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Behera RR, Saha R, Kumar AA, Sethi S, Jana NC, Bagh B. Hydrosilylation of Terminal Alkynes Catalyzed by an Air-Stable Manganese-NHC Complex. J Org Chem 2023. [PMID: 37317486 DOI: 10.1021/acs.joc.3c00127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In recent years, catalysis with base metal manganese has received a significant amount of interest. Catalysis with manganese complexes having N-heterocyclic carbenes (NHCs) is relatively underdeveloped in comparison to the extensively investigated manganese catalysts possessing pincer ligands (particularly phosphine-based ligands). Herein, we describe the synthesis of two imidazolium salts decorated with picolyl arms (L1 and L2) as NHC precursors. Facile coordination of L1 and L2 with MnBr(CO)5 in the presence of a base resulted in the formation manganese(I)-NHC complexes (1 and 2) as an air-stable solid in good isolated yield. Single-crystal X-ray analysis revealed the structure of the cationic complexes [Mn(CO)3(NHC)][PF6] with tridentate N,C,N binding of the NHC ligand in a facile fashion. Along with a few known manganese(I) complexes, these Mn(I)-NHC complexes 1 and 2 were tested for the hydrosilylation of terminal alkynes. Complex 1 was proved to be an effective catalyst for the hydrosilylation of terminal alkynes with good selectivity toward the less thermodynamically stable β-(Z)-vinylsilanes. This method provided good regioselectivity (anti-Markovnikov addition) and stereoselectivity (β-(Z)-product). Experimental evidence suggested that the present hydrosilylation pathway involved an organometallic mechanism with manganese(I)-silyl species as a possible reactive intermediate.
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Affiliation(s)
- Rakesh R Behera
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Ratnakar Saha
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Alamsaty Ashis Kumar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Subrat Sethi
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Narayan Ch Jana
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
| | - Bidraha Bagh
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Bhubaneswar, Odisha 752050, India
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2
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Császár Z, Kovács R, Fonyó M, Simon J, Bényei A, Lendvay G, Bakos J, Farkas G. Testing the role of the backbone length using bidentate and tridentate ligands in manganese-catalyzed asymmetric hydrogenation. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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3
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Mourão H, Gomes CSB, Realista S, Royo B. Visible Light‐Induced Catalytic Hydrosilylation of Ketones Mediated by Manganese NHC Complexes. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Henrique Mourão
- ITQB NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República Oeiras Portugal
| | - Clara S. B. Gomes
- LAQV‐REQUIMTE and UCIBIO‐Applied Molecular Biosciences Unit, Department of Chemistry, Campus de Caparica NOVA School of Science and Technology, NOVA University of Lisbon Caparica Portugal
- Associated Laboratory i4HB‐Institute for Health and Bioeconomy School of Science and Technology, NOVA University of Lisbon Caparica Portugal
| | - Sara Realista
- ITQB NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República Oeiras Portugal
- Centro de Química Estrutural Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Ed. C8 Lisboa Portugal
| | - Beatriz Royo
- ITQB NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República Oeiras Portugal
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4
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Gutiérrez-Peña CL, Poyatos M, Peris E. A redox-switchable catalyst with an ‘unplugged’ redox tag. Chem Commun (Camb) 2022; 58:10564-10567. [DOI: 10.1039/d2cc02497g] [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
A series of bis-(propyl-imidazoliylidene)-napthalenediimide (NDI) complexes of rhodium and iridium showed effective redox-switching properties, despite the electronic disconnection between the NDI moiety and the metal centres.
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Affiliation(s)
- Cristian L. Gutiérrez-Peña
- Institute of Advanced Materials (INAM), Centro de Innovación en Química Avanzada (ORFEO-CINQA). Universitat Jaume I, Av. Vicente Sos Baynat s/n, 12071-Castellón, Spain
| | - Macarena Poyatos
- Institute of Advanced Materials (INAM), Centro de Innovación en Química Avanzada (ORFEO-CINQA). Universitat Jaume I, Av. Vicente Sos Baynat s/n, 12071-Castellón, Spain
| | - Eduardo Peris
- Institute of Advanced Materials (INAM), Centro de Innovación en Química Avanzada (ORFEO-CINQA). Universitat Jaume I, Av. Vicente Sos Baynat s/n, 12071-Castellón, Spain
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5
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Panyam PKR, Atwi B, Ziegler F, Frey W, Nowakowski M, Bauer M, Buchmeiser MR. Rh(I)/(III)-N-Heterocyclic Carbene Complexes: Effect of Steric Confinement Upon Immobilization on Regio- and Stereoselectivity in the Hydrosilylation of Alkynes. Chemistry 2021; 27:17220-17229. [PMID: 34672398 DOI: 10.1002/chem.202103099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Indexed: 12/14/2022]
Abstract
Rh(I) NHC and Rh(III) Cp* NHC complexes (Cp*=pentamethylcyclopentadienyl, NHC=N-heterocyclic carbene=pyrid-2-ylimidazol-2-ylidene (Py-Im), thiophen-2-ylimidazol-2-ylidene) are presented. Selected catalysts were selectively immobilized inside the mesopores of SBA-15 with average pore diameters of 5.0 and 6.2 nm. Together with their homogenous progenitors, the immobilized catalysts were used in the hydrosilylation of terminal alkynes. For aromatic alkynes, both the neutral and cationic Rh(I) complexes showed excellent reactivity with exclusive formation of the β(E)-isomer. For aliphatic alkynes, however, selectivity of the Rh(I) complexes was low. By contrast, the neutral and cationic Rh(III) Cp* NHC complexes proved to be highly regio- and stereoselective catalysts, allowing for the formation of the thermodynamically less stable β-(Z)-vinylsilane isomers at room temperature. Notably, the SBA-15 immobilized Rh(I) catalysts, in which the pore walls provide an additional confinement, showed excellent β-(Z)-selectivity in the hydrosilylation of aliphatic alkynes, too. Also, in the case of 4-aminophenylacetylene, selective formation of the β(Z)-isomer was observed with a neutral SBA-15 supported Rh(III) Cp* NHC complex but not with its homogenous counterpart. These are the first examples of high β(Z)-selectivity in the hydrosilylation of alkynes by confinement generated upon immobilization inside mesoporous silica.
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Affiliation(s)
- Pradeep K R Panyam
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Boshra Atwi
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Felix Ziegler
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Wolfgang Frey
- Institute of Organic Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Michal Nowakowski
- Chemistry Department, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
| | - Matthias Bauer
- Chemistry Department, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
| | - Michael R Buchmeiser
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany.,German Institutes of Textile and Fiber Research, Körschtalstr. 26, 73770, Denkendorf, Germany
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6
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Ruiz‐Zambrana C, Gutiérrez‐Blanco A, Gonell S, Poyatos M, Peris E. Redox‐Switchable Cycloisomerization of Alkynoic Acids with Napthalenediimide‐Derived N‐Heterocyclic Carbene Complexes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107973] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- César Ruiz‐Zambrana
- Institute of Advanced Materials (INAM). Universitat Jaume I. Av. Vicente Sos Baynat s/n. 12071 Castellón Spain
| | - Ana Gutiérrez‐Blanco
- Institute of Advanced Materials (INAM). Universitat Jaume I. Av. Vicente Sos Baynat s/n. 12071 Castellón Spain
| | - Sergio Gonell
- Institute of Advanced Materials (INAM). Universitat Jaume I. Av. Vicente Sos Baynat s/n. 12071 Castellón Spain
| | - Macarena Poyatos
- Institute of Advanced Materials (INAM). Universitat Jaume I. Av. Vicente Sos Baynat s/n. 12071 Castellón Spain
| | - Eduardo Peris
- Institute of Advanced Materials (INAM). Universitat Jaume I. Av. Vicente Sos Baynat s/n. 12071 Castellón Spain
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Karataş MO, Alıcı B, Passarelli V, Özdemir I, Pérez-Torrente JJ, Castarlenas R. Iridium(i) complexes bearing hemilabile coumarin-functionalised N-heterocyclic carbene ligands with application as alkyne hydrosilylation catalysts. Dalton Trans 2021; 50:11206-11215. [PMID: 34338264 DOI: 10.1039/d1dt01946e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A set of iridium(i) complexes of formula IrCl(κC,η2-IRCouR')(cod) or IrCl(κC, η2-BzIRCouR')(cod) (cod = 1,5-cyclooctadiene; Cou = coumarin; I = imidazolin-2-carbene; BzI = benzimidazolin-2-carbene) have beeen prepared from the corresponding azolium salt and [Ir(μ-OMe)(cod)]2 in THF at room temperature. The crystalline structures of 4b and 5b show a distorted trigonal bipyramidal configuration in the solid state with a coordinated coumarin moiety. In contrast, an equilibrium between this pentacoordinated structure and the related square planar isomer is observed in solution as a consequence of the hemilability of the pyrone ring. Characterization of both species by NMR was achieved at the low and high temperature limits, respectively. In addition, the thermodynamic parameters of the equilibrium, ΔHR and ΔSR, were obtained by VT 1H NMR spectroscopy and fall in the range 22-33 kJ mol-1 and 72-113 J mol-1 K-1, respectively. Carbonylation of IrCl(κC,η2-BzITolCou7,8-Me2)(cod) resulted in the formation of a bis-CO derivative showing no hemilabile behaviour. The newly synthesised complexes efficiently catalyze the hydrosilylation of alkynes at room temperature with a preference for the β-(Z) vinylsilane isomer.
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Affiliation(s)
- Mert Olgun Karataş
- Departamento de Química Inorgánica-Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, C/Pedro Cerbuna 12, CP. 50009, Zaragoza, Spain.
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8
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Abeynayake NS, Zamora-Moreno J, Gorla S, Donnadieu B, Muñoz-Hernández MA, Montiel-Palma V. 14-Electron Rh and Ir silylphosphine complexes and their catalytic activity in alkene functionalization with hydrosilanes. Dalton Trans 2021; 50:11783-11792. [PMID: 34368827 DOI: 10.1039/d1dt00677k] [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
Herein we report an experimental and computational study of a family of four coordinated 14-electron complexes of Rh(iii) devoid of agostic interactions. The complexes [X-Rh(κ3(P,Si,Si)PhP(o-C6H4CH2SiiPr2)2], where X = Cl (Rh-1), Br (Rh-2), I (Rh-3), OTf (Rh-4), Cl·GaCl3 (Rh-5); derive from a bis(silyl)-o-tolylphosphine with isopropyl substituents on the Si atoms. All five complexes display a sawhorse geometry around Rh and exhibit similar spectroscopic and structural properties. The catalytic activity of these complexes and [Cl-Ir(κ3(P,Si,Si)PhP(o-C6H4CH2SiiPr2)2], Ir-1, in styrene and aliphatic alkene functionalizations with hydrosilanes is disclosed. We show that Rh-1 catalyzes effectively the dehydrogenative silylation of styrene with Et3SiH in toluene while it leads to hydrosilylation products in acetonitrile. Rh-1 is an excellent catalyst in the sequential isomerization/hydrosilylation of terminal and remote aliphatic alkenes with Et3SiH including hexene isomers, leading efficiently and selectively to the terminal anti-Markonikov hydrosilylation product in all cases. With aliphatic alkenes, no hydrogenation products are observed. Conversely, catalysis of the same hexene isomers by Ir-1 renders allyl silanes, the tandem isomerization/dehydrogenative silylation products. A mechanistic proposal is made to explain the catalysis with these M(iii) complexes.
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Affiliation(s)
- Niroshani S Abeynayake
- Department of Chemistry, Mississippi State University, Box 9573, Mississippi State, Mississippi 39762, USA.
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9
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Ruiz-Zambrana C, Gutiérrez-Blanco A, Gonell S, Poyatos M, Peris E. Redox-Switchable Cycloisomerization of Alkynoic Acids with Napthalenediimide-Derived N-Heterocyclic Carbene Complexes. Angew Chem Int Ed Engl 2021; 60:20003-20011. [PMID: 34255909 PMCID: PMC8457061 DOI: 10.1002/anie.202107973] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Indexed: 12/22/2022]
Abstract
Two naphthalene‐diimide (NDI) bis‐imidazolium salts have been used as N‐heterocyclic carbene (NHC) precursors for the preparation of NDI‐functionalized complexes of rhodium and iridium of general formula [MCl(NDI‐NHC)(COD)] (M=Rh, Ir; NDI‐NHC=NDI‐functionalized NHC ligand). Comparison of the IR spectra of the complexes [IrCl(NDI‐NHC)(CO)2] and their related one‐ and two‐electron reduced forms, reveal that each one‐electron reduction produces a decrease of the average ν(CO) of 9–10 cm−1, indicating a significant enhancement of the electron‐richness of the metal. The [MCl(NDI‐NHC)(COD)] complexes were tested in the catalytic cycloisomerization of alkynoic acids. The one‐electron reduced forms showed greatly enhanced activities. For the cyclization of 5‐hexynoic acid, the two‐electron reduction of the ligand produced further enhancement of the catalytic activity, therefore showing that the catalyst can switch between three redox species with three distinct catalytic activities.
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Affiliation(s)
- César Ruiz-Zambrana
- Institute of Advanced Materials (INAM)., Universitat Jaume I., Av. Vicente Sos Baynat s/n., 12071, Castellón, Spain
| | - Ana Gutiérrez-Blanco
- Institute of Advanced Materials (INAM)., Universitat Jaume I., Av. Vicente Sos Baynat s/n., 12071, Castellón, Spain
| | - Sergio Gonell
- Institute of Advanced Materials (INAM)., Universitat Jaume I., Av. Vicente Sos Baynat s/n., 12071, Castellón, Spain
| | - Macarena Poyatos
- Institute of Advanced Materials (INAM)., Universitat Jaume I., Av. Vicente Sos Baynat s/n., 12071, Castellón, Spain
| | - Eduardo Peris
- Institute of Advanced Materials (INAM)., Universitat Jaume I., Av. Vicente Sos Baynat s/n., 12071, Castellón, Spain
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10
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Galiana‐Cameo M, Passarelli V, Pérez‐Torrente JJ, Di Giuseppe A, Castarlenas R. Variation on the π‐Acceptor Ligand within a Rh
I
−N‐Heterocyclic Carbene Framework: Divergent Catalytic Outcomes for Phenylacetylene‐Methanol Transformations. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100399] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- María Galiana‐Cameo
- Departamento de Química Inorgánica-Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) Universidad de Zaragoza-CSIC C/Pedro Cerbuna 12 CP 50009 Zaragoza Spain
| | - Vincenzo Passarelli
- Departamento de Química Inorgánica-Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) Universidad de Zaragoza-CSIC C/Pedro Cerbuna 12 CP 50009 Zaragoza Spain
| | - Jesús J. Pérez‐Torrente
- Departamento de Química Inorgánica-Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) Universidad de Zaragoza-CSIC C/Pedro Cerbuna 12 CP 50009 Zaragoza Spain
| | - Andrea Di Giuseppe
- Departamento de Química Inorgánica-Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) Universidad de Zaragoza-CSIC C/Pedro Cerbuna 12 CP 50009 Zaragoza Spain
- Dipartimento di Scienze Fisiche e Chimiche Università dell'Aquila Via Vetoio 67100 Coppito (AQ) Italy
| | - Ricardo Castarlenas
- Departamento de Química Inorgánica-Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) Universidad de Zaragoza-CSIC C/Pedro Cerbuna 12 CP 50009 Zaragoza Spain
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11
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Saha S, Sahil ST, Mazumder MMR, Stephens AM, Cronin B, Duin EC, Jurss JW, Farnum BH. Synthesis, characterization, and electrocatalytic activity of bis(pyridylimino)isoindoline Cu(ii) and Ni(ii) complexes. Dalton Trans 2021; 50:926-935. [DOI: 10.1039/d0dt03030a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Similar structure observed between Cu(ii) and Ni(ii) based bis(pyridylimino)isoindole complexes, yet greatly different levels of catalytic activity.
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Affiliation(s)
- Soumen Saha
- Department of Chemistry and Biochemistry
- Auburn University
- Auburn
- USA
| | - Sha Tamanna Sahil
- Department of Chemistry and Biochemistry
- University of Mississippi
- University
- USA
| | | | | | - Bryan Cronin
- Department of Chemistry and Biochemistry
- Auburn University
- Auburn
- USA
| | - Evert C. Duin
- Department of Chemistry and Biochemistry
- Auburn University
- Auburn
- USA
| | - Jonah W. Jurss
- Department of Chemistry and Biochemistry
- University of Mississippi
- University
- USA
| | - Byron H. Farnum
- Department of Chemistry and Biochemistry
- Auburn University
- Auburn
- USA
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12
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Srivastava R, Jakoobi M, Thieuleux C, Quadrelli EA, Camp C. A family of rhodium(i) NHC chelates featuring O-containing tethers for catalytic tandem alkene isomerization-hydrosilylation. Dalton Trans 2020; 50:869-879. [PMID: 33237067 DOI: 10.1039/d0dt03698f] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The rhodium complex Rh(HL)(COD)Cl, 1, L being a functionalized N-heterocyclic carbene (NHC) ligand with an oxygen-containing pendant arm, has been used as the entry point to synthesize a series of neutral and cationic Rh(i) O,C chelates. While the Rh-carbene interaction is similar in all these 16-electron complexes, structural analysis reveals that the strength of the Rh-O bond is greatly affected by the nature of the O-donor: R-O- > R-OH > R-OBF3. These subtle changes in the nature of the O-containing tether are found to be responsible for large differences in the alkene hydrosilylation catalytic activity of these compounds: the stronger the Rh-O interaction, the better the catalytic performances. The most active catalyst, [Rh(L)(COD)], 2, demonstrated good catalytic activity under mild reaction conditions for the hydrosilylation of a range of alkene substrates with the industrially relevant non-activated tertiary silane, 1,1,1,3,5,5,5-heptamethyltrisiloxane (MDHM). Furthermore, this complex is an effective catalyst for the selective remote functionalization of internal olefins at room temperature via tandem alkene isomerization-hydrosilylation.
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Affiliation(s)
- Ravi Srivastava
- Université de Lyon, Institut de Chimie de Lyon, C2P2 UMR 5265 CNRS-UCBL-CPE Lyon, 43 Bd du 11 Novembre 1918, F-69616 Villeurbanne, France.
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13
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Chelate ring size effects of Ir(P,N,N) complexes: Chemoselectivity switch in the asymmetric hydrogenation of α,β-unsaturated ketones. CATAL COMMUN 2020. [DOI: 10.1016/j.catcom.2020.106128] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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14
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Tang RH, Xu Z, Nie YX, Xiao XQ, Yang KF, Xie JL, Guo B, Yin GW, Yang XM, Xu LW. Catalytic Asymmetric trans-Selective Hydrosilylation of Bisalkynes to Access AIE and CPL-Active Silicon-Stereogenic Benzosiloles. iScience 2020; 23:101268. [PMID: 32599559 PMCID: PMC7326740 DOI: 10.1016/j.isci.2020.101268] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/27/2020] [Accepted: 06/08/2020] [Indexed: 01/01/2023] Open
Abstract
Chirality widely exists in a diverse array of biologically active molecules and life forms, and the catalytic constructions of chiral molecules have triggered a heightened interest in the fields of chemistry and materials and pharmaceutical sciences. However, the synthesis of silicon-stereogenic organosilicon compounds is generally recognized as a much more difficult task than that of carbon-stereogenic centers because of no abundant organosilicon-based chiral sources in nature. Herein, we reported a highly enantioselective rhodium-catalyzed trans-selective hydrosilylation of silicon-tethered bisalkynes to access chiral benzosiloles bearing a silicon-stereogenic center. This protocol featured with chiral Ar-BINMOL-Phos bearing hydrogen-bond donors as a privileged P-ligand for catalytic asymmetric hydrosilylation that is operationally simple and has 100% atom-economy with good functional group tolerability as well as high enantioselectivity (up to >99:1 er). Benefiting from the trans-selective hydrosilylation with the aid of Rh/Ar-BINMOL-Phos-based asymmetric catalysis, the Si-stereogenic benzosiloles exhibited pronounced aggregation-induced emission (AIE) and circularly polarized luminescence (CPL) activity.
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Affiliation(s)
- Ren-He Tang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Zheng Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Yi-Xue Nie
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Xu-Qiong Xiao
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Ke-Fang Yang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Jia-Le Xie
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Bin Guo
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Guan-Wu Yin
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Xue-Min Yang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Li-Wen Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, P. R. China; State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute (SRI), Lanzhou Institute of Chemical Physics (LICP), University of the Chinese Academy of Sciences (UCAS), Lanzhou 730000, P. R. China.
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15
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Puerta-Oteo R, Munarriz J, Polo V, Jiménez MV, Pérez-Torrente JJ. Carboxylate-Assisted β-(Z) Stereoselective Hydrosilylation of Terminal Alkynes Catalyzed by a Zwitterionic Bis-NHC Rhodium(III) Complex. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01582] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Raquel Puerta-Oteo
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Facultad de Ciencias, Universidad de Zaragoza−CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Julen Munarriz
- Departamento de Química Física, Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Facultad de Ciencias, Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- Department of Chemistry & Biochemistry, University of California Los Angeles (UCLA), Los Angeles, California 90095, United States
| | - Víctor Polo
- Departamento de Química Física, Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Facultad de Ciencias, Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - M. Victoria Jiménez
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Facultad de Ciencias, Universidad de Zaragoza−CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Jesús J. Pérez-Torrente
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Facultad de Ciencias, Universidad de Zaragoza−CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
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16
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Dubey P, Singh AK. Sonogashira Coupling (Cu/Amine‐Free) of ArBr/Cl in Aerobic Condition and N
‐
Benzylation of Aniline with Benzyl Alcohol Catalyzed by Complexes of Pd(II) with Sulfated/Selenated NHCs. ChemistrySelect 2020. [DOI: 10.1002/slct.201904819] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Pooja Dubey
- Department of Chemistry, Indian Institute of Technology, Delhi New Delhi 110016 India
| | - Ajai K. Singh
- Department of Chemistry, Indian Institute of Technology, Delhi New Delhi 110016 India
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17
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Layek S, Agrahari B, Ganguly R, Das P, Pathak DD. Carbonylative Suzuki coupling reactions catalyzed by ONO pincer–type Pd(II) complexes using chloroform as a carbon monoxide surrogate. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5414] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Samaresh Layek
- Department of ChemistryIndian Institute of Technology (ISM) Dhanbad 826004 India
| | - Bhumika Agrahari
- Department of ChemistryIndian Institute of Technology (ISM) Dhanbad 826004 India
| | - Rakesh Ganguly
- Division of Chemistry & Biological ChemistryNanyang Technological University 639798 Singapore
| | - Parthasarathi Das
- Department of ChemistryIndian Institute of Technology (ISM) Dhanbad 826004 India
| | - Devendra D. Pathak
- Department of ChemistryIndian Institute of Technology (ISM) Dhanbad 826004 India
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18
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Layek S, Agrahari B, Kumar A, Dege N, Pathak DD. Synthesis and X-ray crystal structures of three new nickel(II) complexes of benzoylhydrazones: Catalytic applications in the synthesis of 2-arylbenzoxazoles. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119222] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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19
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Recent advances in the chemistry of group 9—Pincer organometallics. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2020. [DOI: 10.1016/bs.adomc.2019.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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20
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Huang Y, Zhang X, Dong X, Zhang X. Iridium‐Catalyzed Cycloisomerization of Alkynoic Acids: Synthesis of Unsaturated Lactones. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901322] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yi Huang
- Key Laboratory of Biomedical PolymersEngineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan Hubei 430072 People's Republic of China
| | - Xianghe Zhang
- Key Laboratory of Biomedical PolymersEngineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan Hubei 430072 People's Republic of China
| | - Xiu‐Qin Dong
- Key Laboratory of Biomedical PolymersEngineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan Hubei 430072 People's Republic of China
| | - Xumu Zhang
- Key Laboratory of Biomedical PolymersEngineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan Hubei 430072 People's Republic of China
- Department of Chemistry, Southern University of Science and TechnologyShenzhen Grubbs Institute, Shenzhen Guangdong 518055 People's Republic of China
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21
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A Rh(I) complex with an annulated N-heterocyclic carbene ligand for E-selective alkyne hydrosilylation. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.04.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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22
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Ren X, Wesolek M, Braunstein P. Nickel(II) Complexes with Tritopic Nimine
CNHC
Namine
Pincer Ligands. Chemistry 2018; 24:14794-14801. [DOI: 10.1002/chem.201802969] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Indexed: 12/30/2022]
Affiliation(s)
- Xiaoyu Ren
- Université de Strasbourg; CNRS, CHIMIE UMR 7177; Laboratoire de Chimie de Coordination; 4 rue Blaise Pascal 67081 Strasbourg Cedex France
| | - Marcel Wesolek
- Université de Strasbourg; CNRS, CHIMIE UMR 7177; Laboratoire de Chimie de Coordination; 4 rue Blaise Pascal 67081 Strasbourg Cedex France
| | - Pierre Braunstein
- Université de Strasbourg; CNRS, CHIMIE UMR 7177; Laboratoire de Chimie de Coordination; 4 rue Blaise Pascal 67081 Strasbourg Cedex France
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23
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Leconte N, du Moulinet d'Hardemare A, Philouze C, Thomas F. A highly active diradical cobalt(iii) catalyst for the cycloisomerization of alkynoic acids. Chem Commun (Camb) 2018; 54:8241-8244. [PMID: 29987295 DOI: 10.1039/c8cc04459g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The first cobalt-catalysed cycloisomerisation of alkynoic acids is reported, thanks to the design of a well-defined diradical cobalt(iii) catalyst, in the absence of any additives. The high efficiency, regioselectivity and chemoselectivity are comparable to those of noble metal-based systems. The unique reactivity might be attributed to second coordination sphere effects.
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Affiliation(s)
- Nicolas Leconte
- Département de Chimie Moléculaire, Université Grenoble Alpes, CS 40700, 38058 Grenoble cedex 9, France.
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24
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Fei F, Lu T, Yang C, Chen X, Xue Z. Synthesis, Structures, and Catalytic Properties of Dinuclear Iridium(I) Complexes with a Hexadentate Macrocyclic Diamine‐Tetracarbene Ligand. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800088] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Fan Fei
- State Key Laboratory of Coordination Chemistry Nanjing National Laboratory of Microstructures School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing P. R. China
| | - Taotao Lu
- State Key Laboratory of Coordination Chemistry Nanjing National Laboratory of Microstructures School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing P. R. China
| | - Chu‐Fan Yang
- State Key Laboratory of Coordination Chemistry Nanjing National Laboratory of Microstructures School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing P. R. China
| | - Xue‐Tai Chen
- State Key Laboratory of Coordination Chemistry Nanjing National Laboratory of Microstructures School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing P. R. China
| | - Zi‐Ling Xue
- Department of Chemistry University of Tennessee 37996 Knoxville Tennessee USA
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25
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Lin HJ, Lutz S, O'Kane C, Zeller M, Chen CH, Al Assil T, Lee WT. Synthesis and characterization of an iron complex bearing a hemilabile NNN-pincer for catalytic hydrosilylation of organic carbonyl compounds. Dalton Trans 2018; 47:3243-3247. [PMID: 29445796 DOI: 10.1039/c7dt04928e] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A low-coordinate iron(ii) complex (CztBu(PztBu)2)Fe[N(SiMe3)2], 1 bearing an NNN-pincer ligand was prepared and fully characterized. Intramolecular C-H activation on the 5-position of a pyrazole at elevated temperatures was observed. Complex 1 was found to be an efficient and chemoselective pre-catalyst for the hydrosilylation of organo carbonyl substrates.
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Affiliation(s)
- Hsiu-Jung Lin
- Department of Chemistry and Biochemistry, Loyola University Chicago, Chicago, IL 60660, USA.
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26
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Lawrence MA, Green KA, Nelson PN, Lorraine SC. Review: Pincer ligands—Tunable, versatile and applicable. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.08.017] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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27
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Gu S, Du J, Huang J, Guo Y, Yang L, Xu W, Chen W. Unsymmetrical NCN-pincer mononuclear and dinuclear nickel(ii) complexes of N-heterocyclic carbene (NHC): synthesis, structure and catalysis for Suzuki-Miyaura cross-coupling. Dalton Trans 2018; 46:586-594. [PMID: 27990545 DOI: 10.1039/c6dt03944h] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This report describes the synthesis and characterization of a family of unsymmetrical NCN pincer Ni(ii) complexes 2-8 with NHC-triazole arms. All of these complexes have been fully characterized by X-ray single crystal analysis, NMR spectroscopy, and elemental analysis. Complexes 2 and 4-6 were square planar with a chloride trans to the carbene carbon atoms. Complex 3 was a paramagnetic octahedral complex with its central metal surrounded by two NCN pincer ligands. Complexes 7 and 8 contain [(NHC)2Ni2-OH] moieties bearing a OH bridge. Both the [(NHC)2Ni2-OH] complexes 7 and 8 and [(NCNHCN)Ni-Cl] complexes 2 and 4-6 were synthesized similarly via the reactions of the in situ formed Ag-NHCs from the corresponding imidazolium salts with [NiCl2(PPh3)2]. The catalytic activities of all complexes for Suzuki-Miyaura cross-coupling were examined. Under the optimized conditions, complex 4 was active in the Suzuki-Miyaura cross-coupling reactions of aryl iodides and aryl bromides at 110 °C. Aryl chlorides were successfully coupled in the presence of triphenylphosphine as an additive.
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Affiliation(s)
- Shaojin Gu
- School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, People's Republic of China.
| | - Jiehao Du
- School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, People's Republic of China.
| | - Jingjing Huang
- School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, People's Republic of China.
| | - Yun Guo
- School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, People's Republic of China.
| | - Ling Yang
- School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, People's Republic of China.
| | - Weilin Xu
- School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, People's Republic of China.
| | - Wanzhi Chen
- Department of Chemistry, Zhejiang University, Hangzhou, 310028, People's Republic of China.
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28
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Karataş MO, Di Giuseppe A, Passarelli V, Alıcı B, Pérez-Torrente JJ, Oro LA, Özdemir I, Castarlenas R. Pentacoordinated Rhodium(I) Complexes Supported by Coumarin-Functionalized N-Heterocyclic Carbene Ligands. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00750] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Mert Olgun Karataş
- Departamento
de Química Inorgánica − Instituto de Síntesis
Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza − CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- Department
of Chemistry, Faculty of Sciences, Inonu University, 44280 Malatya, Turkey
| | - Andrea Di Giuseppe
- Departamento
de Química Inorgánica − Instituto de Síntesis
Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza − CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Vincenzo Passarelli
- Departamento
de Química Inorgánica − Instituto de Síntesis
Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza − CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
- Centro Universitario de la Defensa, Ctra Huesca S/N, 50090 Zaragoza, Spain
| | - Bülent Alıcı
- Department
of Chemistry, Faculty of Sciences, Inonu University, 44280 Malatya, Turkey
| | - Jesús J. Pérez-Torrente
- Departamento
de Química Inorgánica − Instituto de Síntesis
Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza − CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Luis A. Oro
- Departamento
de Química Inorgánica − Instituto de Síntesis
Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza − CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Ismail Özdemir
- Department
of Chemistry, Faculty of Sciences, Inonu University, 44280 Malatya, Turkey
| | - Ricardo Castarlenas
- Departamento
de Química Inorgánica − Instituto de Síntesis
Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza − CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
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29
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Radhakrishna L, Pandey MK, Balakrishna MS. 1,2,3-Triazole based bisphosphine, 5-(diphenylphosphanyl)-1-(2-(diphenylphosphanyl)-phenyl)-4-phenyl-1H-1,2,3-triazole: an ambidentate ligand with switchable coordination modes. RSC Adv 2018; 8:25704-25718. [PMID: 35539783 PMCID: PMC9082604 DOI: 10.1039/c8ra04086a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 07/06/2018] [Indexed: 12/05/2022] Open
Abstract
The reaction of 1-(2-bromophenyl)-4-phenyl-1H-1,2,3-triazole (1) with Ph2PCl yielded bisphosphine, 5-(diphenylphosphanyl)-1-(2-(diphenylphosphanyl)phenyl)-4-phenyl-1H-1,2,3-triazole (2). Bisphosphine 2 exhibits ambidentate character in either the κ2-P,N or κ2-P,P coordination mode. Treatment of 2 with [M(CO)4(piperidine)2] (M = Mo and W) yielded κ2-P,N and κ2-P,P coordinated Mo0 and W0 complexes [M(CO)4(2)] [M = W-κ2-P,N (4); Mo-κ2-P,P (5); W-κ2-P,P (6)] depending on the reaction conditions. Formation and stability of κ2-P,P coordinated Mo0 and W0 complexes were assessed by time dependent 31P{1H} NMR experiments and DFT studies. The complex 4 on treatment with [AuCl(SMe2)] afforded the hetero-bimetallic complex [μ-PN,P-{o-Ph2P(C6H4){1,2,3-N3C(Ph)C(PPh2AuCl)}-κ2-P,N}W(CO)4] (7). The 1 : 1 reaction between 2 and [CpRu(PPh3)2Cl] yielded [(η5-C5H5)RuCl{o-Ph2P(C6H4){1,2,3-N3C(Ph)C(PPh2)}}-κ2-P,P] (8), whereas the similar reaction with [Ru(η6-p-cymene)Cl2]2 in a 2 : 1 molar ratio produced a cationic complex [(η6-p-cymene)RuCl{o-Ph2P(C6H4){1,2,3-N3C(Ph)C(PPh2)}}-κ2-P,N]Cl (9). Similarly, treatment of 2 with [M(COD)(Cl)2] (M = Pd and Pt) in a 1 : 1 molar ratio yielded PdII and PtII complexes [{o-Ph2P(C6H4){1,2,3-N3C(Ph)C(PPh2)}-κ2-P,P}PdCl2] (10) and [{o-Ph2P(C6H4){1,2,3-N3C(Ph)C(PPh2)}-κ2-P,P}PtCl2] (11). The reaction of 2 with 2 equiv. of [AuCl(SMe2)] afforded [Au2Cl2{o-Ph2P(C6H4){1,2,3-N3C(Ph)C(PPh2)}}-μ-P,P] (12). Most of the complexes have been structurally characterized. Palladium complex 10 shows excellent catalytic activity towards Cu-free Sonogashira alkynylation/cyclization reactions. This paper describes the synthesis of a triazole based bisphosphine and its transition metal chemistry and catalytic utility in Cu-free Sonogashira alkynylation/cyclization reaction.![]()
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Affiliation(s)
| | - Madhusudan K. Pandey
- Phosphorus Laboratory
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Maravanji S. Balakrishna
- Phosphorus Laboratory
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
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30
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Nair AG, McBurney RT, Gatus MRD, Binding SC, Messerle BA. Gold(III) NHC Complexes for Catalyzing Dihydroalkoxylation and Hydroamination Reactions. Inorg Chem 2017; 56:12067-12075. [PMID: 28933838 DOI: 10.1021/acs.inorgchem.7b02161] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A gold(III) complex of an N-heterocyclic carbene based hemilabile ligand with two pendant pyrazole arms (1,3-bis((1H-pyrazol-3-yl)methyl)-2,3-dihydro-1H-imidazole, LH) was synthesized. Complex [LAu(III)Cl3] is an excellent catalyst for promoting dihydroalkoxylation at room temperature, even catalyzing this reaction at 0 °C. [LAu(III)Cl3] is one of the most efficient catalysts reported to date for the spirocyclization of alkynyl diols. Furthermore, [LAu(III)Cl3] catalyzed intra- and intermolecular hydroamination reactions, achieving good to excellent conversions. [LAu(III)Cl3] is a more efficient catalyst than a gold(I) analogue, [LAu(I)Cl]. The dependence of the quantity of weakly coordinating anion [BArF4]- ((3,5-trifluoromethyl)phenyl borate) present on catalysis efficiency was probed for the dihydroalkoxylation reaction. X-ray diffraction analysis of single crystals demonstrated the solid-state structure of gold complexes [LAu(III)Cl3] and [LAu(I)Cl], which displayed the expected square-planar and linear coordination geometries, respectively.
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Affiliation(s)
- Ashwin G Nair
- Department of Chemistry and Biomolecular Sciences, Macquarie University , Sydney 2109, Australia
| | - Roy T McBurney
- Department of Chemistry and Biomolecular Sciences, Macquarie University , Sydney 2109, Australia
| | - Mark R D Gatus
- Department of Chemistry and Biomolecular Sciences, Macquarie University , Sydney 2109, Australia
| | - Samantha C Binding
- Department of Chemistry and Biomolecular Sciences, Macquarie University , Sydney 2109, Australia
| | - Barbara A Messerle
- Department of Chemistry and Biomolecular Sciences, Macquarie University , Sydney 2109, Australia
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31
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Nair AG, McBurney RT, Gatus MR, Walker D, Bhadbhade M, Messerle BA. Synthesis and catalytic activity of nickel(II) complexes containing NCN pincer ligands. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.02.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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32
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Motokura K, Maeda K, Chun WJ. SiO2-Supported Rh Catalyst for Efficient Hydrosilylation of Olefins Improved by Simultaneously Immobilized Tertiary Amines. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01523] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ken Motokura
- Department
of Chemical Science and Engineering, School of Materials and Chemical
Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan
| | - Kyogo Maeda
- Department
of Chemical Science and Engineering, School of Materials and Chemical
Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan
| | - Wang-Jae Chun
- Graduate
School of Arts and Sciences, International Christian University, Mitaka, Tokyo 181-8585, Japan
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33
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Morales-Cerón JP, Lara P, López-Serrano J, Santos LL, Salazar V, Álvarez E, Suárez A. Rhodium(I) Complexes with Ligands Based on N-Heterocyclic Carbene and Hemilabile Pyridine Donors as Highly E Stereoselective Alkyne Hydrosilylation Catalysts. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00361] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Judith P. Morales-Cerón
- Área
Académica de Químicas, Universidad Autónoma del Estado de Hidalgo 42184 Mineral de la Reforma, Hidalgo, Mexico
| | - Patricia Lara
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica and Centro de Innovación en Química
Avanzada (ORFEO-CINQA), CSIC and Universidad de Sevilla, 41092 Sevilla, Spain
| | - Joaquín López-Serrano
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica and Centro de Innovación en Química
Avanzada (ORFEO-CINQA), CSIC and Universidad de Sevilla, 41092 Sevilla, Spain
| | - Laura L. Santos
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica and Centro de Innovación en Química
Avanzada (ORFEO-CINQA), CSIC and Universidad de Sevilla, 41092 Sevilla, Spain
| | - Verónica Salazar
- Área
Académica de Químicas, Universidad Autónoma del Estado de Hidalgo 42184 Mineral de la Reforma, Hidalgo, Mexico
| | - Eleuterio Álvarez
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica and Centro de Innovación en Química
Avanzada (ORFEO-CINQA), CSIC and Universidad de Sevilla, 41092 Sevilla, Spain
| | - Andrés Suárez
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica and Centro de Innovación en Química
Avanzada (ORFEO-CINQA), CSIC and Universidad de Sevilla, 41092 Sevilla, Spain
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34
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Abstract
It is well-recognized that N-heterocyclic carbene (NHC) ligands have provided a new dimension to the design of homogeneous catalysts. Part of the success of this type of ligands resides in the limitless access to a variety of topologies with tuned electronic properties, but also in the ability of a family of NHCs that are able to adapt their properties to the specific requirements of individual catalytic transformations. The term "smart" is used here to refer to switchable, multifunctional, adaptable, or tunable ligands and, in general, to all those ligands that are able to modify their steric or electronic properties to fulfill the requirements of a defined catalytic reaction. The purpose of this review is to comprehensively describe all types of smart NHC ligands by focusing attention on the catalytically relevant ligand-based reactivity.
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Affiliation(s)
- Eduardo Peris
- Institute of Advanced Materials , Universitat Jaume I , Avenida Vicente Sos Baynat s/n , Castellón E-12071 , Spain
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35
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Corona-González MV, Zamora-Moreno J, Cuevas-Chávez CA, Rufino-Felipe E, Mothes-Martin E, Coppel Y, Muñoz-Hernández MA, Vendier L, Flores-Alamo M, Grellier M, Sabo-Etienne S, Montiel-Palma V. A family of rhodium and iridium complexes with semirigid benzylsilyl phosphines: from bidentate to tetradentate coordination modes. Dalton Trans 2017; 46:8827-8838. [DOI: 10.1039/c7dt00727b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rh and Ir coordination of phosphines with 1 to 3 Si–H groups.
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36
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Zhang L, Zhang XB, Zhang DD, He SG. Theoretical prediction of the synthesis of 2,3-dihydropyridines through Ir( iii)-catalysed reaction of unsaturated oximes with alkenes. RSC Adv 2017. [DOI: 10.1039/c6ra25501a] [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] Open
Abstract
The Ir(iii)-catalysed reaction of unsaturated oximes with alkenes was predicted, and the results indicate a more efficient synthesis of 2,3-dihydropyridines.
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Affiliation(s)
- Lei Zhang
- School of Materials Science and Engineering
- Anhui University of Science and Technology
- Huainan 232001
- People's Republic of China
| | - Xiang-Biao Zhang
- School of Chemical Engineering
- Anhui University of Science and Technology
- Huainan 232001
- People's Republic of China
| | - Dan-Dan Zhang
- School of Chemical Engineering
- Anhui University of Science and Technology
- Huainan 232001
- People's Republic of China
| | - Sheng-Gui He
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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37
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Bouché M, Mordan M, Kariuki BM, Coles SJ, Christensen J, Newman PD. Mono- and dimeric complexes of an asymmetric heterotopic P,CNHC,pyr ligand. Dalton Trans 2016; 45:13347-60. [PMID: 27461718 DOI: 10.1039/c6dt02476a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An asymmetric heterotopic ligand (S-N(Me)CP) containing a central bicyclic, expanded-ring NHC with one pyridyl and one phosphine exo-substituent has been synthesised and its coordination chemistry with selected late transition metals investigated. The amidinium precursor [S-N(Me)CHP]PF6 shows variable coordination modes with Ag(i), Cu(i) and Au(i) depending on the L : M ratio. The reaction of two mols of [S-N(Me)CHP]PF6 with [Cu(MeCN)4]BF4, AgBF4 or Au(THT)Cl gives the bis-ligand complexes [Cu(κ-P-N(Me)CHP)2(CH3CN)2]BF4·(PF6)2, 1, and [M(κ-P-N(Me)CHP)2]X·(PF6)2 (3: M = Ag, X = BF4; 6: M = Au, X = Cl) respectively. The 1 : 1 reaction of [S-N(Me)CHP]PF6 with AgOTf gave the head-to-tail dimer H,T-[Ag2(μ-N,P-N(Me)CHP)2(μ-OTf)2](PF6)2, 2, whereas the analogous reaction with Au(THT)Cl gave monomeric [Au(κ-P-N(Me)CHP)Cl]PF6, 5. Complex 2 was converted to H,T-[Ag2(μ-C,P-N(Me)CP)2](PF6)2, 4, upon addition of base, while 6 gave [Au(κ-C-N(Me)CP)2]Cl, 8, when treated likewise. Reaction of [S-N(Me)CHP]PF6 with Ni(1,5-COD)2 gave the oxidative addition/insertion product [Ni(κ(3)-N,C,P-N(Me)CP)(η(3)-C8H13)]PF6, 9, which converted to [Ni(κ(3)-N,C,P-N(Me)CP)Cl]PF6, 10, upon exposure of a CHCl3 solution to air. Complex 10 showed conformational isomerism that was also present in [Rh(κ(3)-N,C,P-N(Me)CP)(CO)]PF6, 14, prepared from the precursor complex [Rh(κ-P-N(Me)CHP)(acac)(CO)]PF6, 13, upon heating in C6H5Cl. [Pt(κ(3)-N,C,P-N(Me)CP)(Cl)]PF6, 12, derived from trans-[Pt(κ-P-N(Me)CHP)2(Cl)2](PF6)2, 11, was isolated as a single conformer.
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Affiliation(s)
- Mathilde Bouché
- School of Chemistry, Cardiff University, Cardiff, CF10 3AT, UK.
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38
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Sánchez P, Hernández-Juárez M, Álvarez E, Paneque M, Rendón N, Suárez A. Synthesis, structure and reactivity of Pd and Ir complexes based on new lutidine-derived NHC/phosphine mixed pincer ligands. Dalton Trans 2016; 45:16997-17009. [DOI: 10.1039/c6dt03652j] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel proton-responsive lutidine-derived CNP ligands having a flexible Py–CH2–NHC linkage adopt mer and fac coordination modes.
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Affiliation(s)
- Práxedes Sánchez
- Instituto de Investigaciones Químicas (IIQ)
- Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- CSIC and Universidad de Sevilla
- Sevilla
- Spain
| | - Martín Hernández-Juárez
- Instituto de Investigaciones Químicas (IIQ)
- Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- CSIC and Universidad de Sevilla
- Sevilla
- Spain
| | - Eleuterio Álvarez
- Instituto de Investigaciones Químicas (IIQ)
- Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- CSIC and Universidad de Sevilla
- Sevilla
- Spain
| | - Margarita Paneque
- Instituto de Investigaciones Químicas (IIQ)
- Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- CSIC and Universidad de Sevilla
- Sevilla
- Spain
| | - Nuria Rendón
- Instituto de Investigaciones Químicas (IIQ)
- Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- CSIC and Universidad de Sevilla
- Sevilla
- Spain
| | - Andrés Suárez
- Instituto de Investigaciones Químicas (IIQ)
- Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- CSIC and Universidad de Sevilla
- Sevilla
- Spain
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39
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Nair AG, McBurney RT, Walker DB, Page MJ, Gatus MRD, Bhadbhade M, Messerle BA. Ruthenium(ii) complexes of hemilabile pincer ligands: synthesis and catalysing the transfer hydrogenation of ketones. Dalton Trans 2016; 45:14335-42. [DOI: 10.1039/c6dt02459a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A series of hemilabile NHC Ru(ii) complexes were synthesised and assessed for their catalytic activity for transfer hydrogenation reactions.
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Affiliation(s)
- Ashwin G. Nair
- School of Chemistry
- University of New South Wales
- Sydney 2052
- Australia
- Department of Chemistry and Biomolecular Sciences
| | - Roy T. McBurney
- Department of Chemistry and Biomolecular Sciences
- Macquarie University
- Australia
| | - D. Barney Walker
- School of Chemistry
- University of New South Wales
- Sydney 2052
- Australia
- Department of Chemistry and Biomolecular Sciences
| | - Michael J. Page
- School of Chemistry
- University of New South Wales
- Sydney 2052
- Australia
| | - Mark R. D. Gatus
- School of Chemistry
- University of New South Wales
- Sydney 2052
- Australia
- Department of Chemistry and Biomolecular Sciences
| | - Mohan Bhadbhade
- Mark Wainwright Analytical Centre
- University of New South Wales
- Sydney 2052
- Australia
| | - Barbara A. Messerle
- School of Chemistry
- University of New South Wales
- Sydney 2052
- Australia
- Department of Chemistry and Biomolecular Sciences
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40
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Arumugam V, Kaminsky W, Nallasamy D. ONO pincer type Pd(ii) complexes: synthesis, crystal structure and catalytic activity towards C-2 arylation of quinoline scaffolds. RSC Adv 2015. [DOI: 10.1039/c5ra15342e] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Four new palladium(ii) complexes featuring ONO pincer type hydrazone ligands were synthesized and characterized by spectroscopic and single-crystal XRD analysis. Utility of these complexes to catalyze C–C bond formation in quinoline scaffolds were assessed.
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Affiliation(s)
- Vignesh Arumugam
- Inorganic & Nanomaterials Research Laboratory
- Department of Chemistry
- Bharathiar University
- Coimbatore 641 046
- India
| | | | - Dharmaraj Nallasamy
- Inorganic & Nanomaterials Research Laboratory
- Department of Chemistry
- Bharathiar University
- Coimbatore 641 046
- India
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