1
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Wehmeyer FU, Langer R. A hampered oxidative addition of pre-coordinated pincer ligands can favour alternative pathways of activation. Chem Commun (Camb) 2023; 59:6004-6007. [PMID: 37114407 DOI: 10.1039/d3cc00874f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Pre-coordination to a transition metal by the terminal donor groups of a tri-dentate ligand is a common strategy to stabilise elusive groups, to achieve unprecedented bond activation and to develop novel modes of metal-ligand-cooperation for catalysis. In the current manuscript, we demonstrate that the oxidative addition of a central E-H-bond after pre-coordination to the metal centre is disfavoured for metals with d10 electron configuration. For exemplary pincer ligands and metals with d10 electron configuration, quantum chemical calculations suggest a second barrier, which is associated with the rearrangement of the saw-horse structure, obtained after oxidative addition, to the expected square planar geometry for the resulting d8 electron configuration. In the case of PBP-type ligands with a central L2BH2-group (L = R3P) the reaction with Pt0 precursors proceeds via an alternative pathway of activation, which involves the backside attack of a nucleophile to the boron atom, which facilitates the nucleophilic attack of the Pt0 centre and formation of a boryl complex (LBH2). As the corresponding reaction with a PtII precursor leads to B-H- instead of B-L-activation and formation of complex 2 with a L2BH donor, our results show that ligand-stabilized borylenes (L2BH) can in principle be converted to boryls (LBH2) via boronium salts (L2BH2+).
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Affiliation(s)
- Frerk-Ulfert Wehmeyer
- Institute of Chemistry, Faculty of Natural Sciences II, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany.
| | - Robert Langer
- Institute of Chemistry, Faculty of Natural Sciences II, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany.
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2
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Gordon BM, Parihar A, Hasanayn F, Goldman AS. High Activity and Selectivity for Catalytic Alkane–Alkene Transfer (De)hydrogenation by ( tBuPPP)Ir and the Importance of Choice of a Sacrificial Hydrogen Acceptor. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Benjamin M. Gordon
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Ashish Parihar
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Faraj Hasanayn
- Department of Chemistry, American University of Beirut, Beirut 1107 2020, Lebanon
| | - Alan S. Goldman
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
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3
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Chang J, Ding M, Kang JX, Zhang J, Chen X. Coordination mode and stability of the tetrahydroborate ligand in group 10 metal pincer complexes. Dalton Trans 2022; 51:11507-11514. [PMID: 35833572 DOI: 10.1039/d2dt01357f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The coordination mode of the BH4- ligand in transition metal tetrahydroborate complexes is mainly dominated by the nature of the metal centres. However, other factors can also play important roles sometimes. In order to rationalize the coordination modes and the stability of the BH4- ligand in group 10 metal tetrahydroborate pincer complexes, [2,6-(tBu2PO)2C6H3]Pt(η1-HBH3) and [C6H4-o-(NCH2PtBu2)2B]M(η2-H2BH2) (M = Ni, Pt) were prepared and characterized. A structural comparison of [2,6-(tBu2PCH2)2C6H3]Ni(BH4), [2,6-(tBu2PO)2C6H3]M(BH4) and [C6H4-o-(NCH2PtBu2)2B]M(BH4) (M = Ni, Pd, and Pt) indicates that the M-P bond length, the P-M-P bite angle and the trans-influence of the central atom in the pincer platform also affect the coordination mode of the BH4- ligand. The nickel complexes tend to adopt a monodentate coordination mode while the palladium and platinum complexes can adopt either the monodentate or the bidentate mode depending on the structural features of the pincer platforms. Longer M-P bonds and smaller P-M-P bite angles favour the bidentate mode. The stability of the BH4- ligand is influenced by both the coordination mode and the nature of the metal centre. The BH3 species is released more easily from complexes with less electron rich metal centres. Following the series of Ni, Pd, and Pt, complexes with the same pincer ligand more easily lose a BH3 moiety.
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Affiliation(s)
- Jiarui Chang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Man Ding
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Jia-Xin Kang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Jie Zhang
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Xuenian Chen
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China. .,College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan 450001, China
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4
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Spielvogel KD, Durgaprasad G, Daly SR. Configurational Flexibility of a Triaryl-Supported SBS Ligand with Rh and Ir: Structural Investigations and Olefin Isomerization Catalysis. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kyle D. Spielvogel
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242-1294, United States
| | - Gummadi Durgaprasad
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242-1294, United States
- Department of Chemistry, RGUKT-AP, IIIT-Ongole, Andhra Pradesh 523225, India
| | - Scott R. Daly
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242-1294, United States
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5
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Seidel FW, Nozaki K. Cationic and Neutral Iridium(III) Hydride Complexes Supported by a Rigid, Bidentate Boryl/Phosphine Ligand. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Falk William Seidel
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kyoko Nozaki
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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6
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Semba K, Shimoura F, Nakao Y. Synthesis and Reactivity of Heterobimetallic Co-PAlP Pincer Complexes. CHEM LETT 2022. [DOI: 10.1246/cl.220008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Kazuhiko Semba
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510
| | - Fumiya Shimoura
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510
| | - Yoshiaki Nakao
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510
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7
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Affiliation(s)
- Naofumi Hara
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Kazuhiko Semba
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Yoshiaki Nakao
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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8
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Cao Y, Shih WC, Bhuvanesh N, Zhou J, Ozerov OV. Cooperative C-H activation of pyridine by PBP complexes of Rh and Ir can lead to bridging 2-pyridyls with different connectivity to the B-M unit. Chem Sci 2021; 12:14167-14173. [PMID: 34760201 PMCID: PMC8565379 DOI: 10.1039/d1sc01850g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 10/04/2021] [Indexed: 11/21/2022] Open
Abstract
Pyridine and quinoline undergo selective C–H activation in the 2-position with Rh and Ir complexes of a boryl/bis(phosphine) PBP pincer ligand, resulting in a 2-pyridyl bridging the transition metal and the boron center. Examination of this reactivity with Rh and Ir complexes carrying different non-pincer ligands on the transition metal led to the realization of the possible isomerism derived from the 2-pyridyl fragment connecting either via B–N/C–M bonds or via B–C/N–M bonds. This M–C/M–N isomerism was systematically examined for four structural types. Each of these types has a defined set of ligands on Rh/Ir besides 2-pyridyl and PBP. A pair of M–C/M–N isomers for each type was computationally examined for Rh and for Ir, totaling 16 compounds. Several of these compounds were isolated or observed in solution by experimental methods, in addition to a few 2-quinolyl variants. The DFT predictions concerning the thermodynamic preference within each M–C/M–N isomeric match the experimental findings very well. In two cases where DFT predicts <2 kcal mol−1 difference in free energy, both isomers were experimentally observed in solution. Analysis of the structural data, of the relevant Wiberg bond indices, and of the ETS-NOCV partitioning of the interaction of the 2-pyridyl fragment with the rest of the molecule points to the strength of the M–C(pyridyl) bond as the dominant parameter determining the relative M–C/M–N isomer favorability. This M–C bond is always stronger for the analogous Ir vs. Rh compounds, but the nature of the ligand trans to it has a significant influence, as well. DFT calculations were used to evaluate the mechanism of isomerization for one of the molecule types. The thermodynamic preference between two isomeric products of C–H activation of pyridine, with 2-pyridyl bridging boron and iridium or rhodium, primarily depends on the M–C bond strength.![]()
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Affiliation(s)
- Yihan Cao
- Department of Chemistry, Texas A&M University 3255 TAMU College Station Texas 77842 USA
| | - Wei-Chun Shih
- Department of Chemistry, Texas A&M University 3255 TAMU College Station Texas 77842 USA
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A&M University 3255 TAMU College Station Texas 77842 USA
| | - Jia Zhou
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology Harbin 150090 China
| | - Oleg V Ozerov
- Department of Chemistry, Texas A&M University 3255 TAMU College Station Texas 77842 USA
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9
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Li QZ, Hara N, Semba K, Nakao Y, Sakaki S. Rh Complex with Unique Rh–Al Direct Bond: Theoretical Insight into its Characteristic Features and Application to Catalytic Reaction via σ-Bond Activation. Top Catal 2021. [DOI: 10.1007/s11244-021-01491-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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10
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Hara N, Yamamoto K, Tanaka Y, Saito T, Sakaki S, Nakao Y. Synthesis, Electronic Properties, and Lewis Acidity of Rhodium Complexes Bearing X-Type PBP, PAlP, and PGaP Pincer Ligands. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210068] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Naofumi Hara
- Department of Material Chemistry, Institution Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Konosuke Yamamoto
- Department of Material Chemistry, Institution Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Yuuki Tanaka
- Department of Material Chemistry, Institution Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Teruhiko Saito
- Department of Material Chemistry, Institution Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Shigeyoshi Sakaki
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Kyoto 615-8510, Japan
| | - Yoshiaki Nakao
- Department of Material Chemistry, Institution Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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11
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Lai Q, Bhuvanesh N, Ozerov OV. Unexpected B/Al Transelementation within a Rh Pincer Complex. J Am Chem Soc 2020; 142:20920-20923. [DOI: 10.1021/jacs.0c09344] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Qingheng Lai
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas 77842, United States
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas 77842, United States
| | - Oleg V. Ozerov
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas 77842, United States
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12
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Li QZ, Hara N, Nakao Y, Sakaki S. Coordination Flexibility of the Rh(PXP) Complex to NH 3, CO, and C 2H 4 (PXP = Diphosphine-Based Pincer Ligand; X = B, Al, and Ga): Theoretical Insight. Inorg Chem 2020; 59:15862-15876. [PMID: 33054207 DOI: 10.1021/acs.inorgchem.0c02390] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The recently synthesized rhodium-aluminum bimetallic complex Rh(PAlP) 1 (PAlP = pincer-type diphosphino-aluminyl ligand Al{[N(C6H4)]2NMe}[CH2P(iPr)2]2) containing a unique Rh-Al direct bond exhibits coordination flexibility because Rh and Al can play the role of coordination site for the substrate. DFT calculations of NH3, CO, and C2H4 adducts with 1 show that the Rh atom is favorable for all these substrate but the Al atom is as favorable as the Rh atom for NH3 and unfavorable for CO and C2H4. NH3 and CO prefer the coordination at the Rh-axial (Ax) site to the Rh-equatorial (Eq) site, but C2H4 prefers coordination at the Rh-Eq site to the Rh-Ax site. Consequently, two CO and C2H4 molecules coordinate with 1 at the Rh-Ax and Rh-Eq sites to afford trigonal bipyramidal complexes Rh(PAlP)(CO)2 and Rh(PAlP)(C2H4)2, which is consistent with the experimental observation of Rh(PAlP)(CO)2. Energy decomposition analysis reveals that an electrostatic term plays an important role for NH3 coordination with the Al atom of 1, because Al has a significantly large positive charge and NH3 has a much negatively charged N atom and exhibits a considerably negative electrostatic potential at the Al position. In B and Ga analogues Rh(PBP) 2 and Rh(PGaP) 3, B and Ga atoms are not good for CO and C2H4 like the Al atom in 1. NH3 adducts with 2 and 3 at the B and Ga sites are less stable than those adducts at the Rh-Ax site unlike the NH3 adduct with 1 at the Al site. This difference in the NH3 adduct between Rh(PAlP) and others (Rh(PBP) and Rh(PGaP)) arises from much less positive charges of B and Ga and a smaller atomic size of B than that of Al. These results indicate that the significantly large electropositive nature and appropriate atomic size of Al are responsible for the characteristic coordination flexibility of Rh(PAlP).
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Affiliation(s)
- Qiao-Zhi Li
- Fukui Institute for Fundamental Chemistry, Kyoto University, Takano-Nishi-hiraki-cho 34-4, Sakyo-ku, Kyoto 606-8103, Japan
| | - Naofumi Hara
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Yoshiaki Nakao
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Shigeyoshi Sakaki
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Goryo-Ohara 1-30, Nishikyo-ku, Kyoto 615-8510, Japan
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13
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Cao Y, Shih WC, Bhuvanesh N, Ozerov OV. Reversible addition of ethylene to a pincer-based boryl-iridium unit with the formation of a bridging ethylidene. Chem Sci 2020; 11:10998-11002. [PMID: 34094348 PMCID: PMC8162418 DOI: 10.1039/d0sc04748a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
This report examines reactions of a series of Ir complexes supported by the diarylboryl/bis(phosphine) PBP pincer ligand with ethylene: (PBP)IrH4 (1), (PBP)IrH2(CO) (2), and (PBP)Ir(CO)2 (3). The outcomes of these reactions differ from those typical for Ir complexes supported by other pincer ligands and do not give rise to simple ethylene adducts or products of insertion of Ir into the C–H bond of ethylene. Instead, the elements of ethylene are incorporated into the molecules to result in B–C bonds. In the case of 2 and 3, ethylene addition results in the formation of B/Ir bridging ethylidene complexes 5 and 6. For 6, the addition of ethylene (and the analogous addition of 1-hexene) is shown to be partially reversible. Addition of ethylene to 2 and 3 is remarkable because they are saturated at Ir and yet the net outcome is such that ethylene binds without replacing any ligands already present. A mechanistic inquiry suggests that dissociation of CO from 3 or 6 is necessary in order for the addition or loss of ethylene to proceed. (PBP)Ir pincer complexes containing a boryl-iridium linkage reversibly bind ethylene as an ethylidene bridging B and Ir.![]()
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Affiliation(s)
- Yihan Cao
- Department of Chemistry, Texas A&M University 3255 TAMU, College Station Texas 77842 USA
| | - Wei-Chun Shih
- Department of Chemistry, Texas A&M University 3255 TAMU, College Station Texas 77842 USA
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A&M University 3255 TAMU, College Station Texas 77842 USA
| | - Oleg V Ozerov
- Department of Chemistry, Texas A&M University 3255 TAMU, College Station Texas 77842 USA
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14
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Takaya J. Catalysis using transition metal complexes featuring main group metal and metalloid compounds as supporting ligands. Chem Sci 2020; 12:1964-1981. [PMID: 34163959 PMCID: PMC8179324 DOI: 10.1039/d0sc04238b] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 09/09/2020] [Indexed: 12/15/2022] Open
Abstract
Recent development in catalytic application of transition metal complexes having an M-E bond (E = main group metal or metalloid element), which is stabilized by a multidentate ligand, is summarized. Main group metal and metalloid supporting ligands furnish unusual electronic and steric environments and molecular functions to transition metals, which are not easily available with standard organic supporting ligands such as phosphines and amines. These characteristics often realize remarkable catalytic activity, unique product selectivity, and new molecular transformations. This perspective demonstrates the promising utility of main group metal and metalloid compounds as a new class of supporting ligands for transition metal catalysts in synthetic chemistry.
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Affiliation(s)
- Jun Takaya
- Department of Chemistry, Tokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8551 Japan
- JST, PRESTO Honcho Kawaguchi Saitama 332-0012 Japan
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15
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Affiliation(s)
- Matthias Vogt
- Institute of Chemistry Faculty of Natural Science II Martin Luther University Halle‐Wittenberg Kurt‐Mothes‐Str. 2 06120 Halle (Saale) Germany
| | - Robert Langer
- Institute of Chemistry Faculty of Natural Science II Martin Luther University Halle‐Wittenberg Kurt‐Mothes‐Str. 2 06120 Halle (Saale) Germany
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16
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Abstract
Our planet urgently needs sustainable solutions to alleviate the anthropogenic global warming and climate change. Homogeneous catalysis has the potential to play a fundamental role in this process, providing novel, efficient, and at the same time eco-friendly routes for both chemicals and energy production. In particular, pincer-type ligation shows promising properties in terms of long-term stability and selectivity, as well as allowing for mild reaction conditions and low catalyst loading. Indeed, pincer complexes have been applied to a plethora of sustainable chemical processes, such as hydrogen release, CO2 capture and conversion, N2 fixation, and biomass valorization for the synthesis of high-value chemicals and fuels. In this work, we show the main advances of the last five years in the use of pincer transition metal complexes in key catalytic processes aiming for a more sustainable chemical and energy production.
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17
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Budweg S, Junge K, Beller M. Catalytic oxidations by dehydrogenation of alkanes, alcohols and amines with defined (non)-noble metal pincer complexes. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00699h] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present review highlights the latest developments in the field of transition metal-catalysed oxidations, in particular C–C–, C–O– and C–N-bond dehydrogenations.
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Affiliation(s)
- Svenja Budweg
- Leibniz-Institut für Katalyse e.V
- Rostock 18059
- Germany
| | - Kathrin Junge
- Leibniz-Institut für Katalyse e.V
- Rostock 18059
- Germany
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18
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Ding Y, Ma QQ, Kang J, Zhang J, Li S, Chen X. Palladium(ii) complexes supported by PBP and POCOP pincer ligands: a comparison of their structure, properties and catalytic activity. Dalton Trans 2019; 48:17633-17643. [PMID: 31755493 DOI: 10.1039/c9dt03954f] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A Pd(ii) chloride complex supported by a Yamashita-Nozaki PBP pincer ligand, [C6H4-1,2-(NCH2PtBu2)2B]PdCl (1a), was synthesized. The structure, properties and catalytic activity of complex 1a were compared with those of the corresponding POCOP pincer complex [C6H3-2,6-(OPtBu2)2]PdCl (2a). It was found that the Pd centre in complex 1a is more electron rich and easier to be oxidized than that in complex 2a; complex 1a is a much better catalyst for Suzuki-Miyaura cross-coupling reactions than complex 2a. Starting from complexes 1a and 2a, two series of Pd(ii) pincer complexes bearing a SH, BH4, N[combining low line]CS, N[combining low line]CSe or N3 covalent ligand, [C6H4-1,2-(NCH2PtBu2)2B]PdY (Y = SH, 1b; BH4; 1c; N[combining low line]CS, 1d; N[combining low line]CSe, 1e; and N3, 1f) and [C6H3-2,6-(OPtBu2)2]PdY (Y = SH, 2b; BH4, 2c; N[combining low line]CS, 2d; N[combining low line]CSe, 2e; and N3, 2f), were synthesized and fully characterized. Single crystal X-ray diffraction analysis indicated that the Pd centre is less tightly chelated in PBP pincer complexes. The strong σ-donor ability of the PBP pincer ligand has little influence on the structure of the covalent ligand possessing both σ-donor and π-acceptor properties. However, the stretching vibrational frequencies of N[combining low line]CS, N[combining low line]CSe and N3 ligands and the coordination mode of the BH4 ligand are significantly different in these two types of palladium pincer complexes.
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Affiliation(s)
- Yazhou Ding
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
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19
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Yamada R, Iwasawa N, Takaya J. Rhodium-Catalyzed C-H Activation Enabled by an Indium Metalloligand. Angew Chem Int Ed Engl 2019; 58:17251-17254. [PMID: 31559666 DOI: 10.1002/anie.201910197] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 09/06/2019] [Indexed: 12/22/2022]
Abstract
Rhodium complexes with an indium metalloligand were successfully synthesized by utilizing a pyridine-tethered cyclopentadienyl ligand as a support for an In-Rh bond. The indium metalloligand dramatically changes the electronic and redox properties of the rhodium metal, thereby enabling catalysis of sp2 C-H bond activation.
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Affiliation(s)
- Ryosuke Yamada
- Department of Chemistry, School of Science, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Nobuharu Iwasawa
- Department of Chemistry, School of Science, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Jun Takaya
- Department of Chemistry, School of Science, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8551, Japan.,JST, PRESTO, Honcho, Kawaguchi, Saitama, 332-0012, Japan
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Yamada R, Iwasawa N, Takaya J. Rhodium‐Catalyzed C−H Activation Enabled by an Indium Metalloligand. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910197] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Ryosuke Yamada
- Department of Chemistry School of Science Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8551 Japan
| | - Nobuharu Iwasawa
- Department of Chemistry School of Science Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8551 Japan
| | - Jun Takaya
- Department of Chemistry School of Science Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8551 Japan
- JST, PRESTO, Honcho Kawaguchi Saitama 332-0012 Japan
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21
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Takaya J, Hoshino M, Ueki K, Saito N, Iwasawa N. Synthesis, structure, and reactivity of pincer-type iridium complexes having gallyl- and indyl-metalloligands utilizing 2,5-bis(6-phosphino-2-pyridyl)pyrrolide as a new scaffold for metal-metal bonds. Dalton Trans 2019; 48:14606-14610. [PMID: 31549112 DOI: 10.1039/c9dt03443a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The synthesis and structural analyses of pincer-type iridium complexes having gallyl- and indyl-metalloligands were achieved utilizing 2,5-bis(6-phosphino-2-pyridyl)pyrrolide as a new scaffold for metal-metal bonds. A BH3-coordinated PInP-Ir dihydride complex was also developed as an equivalent to an iridium dihydride complex, which could be a useful catalyst for synthetic reactions.
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Affiliation(s)
- Jun Takaya
- Department of Chemistry, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan.
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22
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Morisako S, Watanabe S, Ikemoto S, Muratsugu S, Tada M, Yamashita M. Synthesis of A Pincer‐Ir
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Complex with A Base‐Free Alumanyl Ligand and Its Application toward the Dehydrogenation of Alkanes. Angew Chem Int Ed Engl 2019; 58:15031-15035. [DOI: 10.1002/anie.201909009] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Shogo Morisako
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University, Furo-cho, Chikusa-ku Nagoya 464-8603 Aichi Japan
| | - Seiya Watanabe
- Department of Applied Chemistry Faculty of Science and Engineering Chuo University 1-13-27, Kasuga, Bunkyo-ku 112-8551 Tokyo Japan
| | - Satoru Ikemoto
- Department of Chemistry Graduate School of Science & Research Center for Materials Science (RCMS) & Integrated Research Consortium on Chemical Science (IRCCS) & Institute for Advanced Science (IAS) Nagoya University, Furo-cho, Chikusa-ku Nagoya 464-8603 Aichi Japan
| | - Satoshi Muratsugu
- Department of Chemistry Graduate School of Science & Research Center for Materials Science (RCMS) & Integrated Research Consortium on Chemical Science (IRCCS) & Institute for Advanced Science (IAS) Nagoya University, Furo-cho, Chikusa-ku Nagoya 464-8603 Aichi Japan
| | - Mizuki Tada
- Department of Chemistry Graduate School of Science & Research Center for Materials Science (RCMS) & Integrated Research Consortium on Chemical Science (IRCCS) & Institute for Advanced Science (IAS) Nagoya University, Furo-cho, Chikusa-ku Nagoya 464-8603 Aichi Japan
| | - Makoto Yamashita
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University, Furo-cho, Chikusa-ku Nagoya 464-8603 Aichi Japan
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23
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Morisako S, Watanabe S, Ikemoto S, Muratsugu S, Tada M, Yamashita M. Synthesis of A Pincer‐Ir
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Complex with A Base‐Free Alumanyl Ligand and Its Application toward the Dehydrogenation of Alkanes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shogo Morisako
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University, Furo-cho, Chikusa-ku Nagoya 464-8603 Aichi Japan
| | - Seiya Watanabe
- Department of Applied Chemistry Faculty of Science and Engineering Chuo University 1-13-27, Kasuga, Bunkyo-ku 112-8551 Tokyo Japan
| | - Satoru Ikemoto
- Department of Chemistry Graduate School of Science & Research Center for Materials Science (RCMS) & Integrated Research Consortium on Chemical Science (IRCCS) & Institute for Advanced Science (IAS) Nagoya University, Furo-cho, Chikusa-ku Nagoya 464-8603 Aichi Japan
| | - Satoshi Muratsugu
- Department of Chemistry Graduate School of Science & Research Center for Materials Science (RCMS) & Integrated Research Consortium on Chemical Science (IRCCS) & Institute for Advanced Science (IAS) Nagoya University, Furo-cho, Chikusa-ku Nagoya 464-8603 Aichi Japan
| | - Mizuki Tada
- Department of Chemistry Graduate School of Science & Research Center for Materials Science (RCMS) & Integrated Research Consortium on Chemical Science (IRCCS) & Institute for Advanced Science (IAS) Nagoya University, Furo-cho, Chikusa-ku Nagoya 464-8603 Aichi Japan
| | - Makoto Yamashita
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University, Furo-cho, Chikusa-ku Nagoya 464-8603 Aichi Japan
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24
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Bäcker A, Li Y, Fritz M, Grätz M, Ke Z, Langer R. Redox-Active, Boron-Based Ligands in Iron Complexes with Inverted Hydride Reactivity in Dehydrogenation Catalysis. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00882] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andreas Bäcker
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Straße, 35032 Marburg, Germany
| | - Yinwu Li
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou 510275, China
| | - Maximilian Fritz
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Straße, 35032 Marburg, Germany
| | - Maik Grätz
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Straße, 35032 Marburg, Germany
| | - Zhuofeng Ke
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou 510275, China
| | - Robert Langer
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Straße, 35032 Marburg, Germany
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25
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Zimmerman AC, Fryzuk MD. β-Hydrogen Elimination and Reductive Elimination from a κ 3-PPC Nickel Complex. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00297] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amanda C. Zimmerman
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6Z 1Z1
| | - Michael D. Fryzuk
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6Z 1Z1
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26
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Nakayama S, Morisako S, Yamashita M. Synthesis and Application of Pyrrole-Based PNP–Ir Complexes to Catalytic Transfer Dehydrogenation of Cyclooctane. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00072] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Shin Nakayama
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27, Kasuga, Bunkyo-ku, 112-8551 Tokyo, Japan
| | - Shogo Morisako
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| | - Makoto Yamashita
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
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27
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28
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Nakamura T, Suzuki K, Yamashita M. Aluminabenzene–Rh and −Ir Complexes: Synthesis, Structure, and Application toward Catalytic C–H Borylation. J Am Chem Soc 2017; 139:17763-17766. [DOI: 10.1021/jacs.7b11127] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Taichi Nakamura
- Department
of Applied Chemistry, Graduate School of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, 112-8551 Tokyo, Japan
| | - Katsunori Suzuki
- Department
of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Makoto Yamashita
- Department
of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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29
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Kwan EH, Ogawa H, Yamashita M. A Highly Active PBP–Iridium Catalyst for the Dehydrogenation of Dimethylamine–Borane: Catalytic Performance and Mechanism. ChemCatChem 2017. [DOI: 10.1002/cctc.201700384] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Enrique Huang Kwan
- Department of Applied Chemistry Faculty of Science and Engineering, Chuo University 1-13-27 Kasuga Bunkyo-ku 112-8551 Tokyo Japan
| | - Hayato Ogawa
- Department of Applied Chemistry Faculty of Science and Engineering, Chuo University 1-13-27 Kasuga Bunkyo-ku 112-8551 Tokyo Japan
| | - Makoto Yamashita
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Furo-cho Chikusa-ku 464-8603 Nagoya Japan
- Research Development Initiative Chuo University 1-13-27 Kasuga Bunkyo-ku 112-8551 Tokyo Japan
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30
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Shih WC, Gu W, MacInnis MC, Herbert DE, Ozerov OV. Boryl/Borane Interconversion and Diversity of Binding Modes of Oxygenous Ligands in PBP Pincer Complexes of Rhodium. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00070] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wei-Chun Shih
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas 77842, United States
| | - Weixing Gu
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas 77842, United States
| | - Morgan C. MacInnis
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas 77842, United States
| | - David E. Herbert
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas 77842, United States
| | - Oleg V. Ozerov
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas 77842, United States
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31
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Wang G, Liu L, Wang H, Ding YS, Zhou J, Mao S, Li P. N,B-Bidentate Boryl Ligand-Supported Iridium Catalyst for Efficient Functional-Group-Directed C–H Borylation. J Am Chem Soc 2016; 139:91-94. [DOI: 10.1021/jacs.6b11867] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Guanghui Wang
- Frontier
Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, 710054, China
| | - Li Liu
- Frontier
Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, 710054, China
| | - Hong Wang
- Frontier
Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, 710054, China
| | - You-Song Ding
- Frontier
Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, 710054, China
| | - Jing Zhou
- Frontier
Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, 710054, China
| | - Shuai Mao
- Department
of Medicinal Chemistry, School of Pharmacy, Xi’an Jiaotong University, Xi’an, 710061, China
| | - Pengfei Li
- Frontier
Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, 710054, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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32
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Shih WC, Ozerov OV. Synthesis and Characterization of PBP Pincer Iridium Complexes and Their Application in Alkane Transfer Dehydrogenation. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00762] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wei-Chun Shih
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas 77842, United States
| | - Oleg V. Ozerov
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, Texas 77842, United States
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