Academic literature on the topic 'Copper catalysi'
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Journal articles on the topic "Copper catalysi"
Dadashi-Silab, Sajjad, and Krzysztof Matyjaszewski. "Iron Catalysts in Atom Transfer Radical Polymerization." Molecules 25, no. 7 (April 3, 2020): 1648. http://dx.doi.org/10.3390/molecules25071648.
Full textTrigoura, Leslie, Yalan Xing, and Bhanu P. S. Chauhan. "Recyclable Catalysts for Alkyne Functionalization." Molecules 26, no. 12 (June 9, 2021): 3525. http://dx.doi.org/10.3390/molecules26123525.
Full textQuerard, Pierre, Inna Perepichka, Eli Zysman-Colman, and Chao-Jun Li. "Copper-catalyzed asymmetric sp3 C–H arylation of tetrahydroisoquinoline mediated by a visible light photoredox catalyst." Beilstein Journal of Organic Chemistry 12 (December 6, 2016): 2636–43. http://dx.doi.org/10.3762/bjoc.12.260.
Full textNewman, R. A., J. A. Blazy, T. G. Fawcett, L. F. Whiting, and R. A. Stowe. "Use of the Dow-Developed DSC/XRD/MS in the Study of Several Model Copper-Based Catalyst Systems." Advances in X-ray Analysis 30 (1986): 493–502. http://dx.doi.org/10.1154/s0376030800021650.
Full textBatool, Kiran, Rubia Shafique, Naseem Akhtar, Tahira Yaqoob, Muqaddas Jabeen, Arshad Mehmood, and Raheela Jabeen. "Synthesis and characterization of Zinc-Doped Copper Chromites by sol gel method." JOURNAL OF NANOSCOPE (JN) 2, no. 1 (June 30, 2021): 15–28. http://dx.doi.org/10.52700/jn.v2i1.23.
Full textYun, Hafizah Abdul Halim, Ramli Mat, Tuan Amran Tuan Abdullah, Mahadhir Mohamed, and Anwar Johariand Asmadi Ali. "Activity of Copper and Nickel Loaded on HZSM-5Zeolite Based Catalyst for Steam Reforming of Glycerol to Hydrogen." Applied Mechanics and Materials 699 (November 2014): 504–9. http://dx.doi.org/10.4028/www.scientific.net/amm.699.504.
Full textSanta Cruz-Navarro, Dalia, Miguel Torres-Rodríguez, Mirella Gutiérrez-Arzaluz, Violeta Mugica-Álvarez, and Sibele Berenice Pergher. "Comparative Study of Cu/ZSM-5 Catalysts Synthesized by Two Ion-Exchange Methods." Crystals 12, no. 4 (April 13, 2022): 545. http://dx.doi.org/10.3390/cryst12040545.
Full textThongboon, Surached, Pacharaporn Rittiron, Danusorn Kiatsaengthong, Thanaphat Chukeaw, and Anusorn Seubsai. "Propylene Epoxidation to Propylene Oxide Over RuO2, CuO, TeO2, and TiO2 Supported on Modified Mesoporous Silicas." Journal of Nanoscience and Nanotechnology 20, no. 6 (June 1, 2020): 3466–77. http://dx.doi.org/10.1166/jnn.2020.17408.
Full textDin, Israf Ud, Maizatul Shima Shaharun, Duvvuri Subbarao, and A. Naeem. "Synthesis, Characterization and Activity Pattern of Carbon Nanofibres Based Cu-ZrO2 Catalyst in the Hydrogenation of Carbon Dioxide to Methanol." Advanced Materials Research 925 (April 2014): 349–53. http://dx.doi.org/10.4028/www.scientific.net/amr.925.349.
Full textNesterova, Oksana V., Armando J. L. Pombeiro, and Dmytro S. Nesterov. "Tetranuclear Copper Complexes with Bulky Aminoalcohol Ligands as Catalysts for Oxidative Phenoxazinone Synthase-like Coupling of Aminophenol: A Combined Experimental and Theoretical Study." Catalysts 12, no. 11 (November 10, 2022): 1408. http://dx.doi.org/10.3390/catal12111408.
Full textDissertations / Theses on the topic "Copper catalysi"
Sherborne, Grant John. "Catalyst deactivation in copper-catalysed C-N cross-coupling reactions." Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/17595/.
Full textBoreux, Arnaud. "Development of new dual catalysis systems with gold and copper." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLX053/document.
Full textDuring the last decades, transition metal catalysis has become an essential tool in organic synthesis. Each year, thousands of publications report the development of new reactions mediated by metal complexes. This manuscript depicts our contribution to this field. The first chapter presents a general comparison of the reactivity of coinage metals (Cu, Ag, Au) complexes in catalysis, with a special focus on their ability to perform electrophilic activation (Au) or nucleophilic transfer (Cu) reactions. Representative examples are given to illustrate these concepts. In the second part of the manuscript, the synthesis of trifluoromethylated allenes and enones by gold(I) catalysis is reported. A general method for the preparation of CF3-allenes has been developed based on a gold(I)-mediated 1,5-hydride shift. The scope and limitations of the method, as well as some subsequent transformations of the products are described. Using similar substrates, a gold(I)-catalyzed [3,3]-acetate rearrangement was applied to the preparation of CF3-enones. The employment of this method into a one-pot procedure involving a subsequent Diels-Alder reaction is also reported. The third part focuses on the copper(I)-catalyzed borofunctionalization of allenes. The recent reports from the literature are reviewed, and our contributions to this area of research are described through the study of a new copper(I)-catalyzed allene boroacylation method. Finally, preliminary results on the elaboration of a copper(I)/gold(I) catalytic one-pot process are presented
Emera, Flory. "Method development for copper dispersion evaluation and copper-based catalysts characterization." Thesis, Uppsala universitet, Strukturkemi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-206922.
Full textLonca, Geoffroy. "Development of new reactions of organic synthesis catalyzed by gold and copper." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLX057/document.
Full textThis manuscript presents the development of gold- and copper-catalyzed methods for the synthesis of heterocyclic compounds and trifluoromethylated products.Firstly, a gold-catalyzed synthesis of trifluoromethyl allenes was developed, relying on a 1,5 hydride shift. This method allows to access, in a very efficient and selective way, a large range of perfluoroalkylated allenes, of which the synthetic potential was also demonstrated.Afterwards, the catalytic power of gold was then used in a synthesis of 2H-1,3-oxazines, relying on a 6-endo type cyclization of azide-yne substrates. This methods allows to access, in very mild condition, an unprecedently large range of polysubstituted oxazines in excellent yields.Finally, a method for the copper-catalyzed radical hydrofunctionalization of alkenols was developed. The strategy involved relies on a 1,5 hydrogen abstraction, in which a benzyloxy moiety plays the role of the hydrogen donor
Mikus, Malte Sebastian. "Mechanistic Studies, Catalyst Development, and Reaction Design in Olefin Metathesis:." Thesis, Boston College, 2019. http://hdl.handle.net/2345/bc-ir:108382.
Full textChapter 1. Exploring Ligand Effects in Ruthenium Dithiolate Carbene Complexes. Ruthenium dithiolate metathesis catalysts discovered in the Hoveyda group have been a valuable addition to the field of olefin metathesis. While the catalyst shows unique selectivity and reactivity, quantifying and mapping key interactions in the catalyst framework to elucidate and explain causes is difficult. We, therefore, decided to use the neutral chelating or monodentate ligand, controlling initiation, as a structural probe. By altering its properties and observing changes in the catalyst, we sought to deepen our understanding of these complexes. We established a trans influence series with over 20 catalysts and correlated the impact on catalyst initiation. Further, we show that in the case of strongly σ-donating and π-accepting ligands such as phosphites and isonitriles, the complex exhibits fluxional behavior. The catalysts ground state is elevated to such a degree that thiolate Ruthenium bonds become labile and rapidly exchange. While Ruthenium dithiolate catalysts were readily applied to metathesis polymerization, their use in the synthesis of small molecules was initially less forthcoming. Specifically, reactions involving terminal olefins lead to rapid catalyst deactivation and only low conversion. We were able to determine that the potential energy stored in the trans-influence between the thiolate ligand and the NHC can be released in a sulfur shift to reactive Ruthenium methylidene species. Since methylidenes are formed by reaction with terminal olefins, use of an excess of internal olefins can prevent their formation. Chapter 2. Harnessing Catalyst Fluxionality in Olefin Metathesis. Depending on its use, material requirements can vary significantly. Materials that can easily be adapted to a given application, for example by varying tensile strength, melting point or solubility, are desirable. Controlling the polymers tacticity (the adjacent stereocenters in a polymer chain) is a straight forward way to achieve just that. Ru dithiolate catalysts should give highly syndiotactic polymers due to their single stereocenter undergoing inversion during every metathesis step. The fluxional nature of the catalyst allows for control of polymer tacticity from 50% (atactic) to ≥95% syndiotacticity by changing monomer concentration. We determined the factors which are responsible for fluxionality and synthesized complexes that give either high or low levels of tacticity over a broader range of monomer concentration. Chapter 3. Harnessing Catalyst Fluxionality in Olefin Metathesis. The importance of fluorine-containing molecules is hard to understate, keeping in mind the surge of new methodologies for their synthesis and the medical breakthroughs they enable. However, efficient and practical syntheses of stereodefined alkenyl fluorides are rare. In this context, we have developed enantioselective boryl allylic substitution of allylic fluorides, which yield enantioenriched γ-alkenyl fluoride substituted allyl boronate esters. The reaction is catalyzed by Cu-based catalysts that are prepared in-situ and delivered as products with high yield and enantioselectivity. Mechanistic inquiry shows the reaction is not a concerted allylic substitution. An intermediate Cu alkyl complex is formed after the Cu boron addition is made to the double bond, which only slowly undergoes β-fluorine elimination in the presence of a Lewis acid
Thesis (PhD) — Boston College, 2019
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Chemistry
Kydd, Richard Berwick Chemical Sciences & Engineering Faculty of Engineering UNSW. "Synthesis and characterisation of gold and copper oxidation catalysts." Awarded by:University of New South Wales. Chemical Sciences & Engineering, 2009. http://handle.unsw.edu.au/1959.4/44549.
Full textGoodby, Brian Edward. "Characterization of copper/zinc-oxide catalysts for methanol reformation." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184479.
Full textHautier, Alexandre. "Synthesis and characterization of copper-peptide systems for oxidation catalysis." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0758.
Full textCatalysis gives access to efficient transformations at a lower cost in energy and generally offers possibilities to reduce or eliminate the need for and the generation of hazardous compounds . The development of a catalyst is often inspired by Nature that performs challenging chemical transformations with high rates and high selectivity under mild conditions and aqueous media. For example, copper dependent proteins can react to oxidize a broad range of substrates. Inspired by biological systems, metallopeptides have recently emerged as reliable platforms to evolve new catalysts because they are chemically accessible, easy to handle and fine-tune.In this work we synthetized a family of bioinspired decapeptides containing His and Asp residues as metal ion coordinating amino acids. Their copper coordination properties were studied using pH potentiometry, and different spectroscopic techniques (UV-Vis, CD, EPR, NMR). The data indicates that all the peptides bind copper and form similar major copper(II) species at a pH close to neutrality where copper (II) is coordinated by the side-chains of His and Asp residues. Finally, the capabilities of these metallopeptides to perform a variety of oxidative transformations in aqueous solution at room temperature, using H2O2 as the oxidant were evaluated in parallel with that of amyloid-β peptides copper (II) complexes. This study revealed that i) the scaffold of the designed peptides had an impact on the catalytic efficiencies and enantiomeric excess and ii) the amyloid-β peptides copper (II) complexes are less active than our designed copper(II) peptide systems
Calogero, F. "NEW SYNTHETIC PROCESSES FOR THE APIS INDUSTRIAL PRODUCTION: THE CASE OF SILODOSIN." Doctoral thesis, Università degli Studi di Milano, 2014. http://hdl.handle.net/2434/243613.
Full textAli, H. Saad Moh'd. "Selective catalytic oxidation of ammonia using copper and iron supported on ZSM-5 catalysts." Thesis, University of Manchester, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.525661.
Full textBooks on the topic "Copper catalysi"
Bagri, R. Structure sensitivity in supported copper catalyst. Manchester: UMIST, 1995.
Find full textRajaie, R. Torbati. Structure sensitivity in supported copper catalysts. Manchester: UMIST, 1996.
Find full textGould, L. J. Structure sensitivity in supported copper catalysts. Manchester: UMIST, 1994.
Find full textZemicael, F. W. Structure sensitivity of model copper catalysts and Cu/ZnO/Al2O3 methanol synthesis and low temperature shift catalysis. Manchester: UMIST, 1996.
Find full textKubota, Koji. Synthesis of Functionalized Organoboron Compounds Through Copper(I) Catalysis. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4935-4.
Full text1945-, Floris Giovanni, and Mondovì Bruno, eds. Copper amine oxidases: Structures, catalytic mechanisms, and role in pathophysiology. Boca Raton: Taylor & Francis, 2009.
Find full textShahani, C. J. Effect of some deacidificaiton agents on copper-catalyzed degradation of paper. Washington, D.C: Preservation Directorate, Library of Congress, 1995.
Find full textShahani, Chandru J. Effect of some deacidification agents on copper-catalyzed degradation of paper. Washington, D.C: Preservation Directorate, Library of Congress, 1995.
Find full textAnilkumar, Gopinathan, and Salim Saranya. Copper Catalysis in Organic Synthesis. Wiley & Sons, Limited, John, 2020.
Find full textAnilkumar, Gopinathan, and Salim Saranya, eds. Copper Catalysis in Organic Synthesis. Wiley, 2020. http://dx.doi.org/10.1002/9783527826445.
Full textBook chapters on the topic "Copper catalysi"
Feringa, Ben L. "Oxidation Catalysis; A Dinuclear Approach." In Bioinorganic Chemistry of Copper, 306–24. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-6875-5_24.
Full textCant, N. W., B. Sexton, D. L. Trimm, and M. S. Wainwright. "Supported Copper Catalysts: Surface Studies and Catalytic Performance." In Springer Proceedings in Physics, 290–99. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-84933-6_23.
Full textGorzka, Zbigniew, Marek Kaźmierczak, and Andrzej Żarczyński. "Catalytic Oxidation of 1,2-Dichloropropane on Copper-Zinc Catalyst." In Chemistry for the Protection of the Environment 3, 143–47. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4757-9664-3_17.
Full textBrown, E. S., and B. D. Dombek. "By Copper Catalysts." In Inorganic Reactions and Methods, 266–67. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145319.ch88.
Full textKunz, Klaus, and Norbert Lui. "Process Chemistry and Copper Catalysis." In Copper-Mediated Cross-Coupling Reactions, 725–43. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118690659.ch19.
Full textStibrany, Robert T. "Copper-Based Olefin Polymerization Catalysts: High-Pressure19F NMR Catalyst Probe." In ACS Symposium Series, 210–21. Washington, DC: American Chemical Society, 2003. http://dx.doi.org/10.1021/bk-2003-0857.ch015.
Full textLikhtenshtein, Gertz I. "Copper-Containing Enzymes." In Chemical Physics of Redox Metalloenzyme Catalysis, 187–98. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73100-6_8.
Full textMaria, Anna, and Raspolli Galletti. "Copper Catalysts for Olefin Polymerization." In Handbook of Transition Metal Polymerization Catalysts, 497–511. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2010. http://dx.doi.org/10.1002/9780470504437.ch14.
Full textStibrany, Robert T., Abhimanyu O. Patil, and Stephen Zushma. "Copper-Based Olefin Polymerization Catalysts." In ACS Symposium Series, 194–209. Washington, DC: American Chemical Society, 2003. http://dx.doi.org/10.1021/bk-2003-0857.ch014.
Full textFinn, M. G., and Valery V. Fokin. "Copper-Catalyzed Azide-Alkyne Cycloaddition (CuAAC)." In Catalysis without Precious Metals, 235–60. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2010. http://dx.doi.org/10.1002/9783527631582.ch10.
Full textConference papers on the topic "Copper catalysi"
Patel, Sanjay, and K. K. Pant. "Hydrogen Production for PEM Fuel Cells via Oxidative Steam Reforming of Methanol Using Cu-Al Catalysts Modified With Ce and Cr." In ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2006. http://dx.doi.org/10.1115/fuelcell2006-97209.
Full textPARK, S. J., B. J. KIM, and Y. S. JANG. "CATALYTIC REDUCTION MECHANISM OF NITRIC OXIDE OVER ACFs/COPPER CATALYST." In Proceedings of the Third Pacific Basin Conference. WORLD SCIENTIFIC, 2003. http://dx.doi.org/10.1142/9789812704320_0088.
Full textDas, Randip K., B. B. Ghosh, Souvik Bhattacharyya, and Maya DuttaGupta. "Catalytic Control of SI Engine Emissions Over Ion-Exchanged X-Zeolites." In ASME 1997 Turbo Asia Conference. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/97-aa-077.
Full textWalke, P. V., and N. V. Deshpande. "Testing of New Catalyst for Compression Ignition Engine Exhaust Treatment." In ASME 2005 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/icef2005-1277.
Full textWalke, P. V., N. V. Deshpande, and L. P. Daddamwar. "Operating Parameters of Catalysts With Catalytic Converter for Compression Ignition Engine." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-82974.
Full textWalke, P. V., N. V. Deshpande, and A. K. Mahalle. "Performance and Emission Characteristics of a Diesel Engine Using Catalysts With Exhaust Gas Ricirculation." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14484.
Full textMuthiya, S. Jenoris, Induja Saravanan, Gajalakshmi Balachandran, and 1Lt P. S. Raghavan. "Experimental Investigation in Diesel Oxidation Catalyst by Developing a Novel Catalytic Materials for the Control of HC, CO and Smoke Emissions." In International Conference on Advances in Design, Materials, Manufacturing and Surface Engineering for Mobility. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2020. http://dx.doi.org/10.4271/2020-28-0458.
Full textWang, Jung-Hui, and Chuin-Tih Yeh. "Washcoating Copper Catalyst With Various Metal Oxides Sol Onto Microchannel Reactor for Steam Reforming of Methanol." In ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2010. http://dx.doi.org/10.1115/fuelcell2010-33305.
Full textKrishna, M. V. S. Murali, Ch Indira Priyadarsini, P. Ushasri, P. V. K. Murthy, and D. Baswaraju. "Comparative Studies on Performance and Emissions of Two Stroke and Four Stroke Copper Coated Spark Ignition Engines With Methanol Blended Gasoline." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-62264.
Full textKrishna, Maddali V. S. Murali, Ch Indira Priyadarsini, Y. Nagini, S. Naga Sarada, P. Usha Sri, and D. Srikanth. "Effect of Spark Ignition Timing on Copper Coated Spark Ignition Engine With Alcohol Blended Gasoline With Catalytic Converter." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-50159.
Full textReports on the topic "Copper catalysi"
Owens, L., T. M. Tillotson, and L. M. Hair. Characterization of vanadium/silica and copper/silica aerogel catalysts. Office of Scientific and Technical Information (OSTI), September 1995. http://dx.doi.org/10.2172/212472.
Full textChoi, A. S. DWPF coupled feed flowsheet material balance with batch one sludge and copper nitrate catalyst. Office of Scientific and Technical Information (OSTI), September 1993. http://dx.doi.org/10.2172/10124416.
Full textSpassova, Ivanka, Nataliya Stoeva, Petya Georgieva, Mariana Khristova, and Dimitar Mehandjiev. Copper Catalysts Supported on Alumina-Carbon Composites in NO Reduction with CO. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, August 2020. http://dx.doi.org/10.7546/crabs.2020.08.04.
Full textJernigan, Glenn Geoffrey. Carbon monoxide oxidation over three different states of copper: Development of a model metal oxide catalyst. Office of Scientific and Technical Information (OSTI), October 1994. http://dx.doi.org/10.2172/10107712.
Full textT. Brent Gunnoe. Transition Metal Catalyzed Hydroarylation of Multiple Bonds: Exploration of Second Generation Ruthenium Catalysts and Extension to Copper Systems. Office of Scientific and Technical Information (OSTI), February 2011. http://dx.doi.org/10.2172/1005126.
Full textChefetz, Benny, Baoshan Xing, Leor Eshed-Williams, Tamara Polubesova, and Jason Unrine. DOM affected behavior of manufactured nanoparticles in soil-plant system. United States Department of Agriculture, January 2016. http://dx.doi.org/10.32747/2016.7604286.bard.
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