1
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Chernyshev VM, Khazipov OV, Eremin DB, Denisova EA, Ananikov VP. Formation and stabilization of nanosized Pd particles in catalytic systems: Ionic nitrogen compounds as catalytic promoters and stabilizers of nanoparticles. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213860] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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2
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Nicholls TP, Williams JR, Willans CE. Reactivities of N-heterocyclic carbenes at metal centers. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2021. [DOI: 10.1016/bs.adomc.2021.01.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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3
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Jiang T, Zhang H, Ding Y, Zou S, Chang R, Huang H. Transition-metal-catalyzed reactions involving reductive elimination between dative ligands and covalent ligands. Chem Soc Rev 2020; 49:1487-1516. [DOI: 10.1039/c9cs00539k] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This review summarizes transition-metal catalyzed reactions with reductive elimination between covalent ligands and dative ligands as the key elementary step.
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Affiliation(s)
- Tianxiao Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry
- Center for Excellence in Molecular Synthesis
- University of Science and Technology of China
- Chinese Academy of Sciences
- Hefei
| | - Haocheng Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry
- Center for Excellence in Molecular Synthesis
- University of Science and Technology of China
- Chinese Academy of Sciences
- Hefei
| | - Yongzheng Ding
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry
- Center for Excellence in Molecular Synthesis
- University of Science and Technology of China
- Chinese Academy of Sciences
- Hefei
| | - Suchen Zou
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry
- Center for Excellence in Molecular Synthesis
- University of Science and Technology of China
- Chinese Academy of Sciences
- Hefei
| | - Rui Chang
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry
- Center for Excellence in Molecular Synthesis
- University of Science and Technology of China
- Chinese Academy of Sciences
- Hefei
| | - Hanmin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry
- Center for Excellence in Molecular Synthesis
- University of Science and Technology of China
- Chinese Academy of Sciences
- Hefei
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4
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Gordeev EG, Ananikov VP. Switching the nature of catalytic centers in Pd/NHC systems by solvent effect driven non-classical R-NHC Coupling. J Comput Chem 2019; 40:191-199. [PMID: 30284292 DOI: 10.1002/jcc.25572] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 08/08/2018] [Accepted: 08/09/2018] [Indexed: 11/06/2022]
Abstract
A well-established oxidative addition of organic halides (R-X) to N-heterocyclic carbene (NHC) complexes of palladium(0) leads to formation of (NHC)(R)PdII (X)L species, the key intermediates in a large variety of synthetically useful cross-coupling reactions. Typical consideration of the cross-coupling catalytic cycle is based on the assumption of intrinsic stability of these species, where the subsequent steps involve coordination of the second reacting partner. Thus, high stability of the intermediate (NHC)(R)PdII (X)L species is usually taken for granted. In the present study it is discussed that such intermediates are prone to non-classical R-NHC intramolecular coupling process (R = Me, Ph, Vinyl, Ethynyl) that results in removal of NHC ligand and generation of another type of Pd catalytic system. DFT calculations (BP86, TPSS, PBE1PBE, B3LYP, M06, wB97X-D) clearly show that outcome of R-NHC coupling process is not only determined by chemical nature of the organic substituent R, but also strongly depends on the type of solvent. The reaction is most favorable in polar solvents, whereas the non-polar solvents render the products less stable. © 2019 Wiley Periodicals, Inc.
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Affiliation(s)
- Evgeniy G Gordeev
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia
| | - Valentine P Ananikov
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia
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5
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Kostyukovich AY, Tsedilin AM, Sushchenko ED, Eremin DB, Kashin AS, Topchiy MA, Asachenko AF, Nechaev MS, Ananikov VP. In situ transformations of Pd/NHC complexes with N-heterocyclic carbene ligands of different nature into colloidal Pd nanoparticles. Inorg Chem Front 2019. [DOI: 10.1039/c8qi01095a] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A series of Pd/NHC species undergoes R–NHC coupling reaction forming catalytically active NHC-free complexes and/or colloidal Pd nanoparticles.
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Affiliation(s)
| | - Andrey M. Tsedilin
- Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | | | - Dmitry B. Eremin
- Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Alexey S. Kashin
- Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Maxim A. Topchiy
- M. V. Lomonosov Moscow State University
- Moscow
- Russia
- A. V. Topchiev Institute of Petrochemical Synthesis
- Russian Academy of Sciences
| | - Andrey F. Asachenko
- M. V. Lomonosov Moscow State University
- Moscow
- Russia
- A. V. Topchiev Institute of Petrochemical Synthesis
- Russian Academy of Sciences
| | - Mikhail S. Nechaev
- M. V. Lomonosov Moscow State University
- Moscow
- Russia
- A. V. Topchiev Institute of Petrochemical Synthesis
- Russian Academy of Sciences
| | - Valentine P. Ananikov
- Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russia
- M. V. Lomonosov Moscow State University
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6
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Din Reshi NU, Senthurpandi D, Samuelson AG. A mechanistic study of transfer hydrogenation catalyzed by cyclometallated ruthenium half-sandwich complexes. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.04.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Gordeev EG, Eremin DB, Chernyshev VM, Ananikov VP. Influence of R–NHC Coupling on the Outcome of R–X Oxidative Addition to Pd/NHC Complexes (R = Me, Ph, Vinyl, Ethynyl). Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00669] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Evgeniy G. Gordeev
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Pr. 47, Moscow 119991, Russia
| | - Dmitry B. Eremin
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Pr. 47, Moscow 119991, Russia
| | - Victor M. Chernyshev
- Platov South-Russian State Polytechnic University (NPI), Prosveschenya 132, Novocherkassk 346428, Russia
| | - Valentine P. Ananikov
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Pr. 47, Moscow 119991, Russia
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8
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Cho YJ, Lim YN, Yoon W, Yun H, Jang HY. Palladium-Bis(carbene) Catalysts for the Bisalkoxycarbonylation of Olefins to Succinic Diesters. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601546] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yu Jin Cho
- Division of Energy Systems Research; Ajou University; Suwon Korea
| | - Yu Na Lim
- Division of Energy Systems Research; Ajou University; Suwon Korea
| | - Woojin Yoon
- Division of Energy Systems Research; Ajou University; Suwon Korea
| | - Hoseop Yun
- Division of Energy Systems Research; Ajou University; Suwon Korea
| | - Hye-Young Jang
- Division of Energy Systems Research; Ajou University; Suwon Korea
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9
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Bolaño T, Esteruelas MA, Fernández I, Oñate E, Palacios A, Tsai JY, Xia C. Osmium(II)–Bis(dihydrogen) Complexes Containing Caryl,CNHC–Chelate Ligands: Preparation, Bonding Situation, and Acidity. Organometallics 2015. [DOI: 10.1021/om501275c] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Tamara Bolaño
- Departamento
de Química Inorgánica, Instituto de Síntesis
Química y Catálisis Homogénea (ISQCH), Centro
de Innovación en Química Avanzada (ORFEO − CINQA), Universidad de Zaragoza—CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento
de Química Inorgánica, Instituto de Síntesis
Química y Catálisis Homogénea (ISQCH), Centro
de Innovación en Química Avanzada (ORFEO − CINQA), Universidad de Zaragoza—CSIC, 50009 Zaragoza, Spain
| | - Israel Fernández
- Departamento
de Química Orgánica, Facultad de Ciencias Químicas,
Centro de Innovación en Química Avanzada (ORFEO −
CINQA), Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Enrique Oñate
- Departamento
de Química Inorgánica, Instituto de Síntesis
Química y Catálisis Homogénea (ISQCH), Centro
de Innovación en Química Avanzada (ORFEO − CINQA), Universidad de Zaragoza—CSIC, 50009 Zaragoza, Spain
| | - Adrián Palacios
- Departamento
de Química Inorgánica, Instituto de Síntesis
Química y Catálisis Homogénea (ISQCH), Centro
de Innovación en Química Avanzada (ORFEO − CINQA), Universidad de Zaragoza—CSIC, 50009 Zaragoza, Spain
| | - Jui-Yi Tsai
- Universal Display
Corporation, 375 Phillips Boulevard, Ewing, New Jersey 08618, United States
| | - Chuanjun Xia
- Universal Display
Corporation, 375 Phillips Boulevard, Ewing, New Jersey 08618, United States
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10
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Ge Q, Li B, Song H, Wang B. Rhodium(iii)-catalyzed cascade oxidative annulation reactions of aryl imidazolium salts with alkynes involving multiple C–H bond activation. Org Biomol Chem 2015; 13:7695-710. [DOI: 10.1039/c5ob00823a] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The cascade oxidative annulation reactions of aryl imidazolium salts with alkynes proceed efficiently in the presence of [Cp*RhCl2]2 and Cu(OAc)2·H2O to give substituted imidazo[1,2-a]-quinolinium salts and benzo[ij]imidazo[2,1,5-de]quinolizinium salts.
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Affiliation(s)
- Qingmei Ge
- State Key Laboratory of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Bin Li
- State Key Laboratory of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Haibin Song
- State Key Laboratory of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Baiquan Wang
- State Key Laboratory of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
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11
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Ma C, Ai C, Li Z, Li B, Song H, Xu S, Wang B. Synthesis and Alkyne Insertion Reactions of NHC-Based Cyclometalated Ruthenium(II) Complexes. Organometallics 2014. [DOI: 10.1021/om500369g] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Chong Ma
- State Key
Laboratory of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Weijin Road #94, Tianjin 300071, People’s Republic of China
| | - Chunjin Ai
- Lanzhou Petrochemical Research Center, Lanzhou 730060, People’s Republic of China
| | - Zhefu Li
- State Key
Laboratory of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Weijin Road #94, Tianjin 300071, People’s Republic of China
| | - Bin Li
- State Key
Laboratory of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Weijin Road #94, Tianjin 300071, People’s Republic of China
| | - Haibin Song
- State Key
Laboratory of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Weijin Road #94, Tianjin 300071, People’s Republic of China
| | - Shansheng Xu
- State Key
Laboratory of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Weijin Road #94, Tianjin 300071, People’s Republic of China
| | - Baiquan Wang
- State Key
Laboratory of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Weijin Road #94, Tianjin 300071, People’s Republic of China
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People’s Republic of China
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12
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Badaj AC, Lavoie GG. Reactivity Study of Imino-N-Heterocyclic Carbene Palladium(II) Methyl Complexes. Organometallics 2013. [DOI: 10.1021/om400533d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anna C. Badaj
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario
M3J 1P3, Canada
| | - Gino G. Lavoie
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario
M3J 1P3, Canada
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13
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Traversa E, Templeton JL, Cheng HY, Mohadjer Beromi M, White PS, West NM. Reductive Elimination from Platinum(IV) Aminotroponiminate Dimethyl Complexes Promoted by Sterically Hindered Lewis Bases. Organometallics 2013. [DOI: 10.1021/om400034y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Elise Traversa
- W.R. Kenan Laboratory, Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina
27599-3290, United States
| | - Joseph L. Templeton
- W.R. Kenan Laboratory, Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina
27599-3290, United States
| | - Hiu Yan Cheng
- Department of Chemistry and Biochemistry, University of the Sciences, 600 South
43rd Street, Philadelphia, Pennsylvania 19063, United States
| | - Megan Mohadjer Beromi
- Department of Chemistry and Biochemistry, University of the Sciences, 600 South
43rd Street, Philadelphia, Pennsylvania 19063, United States
| | - Peter S. White
- W.R. Kenan Laboratory, Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina
27599-3290, United States
| | - Nathan M. West
- Department of Chemistry and Biochemistry, University of the Sciences, 600 South
43rd Street, Philadelphia, Pennsylvania 19063, United States
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14
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Budagumpi S, Haque RA, Salman AW. Stereochemical and structural characteristics of single- and double-site Pd(II)–N-heterocyclic carbene complexes: Promising catalysts in organic syntheses ranging from CC coupling to olefin polymerizations. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.04.003] [Citation(s) in RCA: 143] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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15
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Meana I, Albéniz AC, Espinet P. Acyl–Carbene and Methyl–Carbene Coupling via Migratory Insertion in Palladium Complexes. Organometallics 2012. [DOI: 10.1021/om300462t] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Isabel Meana
- IU CINQUIMA/Química
Inorgánica, Universidad de Valladolid, 47071-Valladolid, Spain
| | - Ana C. Albéniz
- IU CINQUIMA/Química
Inorgánica, Universidad de Valladolid, 47071-Valladolid, Spain
| | - Pablo Espinet
- IU CINQUIMA/Química
Inorgánica, Universidad de Valladolid, 47071-Valladolid, Spain
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16
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Lee E, Yandulov DV. Synthesis and characterization of Pd(IMe)2, and its reactivity by C–S oxidative addition of DMSO. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.07.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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van Zeist WJ, Bickelhaupt FM. Steric nature of the bite angle. A closer and a broader look. Dalton Trans 2011; 40:3028-38. [PMID: 21331411 DOI: 10.1039/c0dt01550d] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The bite angle (ligand-metal-ligand angle) is known to greatly influence the activity of catalytically active transition-metal complexes towards bond activation. Here, we have computationally explored how and why the bite angle has such effects in a wide range of prototypical C-X bonds and palladium complexes, using relativistic density functional theory at ZORA-BLYP/TZ2P. Our model reactions cover the substrates H(3)C-X (with X = H, CH(3), Cl) and, among others, the model catalysts, Pd[PH(2)(CH(2))(n)PH(2)] (with n = 2-6) and Pd[PR(2)(CH(2))(n)PR(2)] (n = 2-4 and R = Me, Ph, t-Bu, Cl), Pd(PH(3))X(-) (X = Cl, Br, I), as well as palladium complexes of chelating and non-chelating N-heterocyclic carbenes. The purpose is to elaborate on an earlier finding that bite-angle effects have a predominantly (although not exclusively) steric nature: a smaller bite angle makes more room for coordinating a substrate by bending away the ligands. Indeed, the present results further consolidate this steric picture by revealing its occurrence in this broader range of model reactions and by identifying and quantifying the exact working mechanism through activation strain analyses.
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Affiliation(s)
- Willem-Jan van Zeist
- Department of Theoretical Chemistry and Amsterdam Center for Multiscale Modeling, Scheikundig Laboratorium der Vrije Universiteit, De Boelelaan 1083, 1081 HV, Amsterdam, The Netherlands
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18
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McCall AS, Wang H, Desper JM, Kraft S. Bis-N-heterocyclic carbene palladium(IV) tetrachloride complexes: synthesis, reactivity, and mechanisms of direct chlorinations and oxidations of organic substrates. J Am Chem Soc 2011; 133:1832-48. [PMID: 21247150 DOI: 10.1021/ja107342b] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This Article describes the preparation and isolation of novel octahedral CH(2)-bridged bis-(N-heterocyclic carbene)palladium(IV) tetrachlorides of the general formula LPd(IV)Cl(4) [L = (NHC)CH(2)(NHC)] from LPd(II)Cl(2) and Cl(2). In intermolecular, nonchelation-controlled transformations LPd(IV)Cl(4) reacted with alkenes and alkynes to 1,2-dichlorination adducts. Aromatic, benzylic, and aliphatic C-H bonds were converted into C-Cl bonds. Detailed mechanistic investigations in the dichlorinations of alkenes were conducted on the 18VE Pd(IV) complex. Positive solvent effects as well as kinetic measurements probing the impact of cyclohexene and chloride concentrations on the rate of alkene chlorination support a Pd(IV)-Cl ionization in the first step. Product stereochemistry and product distributions from various alkenes also support Cl(+)-transfer from the pentacoordinated Pd(IV)-intermediate LPd(IV)Cl(3)(+) to olefins. 1-Hexene/3-hexene competition experiments rule out both the formation of π-complexes along the reaction coordinate as well as in situ generated Cl(2) from a reductive elimination process. Instead, a ligand-mediated direct Cl(+)-transfer from LPd(IV)Cl(3)(+) to the π-system is likely to occur. Similarly, C-H bond chlorinations proceed via an electrophilic process with in situ formed LPd(IV)Cl(3)(+). The presence of a large excess of added Cl(-) slows cyclohexene chlorination while the presence of stoichiometric amounts of chloride accelerates both Pd(IV)-Cl ionization and Cl(+)-transfer from LPd(IV)Cl(3)(+). (1)H NMR titrations, T1 relaxation time measurements, binding isotherms, and Job plot analysis point to the formation of a trifurcated Cl(-)···H-C bond in the NHC-ligand periphery as a supramolecular cause for the accelerated chemical events involving the metal center.
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Affiliation(s)
- A Scott McCall
- Department of Chemistry, Kansas State University, 213 CBC Building, Manhattan, Kansas 66506-0401, United States
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19
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Ariafard A, Ejehi Z, Sadrara H, Mehrabi T, Etaati S, Moradzadeh A, Moshtaghi M, Nosrati H, Brookes NJ, Yates BF. Insight into the Mechanism of R−R Reductive Elimination from the Six-Coordinate d6 Complexes L2Pt(R)4 (R = vinyl, Me). Organometallics 2011. [DOI: 10.1021/om1005512] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alireza Ariafard
- Department of Chemistry, Faculty of Science, Central Tehran Branch, Islamic Azad University, Shahrak Gharb, Tehran, Iran
| | - Zeinab Ejehi
- Department of Chemistry, Faculty of Science, Central Tehran Branch, Islamic Azad University, Shahrak Gharb, Tehran, Iran
| | - Hoda Sadrara
- Department of Chemistry, Faculty of Science, Central Tehran Branch, Islamic Azad University, Shahrak Gharb, Tehran, Iran
| | - Tahmineh Mehrabi
- Department of Chemistry, Faculty of Science, Central Tehran Branch, Islamic Azad University, Shahrak Gharb, Tehran, Iran
| | - Shohreh Etaati
- Department of Chemistry, Faculty of Science, Central Tehran Branch, Islamic Azad University, Shahrak Gharb, Tehran, Iran
| | - Azadeh Moradzadeh
- Department of Chemistry, Faculty of Science, Central Tehran Branch, Islamic Azad University, Shahrak Gharb, Tehran, Iran
| | - Mahshid Moshtaghi
- Department of Chemistry, Faculty of Science, Central Tehran Branch, Islamic Azad University, Shahrak Gharb, Tehran, Iran
| | - Hadis Nosrati
- Department of Chemistry, Faculty of Science, Central Tehran Branch, Islamic Azad University, Shahrak Gharb, Tehran, Iran
| | - Nigel J. Brookes
- School of Chemistry, University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
| | - Brian F. Yates
- School of Chemistry, University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
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20
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Bolaño T, Buil ML, Esteruelas MA, Izquierdo S, Lalrempuia R, Oliván M, Oñate E. C−C Bond Activation of the NHC Ligand of an Osmium−Amido Complex. Organometallics 2010. [DOI: 10.1021/om100684a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tamara Bolaño
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - María L. Buil
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Susana Izquierdo
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Ralte Lalrempuia
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Montserrat Oliván
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
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22
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Jeletic MS, Ghiviriga I, Abboud KA, Veige AS. A new chiral di-N-heterocyclic carbene (NHC) cyclophane ligand and its application in palladium enantioselective catalysis. Dalton Trans 2010; 39:6392-4. [DOI: 10.1039/c0dt00268b] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Martincová J, Dostálová R, Dostál L, Růžička A, Jambor R. The Stannylene {2,6-(Me2NCH2)2C6H3}SnCl as a Ligand in Transition Metal Complexes of Palladium, Ruthenium, and Rhodium. Organometallics 2009. [DOI: 10.1021/om900393k] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jana Martincová
- Department of General and Inorganic Chemistry, University of Pardubice, nám. Čs. legií 565, CZ-532 10, Pardubice, Czech Republic
| | - Romana Dostálová
- Department of General and Inorganic Chemistry, University of Pardubice, nám. Čs. legií 565, CZ-532 10, Pardubice, Czech Republic
| | - Libor Dostál
- Department of General and Inorganic Chemistry, University of Pardubice, nám. Čs. legií 565, CZ-532 10, Pardubice, Czech Republic
| | - Aleš Růžička
- Department of General and Inorganic Chemistry, University of Pardubice, nám. Čs. legií 565, CZ-532 10, Pardubice, Czech Republic
| | - Roman Jambor
- Department of General and Inorganic Chemistry, University of Pardubice, nám. Čs. legií 565, CZ-532 10, Pardubice, Czech Republic
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Normand A, Nechaev M, Cavell K. Mechanisms in the Reaction of Palladium(II)-π-Allyl Complexes with Aryl Halides: Evidence for NHC Exchange Between Two Palladium Complexes. Chemistry 2009; 15:7063-73. [DOI: 10.1002/chem.200900373] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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25
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Ariafard A, Yates BF. In-depth insight into the electronic and steric effects of phosphine ligands on the mechanism of the R–R reductive elimination from (PR3)2PdR2. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2009.02.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Saker O, Mahon MF, Warren JE, Whittlesey MK. Sequential Formation of [Ru(IPr)2(CO)H(OH2)]+ and [Ru(IPr)(η6-C6H6)(CO)H]+ upon Protonation of Ru(IPr)2(CO)H(OH) (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene). Organometallics 2009. [DOI: 10.1021/om801150v] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Olly Saker
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K., and SRS Station 9.8 SMX, CCLRC Daresbury Laboratory, Warrington WA4 4AD, U.K
| | - Mary F. Mahon
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K., and SRS Station 9.8 SMX, CCLRC Daresbury Laboratory, Warrington WA4 4AD, U.K
| | - John E. Warren
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K., and SRS Station 9.8 SMX, CCLRC Daresbury Laboratory, Warrington WA4 4AD, U.K
| | - Michael K. Whittlesey
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K., and SRS Station 9.8 SMX, CCLRC Daresbury Laboratory, Warrington WA4 4AD, U.K
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Tukov AA, Normand AT, Nechaev MS. N-heterocyclic carbenes bearing two, one and no nitrogen atoms at the ylidene carbon: insight from theoretical calculations. Dalton Trans 2009:7015-28. [DOI: 10.1039/b906969k] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Jeletic MS, Jan MT, Ghiviriga I, Abboud KA, Veige AS. New iridium and rhodium chiral di-N-heterocyclic carbene (NHC) complexes and their application in enantioselective catalysis. Dalton Trans 2009:2764-76. [DOI: 10.1039/b819524b] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Esposito O, Gois PMP, de K. Lewis AK, Caddick S, Cloke FGN, Hitchcock PB. Alkylpalladium N-Heterocyclic Carbene Complexes: Synthesis, Reactivity, and Catalytic Properties. Organometallics 2008. [DOI: 10.1021/om800455h] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Oriana Esposito
- Department of Chemistry and Biochemistry, School of Life Sciences, University of Sussex, Falmer, Brighton BN1 9QJ, U.K., CQFM, Departamento de Engenharia Química e Biologia, Complexo I, Instituto Superior Técnico, Avenida Rovisco Pais 1, 1049-001 Lisboa, Portugal, and Department of Chemistry, University College London, 20 Gordon Street, London WC1H OAJ, U.K
| | - Pedro M. P. Gois
- Department of Chemistry and Biochemistry, School of Life Sciences, University of Sussex, Falmer, Brighton BN1 9QJ, U.K., CQFM, Departamento de Engenharia Química e Biologia, Complexo I, Instituto Superior Técnico, Avenida Rovisco Pais 1, 1049-001 Lisboa, Portugal, and Department of Chemistry, University College London, 20 Gordon Street, London WC1H OAJ, U.K
| | - Alexandra K. de K. Lewis
- Department of Chemistry and Biochemistry, School of Life Sciences, University of Sussex, Falmer, Brighton BN1 9QJ, U.K., CQFM, Departamento de Engenharia Química e Biologia, Complexo I, Instituto Superior Técnico, Avenida Rovisco Pais 1, 1049-001 Lisboa, Portugal, and Department of Chemistry, University College London, 20 Gordon Street, London WC1H OAJ, U.K
| | - Stephen Caddick
- Department of Chemistry and Biochemistry, School of Life Sciences, University of Sussex, Falmer, Brighton BN1 9QJ, U.K., CQFM, Departamento de Engenharia Química e Biologia, Complexo I, Instituto Superior Técnico, Avenida Rovisco Pais 1, 1049-001 Lisboa, Portugal, and Department of Chemistry, University College London, 20 Gordon Street, London WC1H OAJ, U.K
| | - F. Geoffrey N. Cloke
- Department of Chemistry and Biochemistry, School of Life Sciences, University of Sussex, Falmer, Brighton BN1 9QJ, U.K., CQFM, Departamento de Engenharia Química e Biologia, Complexo I, Instituto Superior Técnico, Avenida Rovisco Pais 1, 1049-001 Lisboa, Portugal, and Department of Chemistry, University College London, 20 Gordon Street, London WC1H OAJ, U.K
| | - Peter B. Hitchcock
- Department of Chemistry and Biochemistry, School of Life Sciences, University of Sussex, Falmer, Brighton BN1 9QJ, U.K., CQFM, Departamento de Engenharia Química e Biologia, Complexo I, Instituto Superior Técnico, Avenida Rovisco Pais 1, 1049-001 Lisboa, Portugal, and Department of Chemistry, University College London, 20 Gordon Street, London WC1H OAJ, U.K
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30
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Normand AT, Stasch A, Ooi LL, Cavell KJ. Design of Cationic Mixed Phosphine/N-Heterocyclic Carbene Palladium(II) π-Allyl Complexes as Monoligated Phosphine Pd(0) Precatalysts: Synthesis, Structural Studies, Catalysis, and Reactivity. Organometallics 2008. [DOI: 10.1021/om8008052] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Adrien T. Normand
- School of Chemistry, Main Building, Cardiff University, Park Place, Cardiff, Wales, U.K., CF10 3AT
| | - Andreas Stasch
- School of Chemistry, Main Building, Cardiff University, Park Place, Cardiff, Wales, U.K., CF10 3AT
| | - Li-Ling Ooi
- School of Chemistry, Main Building, Cardiff University, Park Place, Cardiff, Wales, U.K., CF10 3AT
| | - Kingsley J. Cavell
- School of Chemistry, Main Building, Cardiff University, Park Place, Cardiff, Wales, U.K., CF10 3AT
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31
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Hahn FE, Jahnke MC. Heterocyclic carbenes: synthesis and coordination chemistry. Angew Chem Int Ed Engl 2008; 47:3122-72. [PMID: 18398856 DOI: 10.1002/anie.200703883] [Citation(s) in RCA: 2419] [Impact Index Per Article: 151.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The chemistry of heterocyclic carbenes has experienced a rapid development over the last years. In addition to the imidazolin-2-ylidenes, a large number of cyclic diaminocarbenes with different ring sizes have been described. Aside from diaminocarbenes, P-heterocyclic carbenes, and derivatives with only one, or even no heteroatom within the carbene ring are known. New methods for the synthesis of complexes with N-heterocyclic carbene ligands such as the oxidative addition or the metal atom template controlled cyclization of beta-functionalized isocyanides have been developed recently. This review summarizes the new developments regarding the synthesis of N-heterocyclic carbenes and their metal complexes.
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Affiliation(s)
- F Ekkehardt Hahn
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149 Münster, Germany.
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Diggle RA, Kennedy AA, Macgregor SA, Whittlesey MK. Computational Studies of Intramolecular Carbon−Heteroatom Bond Activation of N-Aryl Heterocyclic Carbene Ligands. Organometallics 2008. [DOI: 10.1021/om701151g] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Richard A. Diggle
- School of Engineering and Physical Sciences, William Perkin Building, Heriot-Watt University, Edinburgh, EH14 4AS, U.K., and Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, U.K
| | - Andrew A. Kennedy
- School of Engineering and Physical Sciences, William Perkin Building, Heriot-Watt University, Edinburgh, EH14 4AS, U.K., and Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, U.K
| | - Stuart A. Macgregor
- School of Engineering and Physical Sciences, William Perkin Building, Heriot-Watt University, Edinburgh, EH14 4AS, U.K., and Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, U.K
| | - Michael K. Whittlesey
- School of Engineering and Physical Sciences, William Perkin Building, Heriot-Watt University, Edinburgh, EH14 4AS, U.K., and Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, U.K
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34
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Diggle RA, Macgregor SA, Whittlesey MK. Computational Study of C−C Activation of 1,3-Dimesitylimidazol-2-ylidene (IMes) at Ruthenium: The Role of Ligand Bulk in Accessing Reactive Intermediates. Organometallics 2008. [DOI: 10.1021/om700977f] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Richard A. Diggle
- School of Engineering and Physical Sciences, William Perkin Building, Heriot-Watt University, Edinburgh, EH14 4AS, U.K., and Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, U.K
| | - Stuart A. Macgregor
- School of Engineering and Physical Sciences, William Perkin Building, Heriot-Watt University, Edinburgh, EH14 4AS, U.K., and Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, U.K
| | - Michael K. Whittlesey
- School of Engineering and Physical Sciences, William Perkin Building, Heriot-Watt University, Edinburgh, EH14 4AS, U.K., and Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, U.K
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35
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Cavell K. N-Heterocyclic carbenes/imidazolium salts as substrates in catalysis: the catalytic 2-substitution and annulation of heterocyclic compounds. Dalton Trans 2008:6676-85. [DOI: 10.1039/b811449h] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Houghton J, Dyson G, Douthwaite RE, Whitwood AC, Kariuki BM. Structural variation, dynamics, and catalytic application of palladium(ii) complexes of di-N-heterocyclic carbene–amine ligands. Dalton Trans 2007:3065-73. [PMID: 17622424 DOI: 10.1039/b703248j] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of palladium(II) complexes incorporating di-NHC-amine ligands has been prepared and their structural, dynamic and catalytic behaviour investigated. The complexes [trans-(kappa(2)-(tBu)CN(Bn)C(tBu))PdCl(2)] (12) and [trans-(kappa(2)-(Mes)CN(H)C(Mes))PdCl(2)] (13) do not exhibit interaction between the amine nitrogen and palladium atom respectively. NMR spectroscopy between -40 and 25 degrees C shows that the di-NHC-amine ligand is flexible expressing C(s) symmetry and for 13 rotation of the mesityl groups is prevented. In the related C(1) complex [(kappa(3)-(tBu)CN(H)C(tBu))PdCl][Cl] (14) coordination of NHC moieties and amine nitrogen atom is observed between -40 and 25 degrees C. Reaction between 12-14 and two equivalents of AgBF(4) in acetonitrile gives the analogous complexes [trans-(kappa(2)-(tBu)CN(Bn)C(tBu))Pd(MeCN)(2)][BF(4)](2) (15), [trans-(kappa(2)-(Mes)CN(H)C(Mes))Pd(MeCN)(2)][BF(4)](2) (16) and [(kappa(3)-(tBu)CN(H)C(tBu))Pd(MeCN)][BF(4)](2) (17) indicating that ligand structure determines amine coordination. The single crystal X-ray structures of 12, 17 and two ligand imidazolium salt precursors (tBu)C(H)N(Bn)C(H)(tBu)][Cl](2) (2) and [(tBu)C(H)N(H)C(H)(tBu)][BPh(4)](2) (4) have been determined. Complexes 12-14 and 15-17 have been shown to be active precatalysts for Heck and hydroamination reactions respectively.
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Nielsen DJ, Cavell KJ, Skelton BW, White AH. Methyl-palladium(II) complexes of pyridine-bridged bis(nucleophilic heterocyclic carbene) ligands: Substituent effects on structure, stability, and catalytic performance. Inorganica Chim Acta 2006. [DOI: 10.1016/j.ica.2005.07.049] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Graham DC, Cavell KJ, Yates BF. The influence of N-substitution on the reductive elimination behaviour of hydrocarbyl–palladium–carbene complexes—a DFT study. Dalton Trans 2006:1768-75. [PMID: 16568186 DOI: 10.1039/b512681a] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reductive elimination of 2-hydrocarbyl-imidazolium salts from hydrocarbyl-palladium complexes bearing N-heterocyclic carbene (NHC) ligands represents an important deactivation route for catalysts of this type. We have explored the influence that carbene N-substituents have on both the activation energy and the overall thermodynamics of the reductive elimination reaction using density functional theory (DFT). Given the proximity of the N-substituent to the three-centred transition structure, steric bulk has little influence on the activation barrier and it is electronic factors that dominate the barriers' magnitude. Increased electron donation from the departing NHC ligand acts to stabilise the associated complex against reductive elimination, with stability following the trend: Cl < H < Ph < Me < Cy < iPr < neopentyl < tBu. The intimate involvement of the carbene p pi-orbital in determining the barrier to reductive elimination means N-substituents that are capable of removing pi-density (e.g. phenyl) act to promote a more facile reductive elimination.
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Affiliation(s)
- David C Graham
- School of Chemistry, University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
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