1
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Gao J, Ge Y, He C. X-type silyl ligands for transition-metal catalysis. Chem Soc Rev 2024; 53:4648-4673. [PMID: 38525837 DOI: 10.1039/d3cs00893b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Given the critical importance of novel ligand development for transition-metal (TM) catalysis, as well as the resurgence of the field of organosilicon chemistry and silyl ligands, to summarize the topic of X-type silyl ligands for TM catalysis is highly attractive and timely. This review particularly emphasizes the unique σ-donating characteristics and trans-effects of silyl ligands, highlighting their crucial roles in enhancing the reactivity and selectivity of various catalytic reactions, including small molecule activation, Kumada cross-coupling, hydrofunctionalization, C-H functionalization, and dehydrogenative Si-O coupling reactions. Additionally, future developments in this field are also provided, which would inspire new insights and applications in catalytic synthetic chemistry.
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Affiliation(s)
- Jihui Gao
- School of Chemistry and Chemical Engineering, Heilongjiang Provincial, Harbin Institute of Technology, Harbin, Heilongjiang 150080, China
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
| | - Yicong Ge
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
| | - Chuan He
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
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2
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Komuro T, Hayasaka K, Takahashi K, Ishiwata N, Yamauchi K, Tobita H, Hashimoto H. Iron complexes supported by silyl-NHC chelate ligands: synthesis and use for double hydroboration of nitriles. Dalton Trans 2024; 53:4041-4047. [PMID: 38333906 DOI: 10.1039/d3dt03605g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Iron complexes bearing new silyl-NHC bidentate ligands were synthesised by treating Fe3(CO)12 with a mixture of N-(hydrosilyl)methyl imidazolium salts and a base. These complexes showed high performance in the catalytic double hydroboration of nitrile with pinacolborane (HBpin) to produce N,N-bis(boryl)amine by a combination of UV irradiation and mild heating (60 °C). The product yields for the hydroboration of aromatic and aliphatic nitriles reached 85%-95% (NMR) using an iron complex (5 mol%). Reducing the loading amount of the iron complex to 0.5 mol% still afforded the products in high yields. An analogous ruthenium complex, which was similarly synthesised using Ru3(CO)12, showed lower activity. Stoichiometric reactions of the iron complex with nitriles afforded Fe(0)-N-silylimine complexes, which may be dormant states in nitrile hydroboration. A catalytic mechanism including Fe(0) N-silylimine species is proposed.
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Affiliation(s)
- Takashi Komuro
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
| | - Kohei Hayasaka
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
| | - Kasumi Takahashi
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
| | - Nozomu Ishiwata
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
| | - Kota Yamauchi
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
| | - Hiromi Tobita
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
| | - Hisako Hashimoto
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
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3
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Sato K, Komuro T, Osawa T, Hashimoto H, Tobita H. Iridium Complexes with a Naphthyridine-Based Si, N-Ligand: Synthesis and Catalytic Activity toward Olefin Hydrogenation. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Keita Sato
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Takashi Komuro
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Tomohiro Osawa
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Hisako Hashimoto
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Hiromi Tobita
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
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4
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Komuro T, Mochizuki D, Hashimoto H, Tobita H. Iridium and rhodium complexes bearing a silyl-bipyridine pincer ligand: synthesis, structures and catalytic activity for C-H borylation of arenes. Dalton Trans 2022; 51:9983-9987. [PMID: 35735002 DOI: 10.1039/d2dt01227h] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Unsaturated 16-electron iridium and rhodium complexes bearing a silyl-bipyridine-based SiNN-pincer ligand (BpySiNN) were synthesised and characterised by X-ray crystallography and NMR spectroscopy. The iridium-BpySiNN complex facilitated the catalytic C(sp2)-H borylation of arenes to give arylboronate esters in high yields (≥93%) under mild conditions (∼40 °C).
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Affiliation(s)
- Takashi Komuro
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
| | - Daiki Mochizuki
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
| | - Hisako Hashimoto
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
| | - Hiromi Tobita
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
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5
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Kim J. Metal complexes containing
silicon‐based
pincer ligands: Reactivity and application in small molecule activation. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jin Kim
- Department of Chemistry Sunchon National University Suncheon Jeollanam‐do Republic of Korea
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6
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Kisets I, Zabelinskaya S, Gelman D. Synthesis and Catalytic Properties of a Carbometalated Half-Sandwich Ru(II) Complex Bearing a Rigid Polyaromatic Tether. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00611] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ilya Kisets
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Sofiya Zabelinskaya
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Dmitri Gelman
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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7
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Whited MT. Pincer-supported metal/main-group bonds as platforms for cooperative transformations. Dalton Trans 2021; 50:16443-16450. [PMID: 34705001 DOI: 10.1039/d1dt02739e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electron-rich late metals and electropositive main-group elements (metals and metalloids) can be combined to provide an ambiphilic façade for exploring metal-ligand cooperation, yet the instability of the metal/main-group bond frequently limits the study and application of such units. Incorporating main-group donors into pincer frameworks, where they are stabilized and held in proximity to the transition-metal partner, can allow discovery of new modes of reactivity and incorporation into catalytic processes. This Perspective summarizes common modes of cooperativity that have been demonstrated for pincer frameworks featuring metal/main-group bonds, highlighting similarities among boron, aluminium, and silicon donors and identifying directions for further development.
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Affiliation(s)
- Matthew T Whited
- Department of Chemistry, Carleton College, Northfield, MN 55057, USA.
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8
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Komuro T, Asagami J, Higashi H, Sato K, Hashimoto H, Tobita H. Catalysts for Regio- and Stereoselective C(sp3)–H Deuteration of Tricyclohexylphosphine with Benzene-d6 Generated via Dehydrochlorination of Chlorido(dihydrido)iridium Complexes Containing a Xanthene-Based Bis(silyl) Chelate Ligand. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00359] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takashi Komuro
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Junpei Asagami
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Hironori Higashi
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Keita Sato
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Hisako Hashimoto
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Hiromi Tobita
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
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9
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Liu K, Qin R, Zheng N. Insights into the Interfacial Effects in Heterogeneous Metal Nanocatalysts toward Selective Hydrogenation. J Am Chem Soc 2021; 143:4483-4499. [PMID: 33724821 DOI: 10.1021/jacs.0c13185] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Heterogeneous metal catalysts are distinguished by their structure inhomogeneity and complexity. The chameleonic nature of heterogeneous metal catalysts have prevented us from deeply understanding their catalytic mechanisms at the molecular level and thus developing industrial catalysts with perfect catalytic selectivity toward desired products. This Perspective aims to summarize recent research advances in deciphering complicated interfacial effects in heterogeneous hydrogenation metal nanocatalysts toward the design of practical heterogeneous catalysts with clear catalytic mechanism and thus nearly perfect selectivity. The molecular insights on how the three key components (i.e., catalytic metal, support, and ligand modifier) of a heterogeneous metal nanocatalyst induce effective interfaces determining the hydrogenation activity and selectivity are provided. The interfaces influence not only the H2 activation pathway but also the interaction of substrates to be hydrogenated with catalytic metal surface and thus the hydrogen transfer process. As for alloy nanocatalysts, together with the electronic and geometric ensemble effects, spillover hydrogenation occurring on catalytically "inert" metal by utilizing hydrogen atom spillover from active metal is highlighted. The metal-support interface effects are then discussed with emphasis on the molecular involvement of ligands located at the metal-support interface as well as cationic species from the support in hydrogenation. The mechanisms of how organic modifiers, with the ability to induce both 3D steric and electronic effects, on metal nanocatalysts manipulate the hydrogenation pathways are demonstrated. A brief summary is finally provided together with a perspective on the development of enzyme-like heterogeneous hydrogenation metal catalysts.
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Affiliation(s)
- Kunlong Liu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and National & Local Joint Engineering Research Center for Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ruixuan Qin
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and National & Local Joint Engineering Research Center for Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Nanfeng Zheng
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and National & Local Joint Engineering Research Center for Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.,Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen 361005, China
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10
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Esteruelas MA, Martínez A, Oliván M, Oñate E. Kinetic Analysis and Sequencing of Si–H and C–H Bond Activation Reactions: Direct Silylation of Arenes Catalyzed by an Iridium-Polyhydride. J Am Chem Soc 2020; 142:19119-19131. [DOI: 10.1021/jacs.0c07578] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Miguel A. Esteruelas
- Departamento de Quı́mica Inorgánica, Instituto de Sı́ntesis Quı́mica y Catálisis Homogénea (ISQCH), Centro de Innovación en Quı́mica Avanzada (ORFEO−CINQA), Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Antonio Martínez
- Departamento de Quı́mica Inorgánica, Instituto de Sı́ntesis Quı́mica y Catálisis Homogénea (ISQCH), Centro de Innovación en Quı́mica Avanzada (ORFEO−CINQA), Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Montserrat Oliván
- Departamento de Quı́mica Inorgánica, Instituto de Sı́ntesis Quı́mica y Catálisis Homogénea (ISQCH), Centro de Innovación en Quı́mica Avanzada (ORFEO−CINQA), Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Quı́mica Inorgánica, Instituto de Sı́ntesis Quı́mica y Catálisis Homogénea (ISQCH), Centro de Innovación en Quı́mica Avanzada (ORFEO−CINQA), Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
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11
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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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12
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Whited MT, Taylor BLH. Metal/Organosilicon Complexes: Structure, Reactivity, and Considerations for Catalysis. COMMENT INORG CHEM 2020. [DOI: 10.1080/02603594.2020.1737026] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Matthew T. Whited
- Department of Chemistry, Carleton College, Northfield, Minnesota, USA
| | - Buck L. H. Taylor
- Department of Chemistry, University of Portland, Portland, Oregon, USA
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13
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Corona-González MV, Zamora-Moreno J, Muñoz-Hernández MA, Vendier L, Sabo-Etienne S, Montiel-Palma V. Exploiting the Versatility of Phosphinobenzylsilanes for the Stabilization of 14-Electron Rhodium(III) and Iridium(III) Complexes. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900107] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- María Vicky Corona-González
- Centro de Investigaciones Químicas; IICBA; Universidad Autónoma del Estado de Morelos; Avenida Universidad 1001, Col. Chamilpa 62209 Cuernavaca, Morelos, C. P. Mexico
- LCC-CNRS; IICBA; Université de Toulouse, CNRS, UPS; 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
| | - Julio Zamora-Moreno
- Centro de Investigaciones Químicas; IICBA; Universidad Autónoma del Estado de Morelos; Avenida Universidad 1001, Col. Chamilpa 62209 Cuernavaca, Morelos, C. P. Mexico
| | - Miguel A. Muñoz-Hernández
- Centro de Investigaciones Químicas; IICBA; Universidad Autónoma del Estado de Morelos; Avenida Universidad 1001, Col. Chamilpa 62209 Cuernavaca, Morelos, C. P. Mexico
| | - Laure Vendier
- LCC-CNRS; IICBA; Université de Toulouse, CNRS, UPS; 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
| | - Sylviane Sabo-Etienne
- LCC-CNRS; IICBA; Université de Toulouse, CNRS, UPS; 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
| | - Virginia Montiel-Palma
- Centro de Investigaciones Químicas; IICBA; Universidad Autónoma del Estado de Morelos; Avenida Universidad 1001, Col. Chamilpa 62209 Cuernavaca, Morelos, C. P. Mexico
- Department of Chemistry; IICBA; Mississippi State University; Box 9573 39762 Mississippi State Mississippi USA
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14
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Komuro T, Tobita H. Synthesis and Unique Catalytic Reactivity of Metal Complexes with Chelate-Type Silyl Ligands Connected by Xanthene. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.1301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Hiromi Tobita
- Department of Chemistry, Graduate School of Science, Tohoku University
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15
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Ünver H. Effective Room Temperature Hydrogenation of Alkenes by X‐Ray Characterized Salicylaldimine‐Rhodium(I) Complex. ChemistrySelect 2018. [DOI: 10.1002/slct.201802866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hakan Ünver
- Department of Chemistry, Faculty of ScienceEskişehir Technical University Eskişehir 26470 Turkey
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16
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Kamitani M, Nishiguchi Y, Itazaki M, Nakazawa H. Dihydride Iron Complex Bearing a Silyl-Tethered Cyclopentadienyl Ligand. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20170403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Masahiro Kamitani
- Department of Chemistry, School of Science, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan
| | - Yoshinori Nishiguchi
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Masumi Itazaki
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Hiroshi Nakazawa
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
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17
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Kusuma I, Komuro T, Tobita H. Diruthenium Complexes with a 1,8-Naphthyridine-based Bis(silyl) Supporting Ligand: Synthesis and Structures of Complexes Containing Ru II2(μ-H) 2 and Ru I2 Cores. CHEM LETT 2018. [DOI: 10.1246/cl.171099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Indra Kusuma
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Takashi Komuro
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Hiromi Tobita
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan
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18
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An aryl-bridged dixanthene scaffold for building multinucleating ligands and supramolecular assemblies: Syntheses and structures. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.09.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Kitano T, Komuro T, Ono R, Tobita H. Tandem Hydrosilylation/o-C–H Silylation of Arylalkynes Catalyzed by Ruthenium Bis(silyl) Aminophosphine Complexes. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00528] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takeo Kitano
- Department of Chemistry,
Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Takashi Komuro
- Department of Chemistry,
Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Rikima Ono
- Department of Chemistry,
Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Hiromi Tobita
- Department of Chemistry,
Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
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20
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Abstract
This review presents and discusses the use of multidentate silanide ligands in transition metal chemistry depending on their ligand architecture.
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Affiliation(s)
- M. Simon
- Karlsruhe Institute of Technology (KIT)
- Institute of Inorganic Chemistry
- Devision Molecular Chemistry
- 76131 Karlsruhe
- Germany
| | - F. Breher
- Karlsruhe Institute of Technology (KIT)
- Institute of Inorganic Chemistry
- Devision Molecular Chemistry
- 76131 Karlsruhe
- Germany
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21
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Corona-González MV, Zamora-Moreno J, Cuevas-Chávez CA, Rufino-Felipe E, Mothes-Martin E, Coppel Y, Muñoz-Hernández MA, Vendier L, Flores-Alamo M, Grellier M, Sabo-Etienne S, Montiel-Palma V. A family of rhodium and iridium complexes with semirigid benzylsilyl phosphines: from bidentate to tetradentate coordination modes. Dalton Trans 2017; 46:8827-8838. [DOI: 10.1039/c7dt00727b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rh and Ir coordination of phosphines with 1 to 3 Si–H groups.
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22
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Lipke MC, Liberman-Martin AL, Tilley TD. Significant Cooperativity Between Ruthenium and Silicon in Catalytic Transformations of an Isocyanide. J Am Chem Soc 2016; 138:9704-13. [PMID: 27384746 DOI: 10.1021/jacs.6b05736] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Complexes [PhBP3]RuH(η(3)-H2SiRR') (RR' = Me,Ph, 1a; RR' = Ph2, 1b; RR' = Et2, 1c) react with XylNC to form carbene complexes [PhBP3]Ru(H)═[C(H)(N(Xyl)(η(2)-H-SiRR'))] (2a-c; previously reported for 2a,b). Reactions of 1a-c with XylNC were further investigated to assess how metal complexes with multiple M-H-Si bonds can mediate transformations of unsaturated substrates. Complex 2a eliminates an N-methylsilacycloindoline product (3a) that results from hydrosilylation, hydrogenation, and benzylic C-H activation of XylNC. Turnover was achieved in a pseudocatalytic manner by careful control of the reaction conditions. Complex 1c mediates a catalytic isocyanide reductive coupling to furnish an alkene product (4) in a transformation that has precedent only in stoichiometric processes. The formations of 3a and 4 were investigated with deuterium labeling experiments, KIE and other kinetic studies, and by examining the reactivity of XylNC with an η(3)-H2SiMeMes complex (1d) to form a C-H activated complex (6). Complex 6 serves as a model for an intermediate in the formation of 3a, and NMR investigations at -30 °C reveal that 6 forms via a carbene complex (1d) that isomerizes to aminomethyl complex 7d. These investigations reveal that the formations of 3a and 4 involve multiple 4-, 5-, and 6-coordinate silicon species with 0, 1, 2, or 3 Ru-H-Si bonds. These mechanisms demonstrate exceptionally intricate roles for silicon in transition-metal-catalyzed reactions with a silane reagent.
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Affiliation(s)
- Mark C Lipke
- Department of Chemistry, University of California , Berkeley, California 94720, United States
| | | | - T Don Tilley
- Department of Chemistry, University of California , Berkeley, California 94720, United States
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23
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Whited MT, Deetz AM, Donnell TM, Janzen DE. Examining the role of Rh/Si cooperation in alkene hydrogenation by a pincer-type [P2Si]Rh complex. Dalton Trans 2016; 45:9758-61. [PMID: 26831546 DOI: 10.1039/c6dt00027d] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A bis(phosphine)/triflatosilyl pincer-type Rh(i) complex can reversibly store one equivalent of H2 across the Si-Rh bond upon triflate migration from silicon to rhodium. The triflatosilyl complex serves as an effective precatalyst for norbornene hydrogenation, but Si-OTf bond cleavage is not implicated in the major catalytic pathway. The combined findings suggest possible strategies for M/Si cooperation in catalytic processes.
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Affiliation(s)
- Matthew T Whited
- Department of Chemistry, Carleton College, Northfield, MN 55057, USA.
| | - Alexander M Deetz
- Department of Chemistry, Carleton College, Northfield, MN 55057, USA.
| | | | - Daron E Janzen
- Department of Chemistry and Biochemistry, St. Catherine University, St. Paul, MN 55105, USA
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24
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Maity A, Teets TS. Main Group Lewis Acid-Mediated Transformations of Transition-Metal Hydride Complexes. Chem Rev 2016; 116:8873-911. [DOI: 10.1021/acs.chemrev.6b00034] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ayan Maity
- Department of Chemistry, University of Houston, Lamar Fleming Jr. Building, 3585 Cullen Boulevard,
Room 112, Houston, Texas 77204-5003, United States
| | - Thomas S. Teets
- Department of Chemistry, University of Houston, Lamar Fleming Jr. Building, 3585 Cullen Boulevard,
Room 112, Houston, Texas 77204-5003, United States
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