1
|
Hussein AA, Ariffin A. Remote Steric and Electronic Effects of N-Heterocyclic Carbene Ligands on Alkene Reactivity and Regioselectivity toward Hydrocupration Reactions: The Role of Expanded-Ring N-Heterocyclic Carbenes. J Org Chem 2023; 88:13009-13021. [PMID: 37649423 DOI: 10.1021/acs.joc.3c01121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
The remote groups in N-heterocyclic carbene (NHC) ligands have a significant influence on metal-catalyzed reactions. We examine how remote bulkiness, electronic groups, and expanded-ring NHCs (ER-NHCs) influence alkene reactivity and regioselectivity toward hydrocupration using density functional theory calculations. The impact of remote steric bulkiness on the Cu-H insertion rate is analyzed, revealing a strong correlation between the steric substituent constant and rate ratio, where a bulky group increases the rate due to reduced steric effects in the transition state (TS). The steric properties of the examined catalysts (with a remote group R2 = CPh3, CHPh2, CH2Ph, CH3, and H) and their corresponding TSs are found to be modulated greatly by the remote steric substitution group and the ring size of the NHC ligand. Enhanced bulkiness enhances the nucleophilic Cu-H moiety. The remote electronic groups have a smaller impact on insertion barrier compared to that of steric hindrance. Furthermore, ER-NHC exploration indicates that NHCs with over five-membered rings have a significantly negative influence on the reaction rate. Finally, with a highly bulky group (R2 = CPh3), anti-Markovnikov insertion preference is attributed to high interaction energy and improved steric properties. Overall, our findings here provide valuable insights for the development of a more effective catalyst in metal-catalyzed reactions.
Collapse
Affiliation(s)
- Aqeel A Hussein
- Department of Medical Laboratory Science, College of Science, Komar University of Science and Technology, Sulaymaniyah, Kurdistan Region 46001, Iraq
- Department of Biology, College of Science, Al-Qasim Green University, Al-Qassim, Babylon 51013, Iraq
| | - Azhar Ariffin
- Department of Chemistry, Faculty of Science, University Malaya, Kuala Lumpur 50603, Malaysia
| |
Collapse
|
2
|
Hafeez J, Bilal M, Rasool N, Hafeez U, Adnan Ali Shah S, Imran S, Amiruddin Zakaria Z. Synthesis of Ruthenium complexes and their catalytic applications: A review. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
3
|
Wang Q, Xia Y, Chen Z, Wang Y, Cheng F, Qin L, Zheng Z. Hydrogen Production via Aqueous-Phase Reforming of Ethanol Catalyzed by Ruthenium Alkylidene Complexes. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00555] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Qian Wang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Yihao Xia
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Zhijian Chen
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Yifan Wang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Fanrui Cheng
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Lei Qin
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Zhiping Zheng
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
- Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| |
Collapse
|
4
|
Substituted N-heterocyclic carbene PEPPSI-type palladium complexes with different N-coordinated ligands: Involvement in the direct C H bond activation of heteroarenes derivatives with aryl bromide and their antimicrobial, anti-inflammatory and antioxidant activities. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120747] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
5
|
Cabeza JA, García-Álvarez P, Gómez-Gallego M, Sierra MA. Advances in the synthesis and reactivity of group 6 metal allenyls. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2022. [DOI: 10.1016/bs.adomc.2022.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
6
|
Morales-Morales D, Turcio-García LA, Valdes H, Hernandez-Ortega S, Canseco-Gonzalez D. Arylation of aldehydes catalyzed by fluorinated NHC-Rh(I) complexes. NEW J CHEM 2022. [DOI: 10.1039/d2nj02949a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and characterization of twelve Rh(I) complexes with fluorinated NHC ligands is described. Seven molecular structures of these complexes were unequivocally elucidated by single crystal X-ray diffraction techniques. In...
Collapse
|
7
|
Narayana BK, Keri RS, Hanumantharayudu ND, Budagumpi S. Metal‐Metal Interactions in Bi‐, Tri‐ and Multinuclear Fe, Ru and Os N‐Heterocyclic Carbene Complexes and their Catalytic Applications. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Brinda Kadur Narayana
- Centre for Nano and Material Sciences Jain University, Jain Global Campus, Kanakapura, Ramanagaram Bangalore 562 112 Karnataka India
| | - Rangappa S. Keri
- Centre for Nano and Material Sciences Jain University, Jain Global Campus, Kanakapura, Ramanagaram Bangalore 562 112 Karnataka India
| | | | - Srinivasa Budagumpi
- Centre for Nano and Material Sciences Jain University, Jain Global Campus, Kanakapura, Ramanagaram Bangalore 562 112 Karnataka India
| |
Collapse
|
8
|
Voloshkin VA, Tzouras NV, Nolan SP. Recent advances in the synthesis and derivatization of N-heterocyclic carbene metal complexes. Dalton Trans 2021; 50:12058-12068. [PMID: 34519733 DOI: 10.1039/d1dt01847g] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
N-heterocyclic carbene (NHC) metal complexes have gained an incredible amount of attention in the course of the last two decades and have become indispensable as an intricate part of a plethora of applications. The areas of their synthesis and derivatization are constantly evolving and bring new, more sustainable, cost-effective and simpler approaches to the design of existing and next generation catalysts and materials. This article provides an overview of the latest developments, focusing on those which have appeared during the last two years.
Collapse
Affiliation(s)
- Vladislav A Voloshkin
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000 Ghent, Belgium.
| | - Nikolaos V Tzouras
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000 Ghent, Belgium.
| | - Steven P Nolan
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000 Ghent, Belgium.
| |
Collapse
|
9
|
Wróblewska A, Lauriol G, Mlostoń G, Bantreil X, Lamaty F. Expedient synthesis of NOxy-Heterocyclic Carbenes (NOHC) ligands and metal complexes using mechanochemistry. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121914] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
10
|
Aharon S, Meyerstein D, Tzur E, Shamir D, Albo Y, Burg A. Advanced sol-gel process for efficient heterogeneous ring-closing metathesis. Sci Rep 2021; 11:12506. [PMID: 34131206 PMCID: PMC8206332 DOI: 10.1038/s41598-021-92043-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 05/28/2021] [Indexed: 11/09/2022] Open
Abstract
Olefin metathesis, a powerful synthetic method with numerous practical applications, can be improved by developing heterogeneous catalysts that can be recycled. In this study, a single-stage process for the entrapment of ruthenium-based catalysts was developed by the sol-gel process. System effectiveness was quantified by measuring the conversion of the ring-closing metathesis reaction of the substrate diethyl diallylmalonate and the leakage of the catalysts from the matrix. The results indicate that the nature of the precursor affects pore size and catalyst activity. Moreover, matrices prepared with tetraethoxysilane at an alkaline pH exhibit a better reaction rate than in the homogenous system under certain reaction conditions. To the best of our knowledge, this is the first study to present a one-step process that is simpler and faster than the methods reported in the literature for catalyst entrapment by the sol-gel process under standard conditions.
Collapse
Affiliation(s)
- Shiran Aharon
- Chemical Sciences Dept, Ariel University, Ariel, Israel
- Chemical Engineering Dept, Sami Shamoon College of Engineering, Beer Sheva, Ashdod, Israel
| | - Dan Meyerstein
- Chemical Sciences Dept, Ariel University, Ariel, Israel
- Chemistry Dept, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Eyal Tzur
- Chemical Engineering Dept, Sami Shamoon College of Engineering, Beer Sheva, Ashdod, Israel.
| | - Dror Shamir
- Nuclear Research Centre Negev, Beer-Sheva, Israel
| | - Yael Albo
- Chemical Engineering Dept, Ariel University, Ariel, Israel
| | - Ariela Burg
- Chemical Engineering Dept, Sami Shamoon College of Engineering, Beer Sheva, Ashdod, Israel.
| |
Collapse
|
11
|
Tobón P, Gómez S, Restrepo A, Núñez-Zarur F. Role of Substrate Substituents in Alkene Metathesis Mediated by a Ru Alkylidene Catalyst. Organometallics 2021. [DOI: 10.1021/acs.organomet.0c00482] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Paola Tobón
- Instituto de Química, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín 50010, Colombia
| | - Sara Gómez
- Scuola Normale Superiore, Classe di Scienze, Piazza dei Cavalieri 7, 56126 Pisa, Italy
| | - Albeiro Restrepo
- Instituto de Química, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín 50010, Colombia
| | - Francisco Núñez-Zarur
- Facultad de Ciencias Básicas, Universidad de Medellín, Carrera 87 No. 30-65, 050026 Medellín, Colombia
| |
Collapse
|
12
|
Yiğit M, Gök Y, Özeroğlu Çelikal Ö, Yiğit B. Ruthenium(II) Complexes with Chelating N-Heterocyclic Carbenes and a Ruthenate(II) Complex as Catalysts for the Anti-Markovnikov Hydroaminations of Styrene. HETEROCYCLES 2021. [DOI: 10.3987/com-21-14519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
13
|
Bauri S, Mallik A, Rit A. Naphthyl-Derived Orthometalated RuII-NHC Complexes: Effect of the NHC Donors and/or Substitution Pattern on Their Synthesis and Catalytic Activity. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00441] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Somnath Bauri
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Anirban Mallik
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Arnab Rit
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| |
Collapse
|
14
|
Rufino-Felipe E, Valdés H, Germán-Acacio JM, Reyes-Márquez V, Morales-Morales D. Fluorinated N-Heterocyclic carbene complexes. Applications in catalysis. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121364] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
15
|
Gök Y, Akkoç S, Çelikal ÖÖ, Özdemir İ, Günal S. In vitro antimicrobial studies of naphthalen-1-ylmethyl substituted silver N-heterocyclic carbene complexes. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.04.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
|
16
|
Cycloheptyl substituted N-heterocyclic carbene PEPPSI-type palladium complexes with different N-coordinated ligands: Involvement in Suzuki-Miyaura reaction. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.120906] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
17
|
Sultane PR, Ahumada G, Janssen‐Müller D, Bielawski CW. Cyclic (Aryl)(Amido)Carbenes: NHCs with Triplet‐like Reactivity. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910350] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Prakash R. Sultane
- Center for Multidimensional Carbon Materials (CMCM)Institute for Basic Science (IBS) Ulsan 44919 Republic of Korea
| | - Guillermo Ahumada
- Center for Multidimensional Carbon Materials (CMCM)Institute for Basic Science (IBS) Ulsan 44919 Republic of Korea
| | - Daniel Janssen‐Müller
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Münster 48149 Germany
| | - Christopher W. Bielawski
- Center for Multidimensional Carbon Materials (CMCM)Institute for Basic Science (IBS) Ulsan 44919 Republic of Korea
- Department Chemistry and Department of Energy EngineeringUlsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of Korea
| |
Collapse
|
18
|
Sultane PR, Ahumada G, Janssen‐Müller D, Bielawski CW. Cyclic (Aryl)(Amido)Carbenes: NHCs with Triplet‐like Reactivity. Angew Chem Int Ed Engl 2019; 58:16320-16325. [DOI: 10.1002/anie.201910350] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Indexed: 11/05/2022]
Affiliation(s)
- Prakash R. Sultane
- Center for Multidimensional Carbon Materials (CMCM) Institute for Basic Science (IBS) Ulsan 44919 Republic of Korea
| | - Guillermo Ahumada
- Center for Multidimensional Carbon Materials (CMCM) Institute for Basic Science (IBS) Ulsan 44919 Republic of Korea
| | - Daniel Janssen‐Müller
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Münster 48149 Germany
| | - Christopher W. Bielawski
- Center for Multidimensional Carbon Materials (CMCM) Institute for Basic Science (IBS) Ulsan 44919 Republic of Korea
- Department Chemistry and Department of Energy Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of Korea
| |
Collapse
|
19
|
Yadav D, Singh D, Sarkar D, Sinhababu S, Sharma MK, Nagendran S. Reactivity studies on aminotroponiminatogermylene stabilized ruthenium(II) complexes. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.02.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
20
|
Beillard A, Bantreil X, Métro TX, Martinez J, Lamaty F. Alternative Technologies That Facilitate Access to Discrete Metal Complexes. Chem Rev 2019; 119:7529-7609. [PMID: 31059243 DOI: 10.1021/acs.chemrev.8b00479] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Organometallic complexes: these two words jump to the mind of the chemist and are directly associated with their utility in catalysis or as a pharmaceutical. Nevertheless, to be able to use them, it is necessary to synthesize them, and it is not always a small matter. Typically, synthesis is via solution chemistry, using a round-bottom flask and a magnetic or mechanical stirrer. This review takes stock of alternative technologies currently available in laboratories that facilitate the synthesis of such complexes. We highlight five such technologies: mechanochemistry, also known as solvent-free chemistry, uses a mortar and pestle or a ball mill; microwave activation can drastically reduce reaction times; ultrasonic activation promotes chemical reactions because of cavitation phenomena; photochemistry, which uses light radiation to initiate reactions; and continuous flow chemistry, which is increasingly used to simplify scale-up. While facilitating the synthesis of organometallic compounds, these enabling technologies also allow access to compounds that cannot be obtained in any other way. This shows how the paradigm is changing and evolving toward new technologies, without necessarily abandoning the round-bottom flask. A bright future is ahead of the organometallic chemist, thanks to these novel technologies.
Collapse
Affiliation(s)
- Audrey Beillard
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier cedex 5, France
| | - Xavier Bantreil
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier cedex 5, France
| | - Thomas-Xavier Métro
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier cedex 5, France
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier cedex 5, France
| | - Frédéric Lamaty
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier cedex 5, France
| |
Collapse
|
21
|
Touj N, Chakchouk-Mtibaa A, Mansour L, Harrath A, Al-Tamimi J, Mellouli L, Özdemir I, Yasar S, Hamdi N. Synthesis, spectroscopic properties and biological activity of new Cu(I) N-Heterocyclic carbene complexes. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.12.093] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
22
|
Olefin-tethered organoruthenium carbene complexes: Synthesis, X-ray structure and catalytic insights on hydrogenation of esters. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.10.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
23
|
Khajehzadeh M, Moghadam M, Jamehbozorgi S. Synthesis and characterization of a new poly(N–heterocyclic carbene Cu complex) immobilized on nano–silica, (CuII–NHCs)n@nSiO2, and its application as an efficient and reusable catalyst in the synthesis of benzimidazoles, benzothiazoles, 1,2,3–triazoles, bis–triazoles and sonogashira–hagihara reactions. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.09.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
24
|
Subramaniyan V, Dutta B, Govindaraj A, Mani G. Facile synthesis of Pd(ii) and Ni(ii) pincer carbene complexes by the double C–H bond activation of a new hexahydropyrimidine-based bis(phosphine): catalysis of C–N couplings. Dalton Trans 2019; 48:7203-7210. [DOI: 10.1039/c8dt03413c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new hexahydropyrimidine-based NHC proligand undergoes facile double C–H bond activation to give Pd(ii) and Ni(ii) NHC pincer cationic complexes. The Pd complex catalyzes C–N cross couplings very efficiently.
Collapse
Affiliation(s)
| | - Bidisa Dutta
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur
- India 721 302
| | - Anbarasu Govindaraj
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur
- India 721 302
| | - Ganesan Mani
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur
- India 721 302
| |
Collapse
|
25
|
Onar G, Karataş MO, Balcıoğlu S, Tok TT, Gürses C, Kılıç-Cıkla I, Özdemir N, Ateş B, Alıcı B. Benzotriazole functionalized N-heterocyclic carbene–silver(I) complexes: Synthesis, cytotoxicity, antimicrobial, DNA binding, and molecular docking studies. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.06.052] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
26
|
Synthesis, characterisation and cytotoxic properties of N -heterocyclic carbene silver(I) complexes. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.04.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
27
|
Borase PN, Thale PB, Shankarling GS. Ru(Cl)-Salen Complex: Solvent Selective Homogeneous Catalyst for One-Pot Synthesis of Nitriles and Amides. ChemistrySelect 2018. [DOI: 10.1002/slct.201800121] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pravin N. Borase
- Department of Dyestuff Technology; Institute of Chemical Technology, Matunga; Mumbai 400 0019 India
| | - Pranila B. Thale
- Department of Dyestuff Technology; Institute of Chemical Technology, Matunga; Mumbai 400 0019 India
| | - Ganapati. S. Shankarling
- Department of Dyestuff Technology; Institute of Chemical Technology, Matunga; Mumbai 400 0019 India
| |
Collapse
|
28
|
Khajehzadeh M, Moghadam M. A new poly(N–heterocyclic carbene Pd complex) immobilized on nano silica: An efficient and reusable catalyst for Suzuki–Miyaura, Sonogashira and Heck–Mizoroki C‒C coupling reactions. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.03.030] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
29
|
Touj N, Yaşar S, Özdemir N, Hamdi N, Özdemir İ. Sonogashira cross-coupling reaction catalysed by mixed NHC-Pd-PPh 3 complexes under copper free conditions. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.01.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
30
|
Boubakri L, Mansour L, Harrath AH, Özdemir I, Yaşar S, Hamdi N. N-Heterocyclic carbene-Pd(II)-PPh3 complexes as a new highly efficient catalyst system for the Sonogashira cross-coupling reaction: Synthesis, characterization and biological activities. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1430791] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- L. Boubakri
- Research Laboratory of Environmental Sciences and Technologies (LR16ES09), Higher Institute of Environmental Sciences and Technology, University of Carthage, Hammam-Lif, Tunisia
| | - L. Mansour
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - A. H. Harrath
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - I. Özdemir
- Faculty of Science and Art, Department of Chemistry, İnönü University, Malatya, Turkey
| | - S. Yaşar
- Faculty of Science and Art, Department of Chemistry, İnönü University, Malatya, Turkey
| | - N. Hamdi
- Research Laboratory of Environmental Sciences and Technologies (LR16ES09), Higher Institute of Environmental Sciences and Technology, University of Carthage, Hammam-Lif, Tunisia
- Chemistry Department, College of Science and Arts, Qassim University, Al-Rass, Kingdom of Saudi Arabia
| |
Collapse
|
31
|
Dehimat ZI, Yaşar S, Tebbani D, Özdemir İ. Sonogashira cross-coupling reaction catalyzed by N-heterocyclic carbene-Pd(II)-PPh3 complexes under copper free and aerobic conditions. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.09.048] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
32
|
Touj N, Al-Ayed AS, Sauthier M, Mansour L, Harrath AH, Al-Tamimi J, Özdemir I, Yaşar S, Hamdi N. Efficient in situ N-heterocyclic carbene palladium(ii) generated from Pd(OAc)2 catalysts for carbonylative Suzuki coupling reactions of arylboronic acids with 2-bromopyridine under inert conditions leading to unsymmetrical arylpyridine ketones: synthesis, characterization and cytotoxic activities. RSC Adv 2018; 8:40000-40015. [PMID: 35558245 PMCID: PMC9091359 DOI: 10.1039/c8ra08897g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 12/21/2018] [Accepted: 11/07/2018] [Indexed: 11/21/2022] Open
Abstract
N,N-Substituted benzimidazole salts were successfully synthesized and characterized by 1H-NMR, 13C {1H} NMR and IR techniques, which support the proposed structures. Catalysts generated in situ were efficiently used for the carbonylative cross-coupling reaction of 2 bromopyridine with various boronic acids. The reaction was carried out in THF at 110 °C in the presence of K2CO3 under inert conditions and yields unsymmetrical arylpyridine ketones. All N,N-substituted benzimidazole salts 2a–i and 4a–i studied in this work were screened for their cytotoxic activities against human cancer cell lines such us MDA-MB-231, MCF-7 and T47D. The N,N-substituted benzimidazoles 2e and 2f exhibited the most cytotoxic effect with promising cytotoxic activity with IC50 values of 4.45 μg mL−1 against MDA-MB-231 and 4.85 μg mL−1 against MCF7 respectively. The in situ prepared four component system Pd(OAc)2, 1,3-dialkylbenzimidazolium halides 2a–i and 4a–i, K2CO3 under CO atmosphere catalyses carbonylative cross-coupling reaction of 2-bromopyridine with various boronic acids to yield unsymmetrical arylpyridine ketones.![]()
Collapse
Affiliation(s)
- Nedra Touj
- Research Laboratory of Environmental Sciences and Technologies (LR16ES09)
- Higher Institute of Environmental Sciences and Technology
- University of Carthage
- Tunisia
| | - Abdullah S. Al-Ayed
- Chemistry Department
- College of Science and Arts
- Qassim University
- Al-Rass
- Kingdom of Saudi Arabia
| | - Mathieu Sauthier
- Ecole Nationale Supérieure de Chimie de Lille
- Unité de Catalyse et Chimie du Solide
- UMR CNRS 8181
- USTL
- France
| | - Lamjed Mansour
- Chemistry Department
- College of Science and Arts
- Qassim University
- Al-Rass
- Kingdom of Saudi Arabia
| | - Abdel Halim Harrath
- Chemistry Department
- College of Science and Arts
- Qassim University
- Al-Rass
- Kingdom of Saudi Arabia
| | - Jamil Al-Tamimi
- Chemistry Department
- College of Science and Arts
- Qassim University
- Al-Rass
- Kingdom of Saudi Arabia
| | - Ismail Özdemir
- İnönü University
- Faculty of Science and Art
- Department of Chemistry
- Malatya
- Turkey
| | - Sedat Yaşar
- İnönü University
- Faculty of Science and Art
- Department of Chemistry
- Malatya
- Turkey
| | - Naceur Hamdi
- Research Laboratory of Environmental Sciences and Technologies (LR16ES09)
- Higher Institute of Environmental Sciences and Technology
- University of Carthage
- Tunisia
- Chemistry Department
| |
Collapse
|
33
|
Mukherjee A, Hrovat DA, Richmond MG, Bhattacharya S. A new diphosphine-carbonyl complex of ruthenium: an efficient precursor for C–C and C–N bond coupling catalysis. Dalton Trans 2018; 47:10264-10272. [DOI: 10.1039/c8dt01085d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reaction of 1,2-bis(diphenylphosphino)benzene (dppbz) with [{Ru(CO)2Cl2}n] affords [Ru(dppbz)(CO)2Cl2], which serves as an excellent pre-catalyst for Suzuki-type C–C coupling and Buchwald-type C–N coupling reactions.
Collapse
Affiliation(s)
- Aparajita Mukherjee
- Department of Chemistry
- Inorganic Chemistry Section
- Jadavpur University
- Kolkata 700 032
- India
| | - David A. Hrovat
- Center for Advanced Scientific Computing and Modeling
- University of North Texas
- Denton
- USA
- Department of Chemistry
| | | | - Samaresh Bhattacharya
- Department of Chemistry
- Inorganic Chemistry Section
- Jadavpur University
- Kolkata 700 032
- India
| |
Collapse
|
34
|
Zargaran P, Wurm T, Zahner D, Schießl J, Rudolph M, Rominger F, Hashmi ASK. A Structure-Based Activity Study of Highly Active Unsymmetrically Substituted NHC Gold(I) Catalysts. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701080] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Poorya Zargaran
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Thomas Wurm
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - David Zahner
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Jasmin Schießl
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Chemistry Department, Faculty of Science; King Abdulaziz University; Jeddah 21589 Saudi Arabia
| |
Collapse
|
35
|
Shih WC, Chiang YT, Wang Q, Wu MC, Yap GPA, Zhao L, Ong TG. Invisible Chelating Effect Exhibited between Carbodicarbene and Phosphine through π–π Interaction and Implication in the Cross-Coupling Reaction. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00692] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Wei-Chih Shih
- Institute
of Chemistry, Academia Sinica, Nangang, Taipei, Taiwan, Republic of China
| | - Yun-Ting Chiang
- Institute
of Chemistry, Academia Sinica, Nangang, Taipei, Taiwan, Republic of China
- The
Department of Applied Chemistry, National Chiao Tung University, Hsin-chu, Taiwan, Republic of China
| | - Qing Wang
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, People’s Republic of China
| | - Ming-Chun Wu
- Institute
of Chemistry, Academia Sinica, Nangang, Taipei, Taiwan, Republic of China
| | - Glenn P. A. Yap
- The
Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Lili Zhao
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, People’s Republic of China
| | - Tiow-Gan Ong
- Institute
of Chemistry, Academia Sinica, Nangang, Taipei, Taiwan, Republic of China
- The
Department of Applied Chemistry, National Chiao Tung University, Hsin-chu, Taiwan, Republic of China
| |
Collapse
|
36
|
Synthesis of sterically hindered N -benzyladamantyl substituted benzimidazol-2-ylidene palladium complexes and investigation of their catalytic activity in aqueous medium. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.08.037] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
37
|
Yaşar Ş, Köprülü TK, Tekin Ş, Yaşar S. Sulfonated
N
‐heterocyclic carbine‐silver (I) complexes: Synthesis, characterisation and biological evaluation. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.4016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Şeyma Yaşar
- Faculty of Medicine, Department of Biostatistics and Medical InformaticsInönü University 44280 Malatya Turkey
| | - Tuğba Kul Köprülü
- Central Research Laboratory, Deparment of Molecular Biology and GeneticsGaziosmanpaşa University 60100 Tokat Turkey
| | - Şaban Tekin
- Faculty of Medicine, Department of Biostatistics and Medical InformaticsInönü University 44280 Malatya Turkey
| | - Sedat Yaşar
- Catalysis, Research and Applied Center, Department of ChemistryInönü University 44280 Malatya Turkey
| |
Collapse
|
38
|
César V, Zhang Y, Kośnik W, Zieliński A, Rajkiewicz AA, Ruamps M, Bastin S, Lugan N, Lavigne G, Grela K. Ruthenium Catalysts Supported by Amino-Substituted N-Heterocyclic Carbene Ligands for Olefin Metathesis of Challenging Substrates. Chemistry 2017; 23:1950-1955. [PMID: 27914097 DOI: 10.1002/chem.201604934] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Indexed: 11/06/2022]
Abstract
N-Heterocyclic carbene (NHC) ligands IMesNMe2 and IMes(NMe2)2 derived from the well-known IMes ligand by substituting the carbenic heterocycle with one and two dimethylamino groups, respectively, were employed for the synthesis of second-generation Grubbs- and Grubbs-Hoveyda-type ruthenium metathesis precatalysts. Whereas the stability of the complexes was found to depend on the degree of dimethylamino-substitution and on the type of complex, the backbone-substitution was shown to have a positive impact on their catalytic activity in ring-closing metathesis, with a more pronounced effect in the second-generation Grubbs-type series. The new complexes were successfully implemented in a number of challenging olefin metathesis reactions leading to the formation of tetra-substituted C=C double bonds and/or functionalized compounds.
Collapse
Affiliation(s)
- Vincent César
- LCC-CNRS, Université de Toulouse, INPT, UPS, Toulouse, France), Fax: (+)33 (0) 5 61 55 30 03
| | - Yin Zhang
- LCC-CNRS, Université de Toulouse, INPT, UPS, Toulouse, France), Fax: (+)33 (0) 5 61 55 30 03
| | - Wioletta Kośnik
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Zwirki i Wigury 101, 02-089, Warsaw, Poland
| | - Adam Zieliński
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Zwirki i Wigury 101, 02-089, Warsaw, Poland
| | - Adam A Rajkiewicz
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Zwirki i Wigury 101, 02-089, Warsaw, Poland
| | - Mirko Ruamps
- LCC-CNRS, Université de Toulouse, INPT, UPS, Toulouse, France), Fax: (+)33 (0) 5 61 55 30 03
| | - Stéphanie Bastin
- LCC-CNRS, Université de Toulouse, INPT, UPS, Toulouse, France), Fax: (+)33 (0) 5 61 55 30 03
| | - Noël Lugan
- LCC-CNRS, Université de Toulouse, INPT, UPS, Toulouse, France), Fax: (+)33 (0) 5 61 55 30 03
| | - Guy Lavigne
- LCC-CNRS, Université de Toulouse, INPT, UPS, Toulouse, France), Fax: (+)33 (0) 5 61 55 30 03
| | - Karol Grela
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Zwirki i Wigury 101, 02-089, Warsaw, Poland
| |
Collapse
|
39
|
Ventura-Espinosa D, Marzá-Beltrán A, Mata JA. Catalytic Hydrogen Production by Ruthenium Complexes from the Conversion of Primary Amines to Nitriles: Potential Application as a Liquid Organic Hydrogen Carrier. Chemistry 2016; 22:17758-17766. [DOI: 10.1002/chem.201603423] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Indexed: 01/16/2023]
Affiliation(s)
- David Ventura-Espinosa
- Institute of Advanced Materials (INAM); Universitat Jaume I; Avda. Sos Baynat s/n 12006 Castellón Spain
| | - Aida Marzá-Beltrán
- Institute of Advanced Materials (INAM); Universitat Jaume I; Avda. Sos Baynat s/n 12006 Castellón Spain
| | - Jose A. Mata
- Institute of Advanced Materials (INAM); Universitat Jaume I; Avda. Sos Baynat s/n 12006 Castellón Spain
| |
Collapse
|
40
|
Grychowska K, Kubica B, Drop M, Colacino E, Bantreil X, Pawłowski M, Martinez J, Subra G, Zajdel P, Lamaty F. Application of the ring-closing metathesis to the formation of 2-aryl-1H-pyrrole-3-carboxylates as building blocks for biologically active compounds. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.09.059] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
41
|
Sierra MA, Merinero AD, Giner EA, Gómez-Gallego M, Ramírez de Arellano C. An Entry to Mixed NHC-Fischer Carbene Complexes and Zwitterionic Group 6 Metal Alkenyls. Chemistry 2016; 22:13521-31. [DOI: 10.1002/chem.201601735] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Miguel A. Sierra
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense; 28040 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
| | - Alba D. Merinero
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense; 28040 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
| | - Elena A. Giner
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense; 28040 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
| | - Mar Gómez-Gallego
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense; 28040 Madrid Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
| | - Carmen Ramírez de Arellano
- Departamento de Química Orgánica; Universidad de Valencia; 46100 Valencia Spain
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
| |
Collapse
|
42
|
Qi X, Liu S, Lan Y. Computational Studies on an Aminomethylation Precursor: (Xantphos)Pd(CH2NBn2)+. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00234] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaotian Qi
- School of Chemistry and Chemical
Engineering, Chongqing University, Chongqing 400030, People’s Republic of China
| | - Song Liu
- School of Chemistry and Chemical
Engineering, Chongqing University, Chongqing 400030, People’s Republic of China
| | - Yu Lan
- School of Chemistry and Chemical
Engineering, Chongqing University, Chongqing 400030, People’s Republic of China
| |
Collapse
|
43
|
Martin D, Marx VM, Grubbs RH, Bertrand G. A Ruthenium Catalyst for Olefin Metathesis Featuring an Anti-Bredt N-Heterocyclic Carbene Ligand. Adv Synth Catal 2016; 358:965-969. [PMID: 27594819 PMCID: PMC5007067 DOI: 10.1002/adsc.201501140] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A ruthenium complex bearing an "anti-Bredt" N-heterocyclic carbene was synthesized, characterized and evaluated as a catalyst for olefin metathesis. Good conversions were observed at room temperature for the formation of di- and tri-substituted olefins by ring-closing metathesis. It also allowed for the ring-opening metathesis polymerization of cyclooctadiene, as well as for the cross-metathesis of cis-1,4-diacetoxy-2-butene with allyl-benzene, with enhanced Z/E kinetic selectivity over classical NHC-based catalysts.
Collapse
Affiliation(s)
- David Martin
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0343, USA
| | - Vanessa M. Marx
- Department of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Robert H. Grubbs
- Department of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Guy Bertrand
- UCSD-CNRS Joint Research Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0343, USA
| |
Collapse
|
44
|
Vaughan J, Carter DJ, Rohl AL, Ogden MI, Skelton BW, Simpson PV, Brown DH. Silver(I), gold(I) and palladium(II) complexes of a NHC-pincer ligand with an aminotriazine core: a comparison with pyridyl analogues. Dalton Trans 2016; 45:1484-95. [PMID: 26672744 DOI: 10.1039/c5dt04213e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Dinuclear silver, di- and tetra-nuclear gold, and mononuclear palladium complexes with chelating C,N,C diethylaminotriazinyl-bridged bis(NHC) pincer ligands were prepared and characterised. The silver and gold complexes exist in a twisted, helical conformation in both the solution- and the solid state. In contrast, an analogous dinuclear gold complex with pyridyl-bridged NHCs exists in a linear conformation. Computational studies have been performed to rationalise the formation of twisted/helical vs. linear forms.
Collapse
Affiliation(s)
- Jamila Vaughan
- Department of Chemistry, Curtin University, GPO Box U1987, Perth WA 6845, Australia.
| | - Damien J Carter
- Science & Maths Education Centre, Nanochemistry Research Institute & Department of Chemistry, Curtin University, GPO Box U1987, Perth WA 6845, Australia
| | - Andrew L Rohl
- Curtin Institute for Computation, Nanochemistry Research Institute & Department of Chemistry, Curtin University, GPO Box U1987, Perth WA 6845, Australia
| | - Mark I Ogden
- Department of Chemistry, Curtin University, GPO Box U1987, Perth WA 6845, Australia.
| | - Brian W Skelton
- Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
| | - Peter V Simpson
- Department of Chemistry, Curtin University, GPO Box U1987, Perth WA 6845, Australia.
| | - David H Brown
- Department of Chemistry, Curtin University, GPO Box U1987, Perth WA 6845, Australia.
| |
Collapse
|
45
|
Caramori GF, Ortolan AO, Parreira RL, da Silva EH. Ruthenium nitrosyl complexes containing pyridine-functionalized carbenes – A theoretical insight. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.08.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
46
|
Al-Hashimi M, Tuba R, Bazzi HS, Grubbs RH. Synthesis of Polypentenamer and Poly(Vinyl Alcohol) with a Phase-Separable Polyisobutylene-Supported Second-Generation Hoveyda-Grubbs Catalyst. ChemCatChem 2015. [DOI: 10.1002/cctc.201500930] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mohammed Al-Hashimi
- Department of Chemistry; Texas A&M University at Qatar; P.O. Box 23874 Doha Qatar
| | - Robert Tuba
- Department of Chemistry; Texas A&M University at Qatar; P.O. Box 23874 Doha Qatar
| | - Hassan S. Bazzi
- Department of Chemistry; Texas A&M University at Qatar; P.O. Box 23874 Doha Qatar
| | - Robert H. Grubbs
- Department of Chemistry; Texas A&M University at Qatar; P.O. Box 23874 Doha Qatar
- The Arnold and Mabel Beckman Laboratories of Chemical Synthesis, Division of Chemistry and Chemical Engineering; California Institute of Technology; Pasadena California 91125 USA
| |
Collapse
|
47
|
Mechanism of the sequential activation of two C–H bonds of a NHC N-methyl group on a triruthenium carbonyl cluster. Theor Chem Acc 2015. [DOI: 10.1007/s00214-015-1729-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
48
|
Li M, Song H, Wang B. Synthesis and Structures of N-Heterocyclic Carbene-Sulfonate Ruthenium Complexes and Their Applications in the Ring-Opening Metathesis Polymerization of Norbornene. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500499] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
49
|
Lothschütz C, Wurm T, Zeiler A, Freiherr V Falkenhausen A, Rudolph M, Rominger F, Hashmi ASK. Facile Synthesis of Functionalized Carbene Metal Complexes from Coordinated Isonitriles. Chem Asian J 2015; 11:342-6. [PMID: 26033484 DOI: 10.1002/asia.201500353] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2015] [Revised: 05/15/2015] [Indexed: 11/11/2022]
Abstract
The scope and limitations of the isonitrile-based NHC template synthesis were investigated with a series of precursors containing a nucleophilic amine in combination with tethered electrophiles. In the case of alkynes and phosphonic esters as electrophiles no ring closure was observed and new functionalized NAC gold complexes were obtained. By the use of unsaturated esters and phosphonic esters as Michael acceptors in the amine precursors, ester-modified gold and palladium NHC complexes were accessible in high efficiency.
Collapse
Affiliation(s)
- Christian Lothschütz
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany), Fax: (+49) 06221-54-4205
| | - Thomas Wurm
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany), Fax: (+49) 06221-54-4205
| | - Anna Zeiler
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany), Fax: (+49) 06221-54-4205
| | - Alexander Freiherr V Falkenhausen
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany), Fax: (+49) 06221-54-4205
| | - Matthias Rudolph
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany), Fax: (+49) 06221-54-4205
| | - Frank Rominger
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany), Fax: (+49) 06221-54-4205
| | - A Stephen K Hashmi
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany), Fax: (+49) 06221-54-4205.
| |
Collapse
|
50
|
Juarez RA, Lee WT, Smith JM, Wang H. Computational evaluation of tris(carbene)borate donor properties in {NiNO}(10) complexes. Dalton Trans 2015; 43:14689-95. [PMID: 25142086 DOI: 10.1039/c4dt01426j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Electronic structure calculations are performed to characterise the structures, energies, and spectroscopic data for a series of four-coordinate tris(carbene)borate {NiNO}(10) complexes. There is excellent agreement between the computational and experimental results for known complexes, allowing for structure-function relationships to be delineated. Calculations that provide insights into the synthetic accessibility of nickel(iv) nitrides by oxygen atom abstraction from these complexes are also reported.
Collapse
Affiliation(s)
- Ruth A Juarez
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM 88003, USA.
| | | | | | | |
Collapse
|