1
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Meng Q, Zhu B, Sakaki S. Theoretical Study of N-H σ-Bond Activation by Nickel(0) Complex: Reaction Mechanism, Electronic Processes, and Prediction of Better Ligand. Inorg Chem 2022; 61:8715-8728. [PMID: 35621263 DOI: 10.1021/acs.inorgchem.2c00612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
N-H σ-bond activation of alkylamine by Ni(PCy3) was investigated using density functional theory (DFT) calculations. When simple alkylamine NHMe2 is a reactant, both concerted oxidative addition in Ni(PCy3)(NHMe2) and ligand-to-ligand H transfer reaction in Ni(PCy3)(C2H4)(NHMe2) are endergonic and need a high activation energy. When NH(Me)(Bs) (Bs = SO2Ph, a model of tosyl group used in experiments) is a reactant, both reactions are exergonic and occur easily with a much smaller activation energy. The much larger reactivity of NH(Me)(Bs) than that of NHMe2 results from the stronger Ni-N(Me)(Bs) bond than the Ni-NMe2 bond and the presence of the Ni-O bonding interaction between the Bs group and the Ni atom in the product. N-Heterocyclic carbene, 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene (IPr), is computationally predicted to be better than PCy3 because the Ni-NMe2 and Ni-N(Me)(Bs) bonds in the IPr complex are stronger, respectively, than those of the PCy3 complex. The introduction of the electron-withdrawing Bs group to the N atom of amine and the use of IPr as a ligand are recommended for the N-H σ-bond activation. The C-H σ-bond activations of benzene via the oxidative addition and the ligand-to-ligand H transfer reaction were also investigated here for comparison with the N-H σ-bond activation. The differences between the C-H σ-bond activation of benzene and the N-H σ-bond activation of these amines are discussed in terms of the N-H, C-H, Ni-Ph, and Ni-NMe2, and Ni-N(Me)(Bs) bond energies and back-donation to benzene from the Ni atom.
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Affiliation(s)
- Qingxi Meng
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, Shandong 271018, People's Republic of China
| | - Bo Zhu
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, 1-30 Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan
| | - Shigeyoshi Sakaki
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, 1-30 Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan
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2
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Das A, Chatani N. Rh(II)-Catalyzed C-H Alkylation of Benzylamines with Unactivated Alkenes: The Influence of Acid on Linear and Branch Selectivity. Org Lett 2021; 23:4273-4278. [PMID: 33988384 DOI: 10.1021/acs.orglett.1c01224] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The Rh-catalyzed C-H alkylation of benzylamine derivatives with unactivated 1-alkenes that proceeds via a picolinamide directing group is reported. The crucial role of an acid additive in this transformation is confirmed. Aromatic acids showed high linear selectivity, and aliphatic acids provided branched alkylation products as the major product. The reaction has a broad scope for benzylamines and alkenes. Deuterium labeling experiments suggest that a Rh-carbene intermediate is involved in the case of linear product formation. A different reaction pathway, however, appears to be involved in the case of branched alkylation products, and this pathway also appeared to be a minor pathway in linear-selective reactions.
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Affiliation(s)
- Amrita Das
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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3
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Das A, Chatani N. Rh(i)- and Rh(ii)-catalyzed C-H alkylation of benzylamines with alkenes and its application in flow chemistry. Chem Sci 2021; 12:3202-3209. [PMID: 34164088 PMCID: PMC8179371 DOI: 10.1039/d0sc05813k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The Rh-catalyzed C–H alkylation of benzylamines with alkenes using a picolinamide derivative as a directing group is reported. Both Rh(i) and Rh(ii) complexes can be used as active catalysts for this transformation. In addition, a flow set up was designed to successfully mimic this process under flow conditions. Several examples are presented under flow conditions and it was confirmed that a flow process is advantageous over a batch process. Deuterium labelling experiments were performed to elucidate the mechanism of the reaction, and the results indicated a possible carbene mechanism for this C–H alkylation process. Rh(i)- and Rh(ii)-catalyzed C–H alkylation of benzylamines with alkenes using a picolinamide derivative as a directing group is reported under both batch and flow.![]()
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Affiliation(s)
- Amrita Das
- Department of Applied Chemistry, Faculty of Engineering, Osaka University Suita Osaka 565-0871 Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University Suita Osaka 565-0871 Japan
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4
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Liu Y, Ding F, Chen Y, Wu W, He Y. Mechanistic insights into the palladium-catalyzed hydroaminocarbonylation of alkenes. NEW J CHEM 2021. [DOI: 10.1039/d1nj00589h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study gives insights into the ligand-controlled regioselectivity of the palladium catalyzed aminocarbonylation of alkenes with CO and ammonia.
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Affiliation(s)
- Yuhua Liu
- School of Physics and Electronic Engineering
- Guangzhou University
- Guangzhou
- China
| | - Feiqing Ding
- School of Pharmaceutical Sciences(Shenzhen)
- Sun Yat-sen University
- Guangzhou
- China
| | - Yixing Chen
- School of Physics and Electronic Engineering
- Guangzhou University
- Guangzhou
- China
| | - Wenji Wu
- School of Physics and Electronic Engineering
- Guangzhou University
- Guangzhou
- China
| | - Yusen He
- School of Physics and Electronic Engineering
- Guangzhou University
- Guangzhou
- China
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5
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Guo J, Pham HD, Wu YB, Zhang D, Wang X. Mechanism of Cobalt-Catalyzed Direct Aminocarbonylation of Unactivated Alkyl Electrophiles: Outer-Sphere Amine Substitution To Form Amide Bond. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04736] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jiandong Guo
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Boulevard, Nanshan District, Shenzhen 518055, P. R. China
- Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Hai D. Pham
- Department of Chemistry, University of Colorado Denver, Campus Box 194, P.O. Box 173364, Denver, Colorado 80217-3364, United States
| | - Yan-Bo Wu
- Institute of Molecular Science, Shanxi University, Taiyuan 030006, P. R. China
| | - Dongju Zhang
- Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Xiaotai Wang
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Boulevard, Nanshan District, Shenzhen 518055, P. R. China
- Department of Chemistry, University of Colorado Denver, Campus Box 194, P.O. Box 173364, Denver, Colorado 80217-3364, United States
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6
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Yamaguchi T, Natsui S, Shibata K, Yamazaki K, Rej S, Ano Y, Chatani N. Rhodium-Catalyzed Alkylation of C-H Bonds in Aromatic Amides with Non-activated 1-Alkenes: The Possible Generation of Carbene Intermediates from Alkenes. Chemistry 2019; 25:6915-6919. [PMID: 30900353 DOI: 10.1002/chem.201901300] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Indexed: 12/31/2022]
Abstract
The alkylation of C-H bonds (hydroarylation) in aromatic amides with non-activated 1-alkenes using a rhodium catalyst and assisted by an 8-aminoquinoline directing group is reported. The addition of a carboxylic acid is crucial for the success of this reaction. The results of deuterium-labeling experiments indicate that one of deuterium atoms in the alkene is missing, suggesting that the reaction does not proceed through the commonly accepted mechanism for C-H alkylation reactions. Instead the reaction is proposed to proceed through a carbene mechanism. The carbene mechanism is also supported by preliminary DFT calculations.
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Affiliation(s)
- Takuma Yamaguchi
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Satoko Natsui
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Kaname Shibata
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Ken Yamazaki
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Supriya Rej
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Yusuke Ano
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
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7
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Ghosh S, Banerjee P, Nandi PK. Heterolytic N H bond activation of ammonia by dinuclear [{M(μ-OMe)}2] complexes (M = Sc – V and Mn – Ni): A theoretical investigation. COMPUT THEOR CHEM 2018. [DOI: 10.1016/j.comptc.2018.11.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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He Q, Chatani N. A Synthesis of 3,4-Dihydroisoquinolin-1(2H)-one via the Rhodium-Catalyzed Alkylation of Aromatic Amides with N-Vinylphthalimide. J Org Chem 2018; 83:13587-13594. [DOI: 10.1021/acs.joc.8b02249] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Qiyuan He
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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9
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Rej S, Chatani N. Rhodium(I)-Catalyzed C8-Alkylation of 1-Naphthylamide Derivatives with Alkenes through a Bidentate Picolinamide Chelation System. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01675] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Supriya Rej
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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10
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Chatani N. The Use of a Rhodium Catalyst/8-Aminoquinoline Directing Group in the C-H Alkylation of Aromatic Amides with Alkenes: Possible Generation of a Carbene Intermediate from an Alkene. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20170316] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871
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11
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Munarriz J, Velez E, Casado MA, Polo V. Understanding the reaction mechanism of the oxidative addition of ammonia by (PXP)Ir(i) complexes: the role of the X group. Phys Chem Chem Phys 2018; 20:1105-1113. [PMID: 29238771 DOI: 10.1039/c7cp07453k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
An analysis of the electronic rearrangements for the oxidative addition of ammonia to a set of five representative (PXP)Ir pincer complexes (X = B, CH, O, N, SiH) is performed. We aim to understand the factors controlling the activation and reaction energies of this process by combining different theoretical strategies based on DFT calculations. Interestingly, complexes featuring higher activation barriers yield more exothermic reactions. The analysis of the reaction path using the bonding evolution theory shows that the main chemical events, N-H bond cleavage and Ir-H bond formation, take place before the transition structure is reached. Metal oxidation implies an electron density transfer from non-shared Ir pairs to the Ir-N bond. This decrement in the atomic charge of the metal provokes different effects in the ionic contribution of the Ir-X bonding depending on the nature of the X atom as shown by the interacting quantum atoms methodology.
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Affiliation(s)
- J Munarriz
- Departamento de Química Física and Instituto de Biocomputación y Física de los Sistemas Complejos (BIFI), Universidad de Zaragoza, 50009, Zaragoza, Spain.
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12
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Yu Y, Yu H, Kang X, Wang X, Yang J, Qu J, Luo Y. H–H and N–H Bond Cleavages of Dihydrogen and Ammonia by a Bifunctional Imido (NH)-Bridged Diiridium Complex: A DFT Study. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yang Yu
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Hang Yu
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Xiaohui Kang
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Xingbao Wang
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Jimin Yang
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Jingping Qu
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Yi Luo
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People’s Republic of China
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13
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Mena I, García-Orduña P, Polo V, Lahoz FJ, Casado MA, Oro LA. Reactivity of the parent amido complexes of iridium with olefins: C-NH 2 bond formation versus C-H activation. Dalton Trans 2017; 46:11459-11468. [PMID: 28820211 DOI: 10.1039/c7dt01924f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we report on the different chemical reactivity displayed by two mononuclear terminal amido compounds depending on the nature of the coordinated diene. Hence, treatment of amido-bridged iridium complexes [{Ir(μ-NH2)(tfbb)}3] (1; tfbb = tetrafluorobenzobarrelene) with dppp (dppp = bis(diphenylphosphane)propane) leads to the rupture of the amido bridges forming the mononuclear terminal amido compound [Ir(NH2)(dppp)(tfbb)] (3) in the first stage. On changing the reaction conditions, the formation of a C-NH2 bond between the amido moiety and the coordinated diene is observed and a new dinuclear complex [{Ir(1,2-η2-4-κ-C12H8F4N)(dppp)}2(μ-dppp)] (4) has been isolated. On the contrary, the diiridium amido-bridged complex [{Ir(μ-NH2)(cod)}2] (2; cod = 1,5-cyclooctadiene) in the presence of dppb (dppb = bis(diphenylphosphane)butane) allows the isolation of a mononuclear complex [Ir(1,2,3-η3-6-κ-C8H10)H(dppb)] (5), as a consequence of the extrusion of ammonia. The monitoring of the reaction of 2 with dppb (and dppp) allowed us to detect terminal amido complexes [Ir(NH2)(P-P)(cod)] (P-P = dppb (6), dppp (7)) in solution, as confirmed by an X-ray analysis of 7. Complex 7 was observed to evolve into hydrido species 5 at room temperature. DFT studies showed that C-H bond activation occurs through the deprotonation of one methylene fragment of the cod ligand by the highly basic terminal amido moiety instead of C-H oxidative addition to the Ir(i) center.
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Affiliation(s)
- Inmaculada Mena
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH, Universidad de Zaragoza-CSIC, C/Pedro Cerbuna, 12, 50009, Zaragoza, Spain.
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14
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Luo G, Luo Y, Hou Z. E–H (E = N and P) Bond Activation of PhEH2 by a Trinuclear Yttrium Methylidene Complex: Theoretical Insights into Mechanism and Multimetal Cooperation Behavior. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00443] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gen Luo
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, PR China
- RIKEN
Center for Sustainable Resource Science and Organometallic Chemistry
Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yi Luo
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, PR China
| | - Zhaomin Hou
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, PR China
- RIKEN
Center for Sustainable Resource Science and Organometallic Chemistry
Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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15
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Juribašić Kulcsár M, Halasz I, Budimir A, Užarević K, Lukin S, Monas A, Emmerling F, Plavec J, Ćurić M. Reversible Gas–Solid Ammonia N–H Bond Activation Mediated by an Organopalladium Complex. Inorg Chem 2017; 56:5342-5351. [DOI: 10.1021/acs.inorgchem.7b00422] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Marina Juribašić Kulcsár
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička 54, HR−10000 Zagreb, Croatia
| | - Ivan Halasz
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička 54, HR−10000 Zagreb, Croatia
| | - Ana Budimir
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića
1, HR−10000 Zagreb, Croatia
| | - Krunoslav Užarević
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička 54, HR−10000 Zagreb, Croatia
| | - Stipe Lukin
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička 54, HR−10000 Zagreb, Croatia
| | - Andrea Monas
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička 54, HR−10000 Zagreb, Croatia
| | - Franziska Emmerling
- BAM Federal Institute for Materials Research and Testing, Richard-Willstätter Str. 11, 12489 Berlin, Germany
| | - Janez Plavec
- Slovenian NMR Center, National Institute of Chemistry, Hajdrihova
19, SI−1000 Ljubljana, Slovenia
| | - Manda Ćurić
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička 54, HR−10000 Zagreb, Croatia
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16
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Pilar Betoré M, García‐Orduña P, Lahoz FJ, Casado MA, Polo V, Oro LA. C–N Bond Coupling Reactions of Ammonia with Acetone Promoted by Iridium and Rhodium Complexes: Experimental and DFT Studies. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600925] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- M. Pilar Betoré
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
| | - Pilar García‐Orduña
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
| | - Fernando J. Lahoz
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
| | - Miguel A. Casado
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
| | - Víctor Polo
- Departamento de Química Física e Instituto de Biocomputación y Física de Sistemas Complejos (BIFI) Universidad de Zaragoza Zaragoza Spain
| | - Luis A. Oro
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
- Centre of Research Excellence in Petroleum and Petrochemicals King Fahd University of Petroleum & Minerals 31261 Dhahran Saudi Arabia
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17
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Betoré MP, Casado MA, García‐Orduña P, Lahoz FJ, Polo V, Oro LA. 2,5‐Norbornadiene C–C Coupling Reactions Mediated by Iridium Complexes. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600336] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Pilar Betoré
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
| | - Miguel A. Casado
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
| | - Pilar García‐Orduña
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
| | - Fernando J. Lahoz
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
| | - Víctor Polo
- Departamento de Química Física e Instituto de Biocomputación y Física de Sistemas Complejos (BIFI) Universidad de Zaragoza Zaragoza Spain
| | - Luis A. Oro
- Instituto de Síntesis Química y Catálisis Homogénea ISQCH Departamento de Química Inorgánica Universidad de Zaragoza – CSIC C/Pedro Cerbuna, 12 50009 Zaragoza Spain
- Centre of Research Excellence in Petroleum and Petrochemicals King Fahd University of Petroleum & Minerals 31261 Dhahran Saudi Arabia
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18
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Betoré MP, Casado MA, García-Orduña P, Lahoz FJ, Polo V, Oro LA. Oxidative Addition of the N–H Bond of Ammonia to Iridium Bis(phosphane) Complexes: A Combined Experimental and Theoretical Study. Organometallics 2016. [DOI: 10.1021/acs.organomet.5b01014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M. Pilar Betoré
- Instituto
de Síntesis Química y Catálisis Homogénea
(ISQCH), Departamento de Química Inorgánica, CSIC-Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Miguel A. Casado
- Instituto
de Síntesis Química y Catálisis Homogénea
(ISQCH), Departamento de Química Inorgánica, CSIC-Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Pilar García-Orduña
- Instituto
de Síntesis Química y Catálisis Homogénea
(ISQCH), Departamento de Química Inorgánica, CSIC-Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Fernando J. Lahoz
- Instituto
de Síntesis Química y Catálisis Homogénea
(ISQCH), Departamento de Química Inorgánica, CSIC-Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Víctor Polo
- Departamento
de Química Física and Instituto de Biocomputación
y Física de los Sistemas Complejos (BIFI), Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Luis A. Oro
- Instituto
de Síntesis Química y Catálisis Homogénea
(ISQCH), Departamento de Química Inorgánica, CSIC-Universidad de Zaragoza, c/Pedro Cerbuna 12, 50009, Zaragoza, Spain
- Center of Research Excellence in Petroleum Refining & Petrochemicals, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
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Shibata K, Chatani N. Rhodium-catalyzed regioselective addition of the ortho C-H bond in aromatic amides to the C-C double bond in α,β-unsaturated γ-lactones and dihydrofurans. Chem Sci 2016; 7:240-245. [PMID: 29861979 PMCID: PMC5952307 DOI: 10.1039/c5sc03110a] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 09/24/2015] [Indexed: 11/21/2022] Open
Abstract
An unprecedented C-H alkylation using α,β-unsaturated γ-lactones (butenolides) and dihydrofurans was achieved by the Rh-catalyzed reaction of benzamides. C-C bond formation occurs between the ortho-position of the benzamide derivative and the γ-position of the butenolide or the α-position of the dihydrofuran. The presence of an 8-aminoquinoline directing group is crucial for the success of the reaction. The results of deuterium labeling experiments indicate that the cleavage of the C-H bond is reversible and suggest that a migratory carbene insertion is involved as the key step.
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Affiliation(s)
- Kaname Shibata
- Department of Applied Chemistry , Faculty of Engineering , Osaka University , Suita , Osaka 565-0871 , Japan .
| | - Naoto Chatani
- Department of Applied Chemistry , Faculty of Engineering , Osaka University , Suita , Osaka 565-0871 , Japan .
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Wang DY, Choliy Y, Haibach MC, Hartwig JF, Krogh-Jespersen K, Goldman AS. Assessment of the Electronic Factors Determining the Thermodynamics of "Oxidative Addition" of C-H and N-H Bonds to Ir(I) Complexes. J Am Chem Soc 2015; 138:149-63. [PMID: 26652221 DOI: 10.1021/jacs.5b09522] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A study of electronic factors governing the thermodynamics of C-H and N-H bond addition to Ir(I) complexes was conducted. DFT calculations were performed on an extensive series of trans-(PH3)2IrXL complexes (L = NH3 and CO; X = various monodentate ligands) to parametrize the relative σ- and π-donating/withdrawing properties of the various ligands, X. Computed energies of oxidative addition of methane to a series of three- and four-coordinate Ir(I) complexes bearing an ancillary ligand, X, were correlated with the resulting (σ(X), π(X)) parameter set. Regression analysis indicates that the thermodynamics of addition of methane to trans-(PH3)2IrX are generally strongly disfavored by increased σ-donation from the ligand X, in contradiction to widely held views on oxidative addition. The trend for oxidative addition of methane to four-coordinate Ir(I) was closely related to that observed for the three-coordinate complexes, albeit slightly more complicated. The computational analysis was found to be consistent with the rates of reductive elimination of benzene from a series of isoelectronic Ir(III) phenyl hydride complexes, measured experimentally in this work and previously reported. Extending the analysis of ancillary ligand energetic effects to the oxidative addition of ammonia to three-coordinate Ir(I) complexes leads to the conclusion that increasing σ-donation by X also disfavors oxidative addition of N-H bonds to trans-(PH3)2IrX. However, coordination of NH3 to the Ir(I) center is disfavored even more strongly by increasing σ-donation by X, which explains why the few documented examples of H-NH2 oxidative addition to transition metals involve complexes with strongly σ-donating ligands situated trans to the site of addition. An orbital-based rationale for the observed results is presented.
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Affiliation(s)
- David Y Wang
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey , New Brunswick, New Jersey 08903, United States
| | - Yuriy Choliy
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey , New Brunswick, New Jersey 08903, United States
| | - Michael C Haibach
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey , New Brunswick, New Jersey 08903, United States
| | - John F Hartwig
- Department of Chemistry, University of California, Berkeley , Berkeley, California 94720-1460, United States
| | - Karsten Krogh-Jespersen
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey , New Brunswick, New Jersey 08903, United States
| | - Alan S Goldman
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey , New Brunswick, New Jersey 08903, United States
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