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A specific formation of an iridium(III) hydrido complex bearing 8-(diphenylphosphino)quinoline. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Pilar Betoré M, García‐Orduña P, Lahoz FJ, Casado MA, Polo V, Oro LA. C–N Bond Coupling Reactions of Ammonia with Acetone Promoted by Iridium and Rhodium Complexes: Experimental and DFT Studies. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600925] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- M. Pilar Betoré
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
| | - Pilar García‐Orduña
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
| | - Fernando J. Lahoz
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
| | - Miguel A. Casado
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
| | - Víctor Polo
- Departamento de Química Física e Instituto de Biocomputación y Física de Sistemas Complejos (BIFI) Universidad de Zaragoza Zaragoza Spain
| | - Luis A. Oro
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
- Centre of Research Excellence in Petroleum and Petrochemicals King Fahd University of Petroleum & Minerals 31261 Dhahran Saudi Arabia
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Gunay A, Mantell MA, Field KD, Wu W, Chin M, Emmert MH. Oxidation catalysis in air with Cp*Ir: influence of added ligands and reaction conditions on catalytic activity and stability. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01203h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The systematic evaluation of Ir catalysts generates the highest reported TONs and a safe protocol for air oxidation.
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Affiliation(s)
- Ahmet Gunay
- Department of Chemistry and Biochemistry
- Worcester Polytechnic Institute
- Worcester
- USA
| | - Mark A. Mantell
- Department of Chemistry and Biochemistry
- Worcester Polytechnic Institute
- Worcester
- USA
| | - Kathleen D. Field
- Department of Chemistry and Biochemistry
- Worcester Polytechnic Institute
- Worcester
- USA
| | - Wenbo Wu
- Department of Chemistry and Biochemistry
- Worcester Polytechnic Institute
- Worcester
- USA
| | - Michael Chin
- Department of Chemistry and Biochemistry
- Worcester Polytechnic Institute
- Worcester
- USA
| | - Marion H. Emmert
- Department of Chemistry and Biochemistry
- Worcester Polytechnic Institute
- Worcester
- USA
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Kluge T, Bette M, Rüffer T, Bruhn C, Wagner C, Ströhl D, Schmidt J, Steinborn D. Activation of Acetyl Ligands through Hydrogen Bonds: A New Way to Platinum(II) Complexes Bearing Protonated Iminoacetyl Ligands. Organometallics 2013. [DOI: 10.1021/om400812w] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Tim Kluge
- Institute
of Chemistry, Martin Luther University Halle-Wittenberg, Kurt-Mothes-Straße 2, D-06120 Halle, Germany
| | - Martin Bette
- Institute
of Chemistry, Martin Luther University Halle-Wittenberg, Kurt-Mothes-Straße 2, D-06120 Halle, Germany
| | - Tobias Rüffer
- Institute
of Chemistry, Chemnitz University of Technology, Straße der Nationen 62, D-09111 Chemnitz, Germany
| | - Clemens Bruhn
- Institute
of Chemistry, University of Kassel, Heinrich-Plett-Straße 40, D-34132 Kassel, Germany
| | - Christoph Wagner
- Institute
of Chemistry, Martin Luther University Halle-Wittenberg, Kurt-Mothes-Straße 2, D-06120 Halle, Germany
| | - Dieter Ströhl
- Institute
of Chemistry, Martin Luther University Halle-Wittenberg, Kurt-Mothes-Straße 2, D-06120 Halle, Germany
| | - Jürgen Schmidt
- Department
of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle, Germany
| | - Dirk Steinborn
- Institute
of Chemistry, Martin Luther University Halle-Wittenberg, Kurt-Mothes-Straße 2, D-06120 Halle, Germany
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Odame F, Kleyi P, Hosten E, Betz R, Lobb K, Tshentu Z. The formation of 2,2,4-trimethyl-2,3-dihydro-1H-1,5-benzodiazepine from 1,2-diaminobenzene in the presence of acetone. Molecules 2013; 18:14293-305. [PMID: 24256923 PMCID: PMC6269685 DOI: 10.3390/molecules181114293] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 11/11/2013] [Accepted: 11/11/2013] [Indexed: 11/16/2022] Open
Abstract
In an attempt to synthesize a 2-substituted benzimidazole from the reaction of o-phenylenediamine and isophthalic acid in the presence of acetone and ethanol under microwave irradiation, a salt of the isophthalate ion and 2,2,4-trimethyl-2,3-dihydro-1H-1,5-benzodiazepin-5-ium ion was obtained. The condensation of two moles of acetone with the amine groups resulted in the formation of the benzodiazepine which crystallized as an iminium cation forming a salt with the isophthalate anion. The formation of benzodiazepine was also confirmed by performing the reaction of o-phenylenediamine with excess acetone in ethanol under conventional heating conditions. The compounds were characterized by NMR, FTIR, HRMS and microanalysis as well as X-ray crystallography. The reaction mechanism leading to the formation of benzodiazepine is also discussed.
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Affiliation(s)
- Felix Odame
- Department of Chemistry, Nelson Mandela Metropolitan University, P.O. Box 77000, Port Elizabeth 6031, South Africa; E-Mails: (F.O.); (P.K.); (E.H.); (R.B.)
| | - Phumelele Kleyi
- Department of Chemistry, Nelson Mandela Metropolitan University, P.O. Box 77000, Port Elizabeth 6031, South Africa; E-Mails: (F.O.); (P.K.); (E.H.); (R.B.)
| | - Eric Hosten
- Department of Chemistry, Nelson Mandela Metropolitan University, P.O. Box 77000, Port Elizabeth 6031, South Africa; E-Mails: (F.O.); (P.K.); (E.H.); (R.B.)
| | - Richard Betz
- Department of Chemistry, Nelson Mandela Metropolitan University, P.O. Box 77000, Port Elizabeth 6031, South Africa; E-Mails: (F.O.); (P.K.); (E.H.); (R.B.)
| | - Kevin Lobb
- Department of Chemistry, Rhodes University, P.O. Box 94, Grahamstown 6140, South Africa; E-Mail:
| | - Zenixole Tshentu
- Department of Chemistry, Nelson Mandela Metropolitan University, P.O. Box 77000, Port Elizabeth 6031, South Africa; E-Mails: (F.O.); (P.K.); (E.H.); (R.B.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +27-41-504-2074; Fax: +27-41-504-4236
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Fortman GC, Slawin AMZ, Nolan SP. Highly Active Iridium(III)–NHC System for the Catalytic B–N Bond Activation and Subsequent Solvolysis of Ammonia–Borane. Organometallics 2011. [DOI: 10.1021/om2007437] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- George C. Fortman
- EaStCHEM School of Chemistry, University of St. Andrews, St Andrews, KY16 9ST, U.K
| | | | - Steven P. Nolan
- EaStCHEM School of Chemistry, University of St. Andrews, St Andrews, KY16 9ST, U.K
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Hirner JJ, Shi Y, Blum SA. Organogold reactivity with palladium, nickel, and rhodium: transmetalation, cross-coupling, and dual catalysis. Acc Chem Res 2011; 44:603-13. [PMID: 21644576 DOI: 10.1021/ar200055y] [Citation(s) in RCA: 175] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Using two transition metals to simultaneously catalyze a reaction can offer distinct opportunities for reactivity and selectivity when compared to using single-metal catalyst systems. Creating dual transition metal catalytic systems is complicated, however, by challenges in predicting compatible reactivities and designing turnover pathways for both metals. In this Account, we describe our development of dual-metal catalysis reactions involving gold and a second transition metal. The unique rearrangement intermediates accessible through gold-only catalysis, which exploits the soft Lewis acidity of Au(I), make gold an attractive partner for dual-metal catalysis reactions. Because of the complexity of achieving simultaneous turnover of two catalysts and predicting compatibilities, our approach has been to first gain a fundamental understanding of the reactivity of the two metals with each other, both in stoichiometric and monocatalyzed reactions. To this end, we have investigated the combined reactivity of organogold compounds with palladium, nickel, and rhodium. We narrate the intricacies of turning over two catalysts simultaneously and thereby illuminate the valuable role of fundamental studies in identifying the optimal conditions to promote desirable two-metal reactivity and compatibility. Transmetalation, redox reactivity, and new mechanisms for dual-metal catalytic turnover were probed from this standpoint. We have applied the knowledge gained through these studies to the development of reactions that are dual-catalyzed by gold and palladium, as well as nickel- and rhodium-catalyzed reactions of organogold compounds. More broadly, these new reactions expand the reactivity available to catalytic organogold intermediates via trapping and functionalization reactions with other transition metals. Our investigations reveal strategies useful for designing dual-metal reactions with gold. First, the versatility of gold as a transmetalation partner suggests that many potential methods may exist to intercept catalytic organogold intermediates with a second transition metal. Second, ligands on both metals should be selected carefully in order to prevent catalyst deactivation. Finally, reactions must be designed such that any oxidative steps involving the second metal outcompete undesired reactions with redox-active organogold compounds. We believe that the application of these principles will allow for the design of a diverse set of dual-catalyzed functionalizations befitting the wide variety of gold-catalyzed transformations already established.
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Affiliation(s)
- Joshua J. Hirner
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Yili Shi
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Suzanne A. Blum
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
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Kumaran E, Sridevi VS, Leong WK. Orthometalated Amino-Carbene Derivatives of Iridium via Anilines and Terminal Alkynes. Organometallics 2010. [DOI: 10.1021/om100803g] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Elumalai Kumaran
- Division of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | | | - Weng Kee Leong
- Division of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
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Vicente J, Chicote MT, Martínez-Martínez AJ, Bautista D. Synthesis of 1,2-Dihydroquinazolinium-4-yl Palladium Complexes through a Cyclization Reaction. Organometallics 2009. [DOI: 10.1021/om900616v] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- José Vicente
- Grupo de Química Organometálica, Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, E-30071 Murcia, Spain
| | - María Teresa Chicote
- Grupo de Química Organometálica, Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, E-30071 Murcia, Spain
| | - Antonio J. Martínez-Martínez
- Grupo de Química Organometálica, Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, E-30071 Murcia, Spain
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Neshat A, Seambos CL, Beck JF, Schmidt JAR. Mono-anionic acetophenone imine ligands: synthesis, ortho-lithiation and first examples of group (v) metal complexes. Dalton Trans 2009:4987-5000. [DOI: 10.1039/b903836a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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