [DOI: 10.1007/s10562-010-0543-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Gervasini A, Messi C, Carniti P, Ponti A, Ravasio N, Zaccheria F. Insight into the properties of Fe oxide present in high concentrations on mesoporous silica. J Catal 2009. [DOI: 10.1016/j.jcat.2008.12.016] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
An amorphous SiO(2)-ZrO(2) catalyst shows high activity in the esterification of free fatty acids contained in vegetable oils while at the same time promoting the transesterification of triglycerides. The catalyst is hence a good candidate for a low-waste deacidification pretreatment or for a one-pot biodiesel production process starting from oils with a high acid content.
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Ravasio N, Zaccheria F, Gervasini A, Messi C. A new, Fe based, heterogeneous Lewis acid: Selective isomerization of α-pinene oxide. CATAL COMMUN 2008. [DOI: 10.1016/j.catcom.2007.10.019] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Biffis A, Scattolin E, Ravasio N, Zaccheria F. Supported copper precatalysts for ligand-free, palladium-free Sonogashira coupling reactions. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.10.005] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zaccheria F, Ravasio N, Psaro R, Fusi A. Synthetic Scope of Alcohol Transfer Dehydrogenation Catalyzed by Cu/Al2O3: A New Metallic Catalyst with Unusual Selectivity. Chemistry 2006; 12:6426-31. [PMID: 16729338 DOI: 10.1002/chem.200501619] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A method for the anaerobic oxidation of a wide series of alcohols including cyclohexanols and steroidal alcohols, has been set up. It relies on a transfer dehydrogenation reaction from the substrate alcohol to styrene catalyzed by a heterogeneous, reusable copper catalyst under very mild liquid-phase experimental conditions (90 degrees C, N(2)) and shows unusual selectivity. Thus, the method is selective for the oxidation of secondary and allylic alcohols even in the presence of unprotected primary and benzylic alcohols. Electronic effects and the choice of the hydrogen acceptor account for the selectivity observed.
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Affiliation(s)
- Federica Zaccheria
- Dip. CIMA, Università degli Studi di Milano, Via G. Venezian 21, 20133 Milano, Italy
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Gervasini A, Manzoli M, Martra G, Ponti A, Ravasio N, Sordelli L, Zaccheria F. Dependence of Copper Species on the Nature of the Support for Dispersed CuO Catalysts. J Phys Chem B 2006; 110:7851-61. [PMID: 16610882 DOI: 10.1021/jp056604c] [Citation(s) in RCA: 96] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Copper catalysts prepared by chemisorption-hydrolysis technique over silica (Cu/Si) and silica-alumina (Cu/SiAl) supports were studied to understand the role of the support on the nature and surface properties of the copper species stabilized on their surfaces. The morphological and surface properties of the copper phases have been characterized by complementary techniques, such as HRTEM, EXAFS-XANES, EPR, XPS, and FTIR. For the FTIR investigation, molecular probes (CO and NO) were also adsorbed on the surfaces to test the reactivity of the copper species. Moreover, the catalytic performances of the two catalysts have been compared in the HC-SCR reaction (NO reduction by C(2)H(4)) performed in highly oxidant conditions. The superior activity and selectivity of the supported silica-alumina catalyst with respect to that supported on silica could be related with the different nature of the copper species stabilized on the two supports, as emerged from the results obtained from the spectroscopic investigations. Small and well-dispersed CuO particles were present on silica, whereas isolated copper ions predominated on silica-alumina, likely in regions rich in alumina that made some exchangeable sites available, as indicated by FTIR spectra of adsorbed CO. The less positive global charge of copper species on Cu/SiAl than in Cu/Si has been confirmed by EPR, XPS, and EXAFS-XANES analyses.
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Affiliation(s)
- Antonella Gervasini
- Dipartimento di Chimica Fisica ed Elettrochimica & Centro di Eccellenza CIMAINA, Università degli Studi di Milano, via C. Golgi 19, 20133 Milan, Italy.
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Zaccheria F, Ravasio N, Ercoli M, Allegrini P. Heterogeneous Cu-catalysts for the reductive deoxygenation of aromatic ketones without additives. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.09.041] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Zaccheria F, Ravasio N, Fusi A, Rodondi M, Psaro R. Tuning Selectivity in Terpene Chemistry: Selective Hydrogenationversus Cascade Reactions over Copper Catalysts. Adv Synth Catal 2005. [DOI: 10.1002/adsc.200404351] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Zaccheria F, Ravasio N, Psaro R, Fusi A. Heterogeneous selective catalytic hydrogenation of aryl ketones to alcohols without additives. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.03.159] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Abstract
A liquid phase, transfer dehydrogenation reaction promoted by an 8% Cu/Al(2)O(3) catalyst allows complete conversion of secondary alcohols into ketones under very mild conditions and in short times without any additives.
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Bennici S, Gervasini A, Ravasio N, Zaccheria F. Optimization of Tailoring of CuOx Species of Silica Alumina Supported Catalysts for the Selective Catalytic Reduction of NOx. J Phys Chem B 2003. [DOI: 10.1021/jp022064x] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.6] [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)
- Simona Bennici
- Dipartimento di Chimica Fisica ed Elettrochimica, Università degli Studi di Milano, Via Camillo Golgi n. 19, I-20133 Milano, Italy, and CNR Istituto ISTM, c/o Dipartimento di Chimica Inorganica, Metallorganica ed Analitica, Università degli Studi di Milano, Italy
| | - Antonella Gervasini
- Dipartimento di Chimica Fisica ed Elettrochimica, Università degli Studi di Milano, Via Camillo Golgi n. 19, I-20133 Milano, Italy, and CNR Istituto ISTM, c/o Dipartimento di Chimica Inorganica, Metallorganica ed Analitica, Università degli Studi di Milano, Italy
| | - Nicoletta Ravasio
- Dipartimento di Chimica Fisica ed Elettrochimica, Università degli Studi di Milano, Via Camillo Golgi n. 19, I-20133 Milano, Italy, and CNR Istituto ISTM, c/o Dipartimento di Chimica Inorganica, Metallorganica ed Analitica, Università degli Studi di Milano, Italy
| | - Federica Zaccheria
- Dipartimento di Chimica Fisica ed Elettrochimica, Università degli Studi di Milano, Via Camillo Golgi n. 19, I-20133 Milano, Italy, and CNR Istituto ISTM, c/o Dipartimento di Chimica Inorganica, Metallorganica ed Analitica, Università degli Studi di Milano, Italy
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