101
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Hong S, Lu X, Lee YM, Seo MS, Ohta T, Ogura T, Clémancey M, Maldivi P, Latour JM, Sarangi R, Nam W. Achieving One-Electron Oxidation of a Mononuclear Nonheme Iron(V)-Imido Complex. J Am Chem Soc 2017; 139:14372-14375. [PMID: 28960973 DOI: 10.1021/jacs.7b08161] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A mononuclear nonheme iron(V)-imido complex bearing a tetraamido macrocyclic ligand (TAML), [FeV(NTs)(TAML)]- (1), was oxidized by one-electron oxidants, affording formation of an iron(V)-imido TAML cation radical species, [FeV(NTs)(TAML+•)] (2); 2 is a diamagnetic (S = 0) complex, resulting from the antiferromagnetic coupling of the low-spin iron(V) ion (S = 1/2) with the one-electron oxidized ligand (TAML+•). 2 is a competent oxidant in C-H bond functionalization and nitrene transfer reaction, showing that the reactivity of 2 is greater than that of 1.
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Affiliation(s)
- Seungwoo Hong
- Department of Chemistry and Nano Science, Ewha Womans University , Seoul 03760, Korea.,Department of Chemistry, Sookmyung Women's University , Seoul 04310, Korea
| | - Xiaoyan Lu
- Department of Chemistry and Nano Science, Ewha Womans University , Seoul 03760, Korea
| | - Yong-Min Lee
- Department of Chemistry and Nano Science, Ewha Womans University , Seoul 03760, Korea
| | - Mi Sook Seo
- Department of Chemistry and Nano Science, Ewha Womans University , Seoul 03760, Korea
| | - Takehiro Ohta
- Picobiology Institute, Graduate School of Life Science, University of Hyogo, RSC-UH LP Center , Hyogo 679-5148, Japan
| | - Takashi Ogura
- Picobiology Institute, Graduate School of Life Science, University of Hyogo, RSC-UH LP Center , Hyogo 679-5148, Japan
| | - Martin Clémancey
- LCBM/PMB and CEA/BIG/CBM/and CNRS UMR 5249, Université Grenoble Alpes , Grenoble 38054, France
| | - Pascale Maldivi
- CEA, CNRS, INAC, SYMMES, Université Grenoble Alpes , Grenoble 38000, France
| | - Jean-Marc Latour
- LCBM/PMB and CEA/BIG/CBM/and CNRS UMR 5249, Université Grenoble Alpes , Grenoble 38054, France
| | - Ritimukta Sarangi
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory , California 94025, United States
| | - Wonwoo Nam
- Department of Chemistry and Nano Science, Ewha Womans University , Seoul 03760, Korea.,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences , Lanzhou 730000, China
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102
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Liu Y, Du J, Deng L. Synthesis, Structure, and Reactivity of Low-Spin Cobalt(II) Imido Complexes [(Me 3P) 3Co(NAr)]. Inorg Chem 2017; 56:8278-8286. [PMID: 28661656 DOI: 10.1021/acs.inorgchem.7b00941] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The reactions of [Co(PMe3)4] with the bulky organic azides, DippN3 and DmpN3 [Dipp, 2,6-diisopropylphenyl; Dmp, 2,6-di(2',4',6'-trimethylphenyl)phenyl], afforded the cobalt(II) terminal imido complexes [(Me3P)3Co(NAr)] (Ar = Dipp, 1; Dmp, 2). The cobalt imido complexes in their solid states show trigonal pyramidal coordination geometry and long Co-N(imido) separations (ca. 1.71 Å). Spectroscopic characterization and theoretical studies indicated their low-spin cobalt(II) nature. Reactivity studies on 1 revealed its nitrene-transfer reactions with PMe3 and CO, the imido/oxo and imido/sulfido exchange reactions with PhCHO and CS2, and the single-electron oxidation reaction by ferrocenium cation to form cobalt(III) imide.
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Affiliation(s)
- Yang Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, P. R. China
| | - Jingzhen Du
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, P. R. China
| | - Liang Deng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Road, Shanghai 200032, P. R. China
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103
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Parrot A, Morimoto Y, Paria S, Sugimoto H, Fujieda N, Itoh S. Generation and characterisation of a stable nickel(ii)-aminoxyl radical complex. Dalton Trans 2017; 46:8013-8016. [PMID: 28617501 DOI: 10.1039/c7dt01789h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A stable nickel(ii)-aminoxyl radical complex was generated by the reaction of a nickel(ii) complex supported by a tren ligand (tris(2-aminoethyl)amine) having bulky m-terphenyl substituents (TIPT: 3,5-bis(2,6-diisopropylphenyl)phenyl) and m-CPBA (m-chloroperoxybenzoic acid). The formation mechanism of the nickel(ii)-aminoxyl radical complex was examined.
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Affiliation(s)
- Arnaud Parrot
- Department of Material and Life Science, Division of Advanced Science and Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
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104
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Tsuji T, Zaoputra AA, Hitomi Y, Mieda K, Ogura T, Shiota Y, Yoshizawa K, Sato H, Kodera M. Specific Enhancement of Catalytic Activity by a Dicopper Core: Selective Hydroxylation of Benzene to Phenol with Hydrogen Peroxide. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702291] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Tomokazu Tsuji
- Department of Molecular Chemistry and Biochemistry Doshisha University, Kyotanabe Kyoto 610-0321 Japan
| | - Antonius Andre Zaoputra
- Department of Molecular Chemistry and Biochemistry Doshisha University, Kyotanabe Kyoto 610-0321 Japan
| | - Yutaka Hitomi
- Department of Molecular Chemistry and Biochemistry Doshisha University, Kyotanabe Kyoto 610-0321 Japan
| | - Kaoru Mieda
- Department of Life Science University of Hyogo Kouto, 2-1, Ako-gun Kamigori-cho Hyogo 678-1297 Japan
| | - Takashi Ogura
- Department of Life Science University of Hyogo Kouto, 2-1, Ako-gun Kamigori-cho Hyogo 678-1297 Japan
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering Kyushu University Fukuoka 819-0395 Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering Kyushu University Fukuoka 819-0395 Japan
| | - Hiroyasu Sato
- Application Laboratory Rigaku Corporation, Akishima Tokyo 196-8666 Japan
| | - Masahito Kodera
- Department of Molecular Chemistry and Biochemistry Doshisha University, Kyotanabe Kyoto 610-0321 Japan
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105
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Tsuji T, Zaoputra AA, Hitomi Y, Mieda K, Ogura T, Shiota Y, Yoshizawa K, Sato H, Kodera M. Specific Enhancement of Catalytic Activity by a Dicopper Core: Selective Hydroxylation of Benzene to Phenol with Hydrogen Peroxide. Angew Chem Int Ed Engl 2017; 56:7779-7782. [PMID: 28561921 DOI: 10.1002/anie.201702291] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 03/30/2017] [Indexed: 11/11/2022]
Abstract
A dicopper(II) complex, stabilized by the bis(tpa) ligand 1,2-bis[2-[bis(2-pyridylmethyl)aminomethyl]-6-pyridyl]ethane (6-hpa), [Cu2 (μ-OH)(6-hpa)]3+ , was synthesized and structurally characterized. This complex catalyzed selective hydroxylation of benzene to phenol using H2 O2 , thus attaining large turnover numbers (TONs) and high H2 O2 efficiency. The TON after 40 hours for the phenol production exceeded 12000 in MeCN at 50 °C under N2 , the highest value reported for benzene hydroxylation with H2 O2 catalyzed by homogeneous complexes. At 22 % benzene conversion, phenol (95.2 %) and p-benzoquinone (4.8 %) were produced. The mechanism of H2 O2 activation and benzene hydroxylation is proposed.
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Affiliation(s)
- Tomokazu Tsuji
- Department of Molecular Chemistry and Biochemistry, Doshisha University, Kyotanabe, Kyoto, 610-0321, Japan
| | - Antonius Andre Zaoputra
- Department of Molecular Chemistry and Biochemistry, Doshisha University, Kyotanabe, Kyoto, 610-0321, Japan
| | - Yutaka Hitomi
- Department of Molecular Chemistry and Biochemistry, Doshisha University, Kyotanabe, Kyoto, 610-0321, Japan
| | - Kaoru Mieda
- Department of Life Science, University of Hyogo, Kouto, 2-1, Ako-gun, Kamigori-cho, Hyogo, 678-1297, Japan
| | - Takashi Ogura
- Department of Life Science, University of Hyogo, Kouto, 2-1, Ako-gun, Kamigori-cho, Hyogo, 678-1297, Japan
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, 819-0395, Japan
| | - Hiroyasu Sato
- Application Laboratory, Rigaku Corporation, Akishima, Tokyo, 196-8666, Japan
| | - Masahito Kodera
- Department of Molecular Chemistry and Biochemistry, Doshisha University, Kyotanabe, Kyoto, 610-0321, Japan
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106
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Bakhoda A(G, Jiang Q, Bertke JA, Cundari TR, Warren TH. Elusive Terminal Copper Arylnitrene Intermediates. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611275] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | - Quan Jiang
- Department of Chemistry Center for Advanced Scientific Computing and Modeling (CASCaM) University of North Texas Denton TX 76203 USA
| | - Jeffery A. Bertke
- Department of Chemistry Georgetown University Box 571227 Washington DC 20057- 1227 USA
| | - Thomas R. Cundari
- Department of Chemistry Center for Advanced Scientific Computing and Modeling (CASCaM) University of North Texas Denton TX 76203 USA
| | - Timothy H. Warren
- Department of Chemistry Georgetown University Box 571227 Washington DC 20057- 1227 USA
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107
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Bakhoda A(G, Jiang Q, Bertke JA, Cundari TR, Warren TH. Elusive Terminal Copper Arylnitrene Intermediates. Angew Chem Int Ed Engl 2017; 56:6426-6430. [DOI: 10.1002/anie.201611275] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 03/29/2017] [Indexed: 12/31/2022]
Affiliation(s)
| | - Quan Jiang
- Department of Chemistry Center for Advanced Scientific Computing and Modeling (CASCaM) University of North Texas Denton TX 76203 USA
| | - Jeffery A. Bertke
- Department of Chemistry Georgetown University Box 571227 Washington DC 20057- 1227 USA
| | - Thomas R. Cundari
- Department of Chemistry Center for Advanced Scientific Computing and Modeling (CASCaM) University of North Texas Denton TX 76203 USA
| | - Timothy H. Warren
- Department of Chemistry Georgetown University Box 571227 Washington DC 20057- 1227 USA
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108
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Affiliation(s)
- Nathaniel J. Hartmann
- Department of Chemistry and
Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Guang Wu
- Department of Chemistry and
Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Trevor W. Hayton
- Department of Chemistry and
Biochemistry, University of California, Santa Barbara, California 93106, United States
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109
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Synthesis and reactivity of a mononuclear non-haem cobalt(IV)-oxo complex. Nat Commun 2017; 8:14839. [PMID: 28337985 PMCID: PMC5376677 DOI: 10.1038/ncomms14839] [Citation(s) in RCA: 116] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 02/03/2017] [Indexed: 12/21/2022] Open
Abstract
Terminal cobalt(IV)-oxo (CoIV-O) species have been implicated as key intermediates in various cobalt-mediated oxidation reactions. Herein we report the photocatalytic generation of a mononuclear non-haem [(13-TMC)CoIV(O)]2+ (2) by irradiating [CoII(13-TMC)(CF3SO3)]+ (1) in the presence of [RuII(bpy)3]2+, Na2S2O8, and water as an oxygen source. The intermediate 2 was also obtained by reacting 1 with an artificial oxidant (that is, iodosylbenzene) and characterized by various spectroscopic techniques. In particular, the resonance Raman spectrum of 2 reveals a diatomic Co-O vibration band at 770 cm-1, which provides the conclusive evidence for the presence of a terminal Co-O bond. In reactivity studies, 2 was shown to be a competent oxidant in an intermetal oxygen atom transfer, C-H bond activation and olefin epoxidation reactions. The present results lend strong credence to the intermediacy of CoIV-O species in cobalt-catalysed oxidation of organic substrates as well as in the catalytic oxidation of water that evolves molecular oxygen.
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110
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Hong S, Lee YM, Ray K, Nam W. Dioxygen activation chemistry by synthetic mononuclear nonheme iron, copper and chromium complexes. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.07.006] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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111
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Elwell CE, Gagnon NL, Neisen BD, Dhar D, Spaeth AD, Yee GM, Tolman WB. Copper-Oxygen Complexes Revisited: Structures, Spectroscopy, and Reactivity. Chem Rev 2017; 117:2059-2107. [PMID: 28103018 PMCID: PMC5963733 DOI: 10.1021/acs.chemrev.6b00636] [Citation(s) in RCA: 445] [Impact Index Per Article: 63.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A longstanding research goal has been to understand the nature and role of copper-oxygen intermediates within copper-containing enzymes and abiological catalysts. Synthetic chemistry has played a pivotal role in highlighting the viability of proposed intermediates and expanding the library of known copper-oxygen cores. In addition to the number of new complexes that have been synthesized since the previous reviews on this topic in this journal (Mirica, L. M.; Ottenwaelder, X.; Stack, T. D. P. Chem. Rev. 2004, 104, 1013-1046 and Lewis, E. A.; Tolman, W. B. Chem. Rev. 2004, 104, 1047-1076), the field has seen significant expansion in the (1) range of cores synthesized and characterized, (2) amount of mechanistic work performed, particularly in the area of organic substrate oxidation, and (3) use of computational methods for both the corroboration and prediction of proposed intermediates. The scope of this review has been limited to well-characterized examples of copper-oxygen species but seeks to provide a thorough picture of the spectroscopic characteristics and reactivity trends of the copper-oxygen cores discussed.
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Affiliation(s)
- Courtney E Elwell
- Department of Chemistry, Center for Metals in Biocatalysis, University of Minnesota , 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - Nicole L Gagnon
- Department of Chemistry, Center for Metals in Biocatalysis, University of Minnesota , 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - Benjamin D Neisen
- Department of Chemistry, Center for Metals in Biocatalysis, University of Minnesota , 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - Debanjan Dhar
- Department of Chemistry, Center for Metals in Biocatalysis, University of Minnesota , 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - Andrew D Spaeth
- Department of Chemistry, Center for Metals in Biocatalysis, University of Minnesota , 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - Gereon M Yee
- Department of Chemistry, Center for Metals in Biocatalysis, University of Minnesota , 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - William B Tolman
- Department of Chemistry, Center for Metals in Biocatalysis, University of Minnesota , 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
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112
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Park Y, Kim Y, Chang S. Transition Metal-Catalyzed C-H Amination: Scope, Mechanism, and Applications. Chem Rev 2017; 117:9247-9301. [PMID: 28051855 DOI: 10.1021/acs.chemrev.6b00644] [Citation(s) in RCA: 1533] [Impact Index Per Article: 219.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Catalytic transformation of ubiquitous C-H bonds into valuable C-N bonds offers an efficient synthetic approach to construct N-functionalized molecules. Over the last few decades, transition metal catalysis has been repeatedly proven to be a powerful tool for the direct conversion of cheap hydrocarbons to synthetically versatile amino-containing compounds. This Review comprehensively highlights recent advances in intra- and intermolecular C-H amination reactions utilizing late transition metal-based catalysts. Initial discovery, mechanistic study, and additional applications were categorized on the basis of the mechanistic scaffolds and types of reactions. Reactivity and selectivity of novel systems are discussed in three sections, with each being defined by a proposed working mode.
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Affiliation(s)
- Yoonsu Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute of Basic Science (IBS) , Daejeon 34141, Republic of Korea
| | - Youyoung Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute of Basic Science (IBS) , Daejeon 34141, Republic of Korea
| | - Sukbok Chang
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141, Republic of Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute of Basic Science (IBS) , Daejeon 34141, Republic of Korea
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113
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Engelmann X, Yao S, Farquhar ER, Szilvási T, Kuhlmann U, Hildebrandt P, Driess M, Ray K. A New Domain of Reactivity for High-Valent Dinuclear [M(μ-O) 2 M'] Complexes in Oxidation Reactions. Angew Chem Int Ed Engl 2017; 56:297-301. [PMID: 27906528 PMCID: PMC5534222 DOI: 10.1002/anie.201607611] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 10/06/2016] [Indexed: 12/31/2022]
Abstract
The strikingly different reactivity of a series of homo- and heterodinuclear [(MIII )(μ-O)2 (MIII )']2+ (M=Ni; M'=Fe, Co, Ni and M=M'=Co) complexes with β-diketiminate ligands in electrophilic and nucleophilic oxidation reactions is reported, and can be correlated to the spectroscopic features of the [(MIII )(μ-O)2 (MIII )']2+ core. In particular, the unprecedented nucleophilic reactivity of the symmetric [NiIII (μ-O)2 NiIII ]2+ complex and the decay of the asymmetric [NiIII (μ-O)2 CoIII ]2+ core through aromatic hydroxylation reactions represent a new domain for high-valent bis(μ-oxido)dimetal reactivity.
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Affiliation(s)
- Xenia Engelmann
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Shenglai Yao
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Erik R Farquhar
- Case Center for Synchrotron Biosciences, NSLS-II, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Tibor Szilvási
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellért tér 4, 1111, Budapest, Hungary
| | - Uwe Kuhlmann
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Peter Hildebrandt
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Matthias Driess
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Kallol Ray
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
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114
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Engelmann X, Yao S, Farquhar ER, Szilvási T, Kuhlmann U, Hildebrandt P, Driess M, Ray K. A New Domain of Reactivity for High‐Valent Dinuclear [M(μ‐O)
2
M′] Complexes in Oxidation Reactions. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607611] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xenia Engelmann
- Department of Chemistry Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Shenglai Yao
- Department of Chemistry Technische Universität Berlin Straße des 17. Juni 135 10623 Berlin Germany
| | - Erik R. Farquhar
- Case Center for Synchrotron Biosciences, NSLS-II Brookhaven National Laboratory Upton NY 11973 USA
| | - Tibor Szilvási
- Department of Inorganic and Analytical Chemistry Budapest University of Technology and Economics Szent Gellért tér 4 1111 Budapest Hungary
| | - Uwe Kuhlmann
- Department of Chemistry Technische Universität Berlin Straße des 17. Juni 135 10623 Berlin Germany
| | - Peter Hildebrandt
- Department of Chemistry Technische Universität Berlin Straße des 17. Juni 135 10623 Berlin Germany
| | - Matthias Driess
- Department of Chemistry Technische Universität Berlin Straße des 17. Juni 135 10623 Berlin Germany
| | - Kallol Ray
- Department of Chemistry Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
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115
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Oxygen activation by mononuclear Mn, Co, and Ni centers in biology and synthetic complexes. J Biol Inorg Chem 2016; 22:407-424. [PMID: 27853875 DOI: 10.1007/s00775-016-1402-7] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 10/21/2016] [Indexed: 10/20/2022]
Abstract
The active sites of metalloenzymes that catalyze O2-dependent reactions generally contain iron or copper ions. However, several enzymes are capable of activating O2 at manganese or nickel centers instead, and a handful of dioxygenases exhibit activity when substituted with cobalt. This minireview summarizes the catalytic properties of oxygenases and oxidases with mononuclear Mn, Co, or Ni active sites, including oxalate-degrading oxidases, catechol dioxygenases, and quercetin dioxygenase. In addition, recent developments in the O2 reactivity of synthetic Mn, Co, or Ni complexes are described, with an emphasis on the nature of reactive intermediates featuring superoxo-, peroxo-, or oxo-ligands. Collectively, the biochemical and synthetic studies discussed herein reveal the possibilities and limitations of O2 activation at these three "overlooked" metals.
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116
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Gianetti TL, Rodríguez-Lugo RE, Harmer JR, Trincado M, Vogt M, Santiso-Quinones G, Grützmacher H. Zero-Valent Amino-Olefin Cobalt Complexes as Catalysts for Oxygen Atom Transfer Reactions from Nitrous Oxide. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609173] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Thomas L. Gianetti
- Department of Chemistry and Applied Biosciences; ETH Zürich, Laboratory of Inorganic Chemistry; Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Rafael E. Rodríguez-Lugo
- Department of Chemistry and Applied Biosciences; ETH Zürich, Laboratory of Inorganic Chemistry; Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
- Laboratorio de Química Bioinorgánica; Centro de Química; Instituto Venezolano de Investigaciones Científicas (IVIC); Caracas 1020-A Venezuela
| | - Jeffrey R. Harmer
- Centre for Advanced Imaging; University of Queensland; Brisbane QLD 4072 Australia
| | - Monica Trincado
- Department of Chemistry and Applied Biosciences; ETH Zürich, Laboratory of Inorganic Chemistry; Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Matthias Vogt
- Department of Chemistry and Applied Biosciences; ETH Zürich, Laboratory of Inorganic Chemistry; Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
- Institut für Anorganische Chemie und Kristallographie; Universität Bremen; Leobener Str. NW2 28359 Bremen Germany
| | - Gustavo Santiso-Quinones
- Department of Chemistry and Applied Biosciences; ETH Zürich, Laboratory of Inorganic Chemistry; Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Hansjörg Grützmacher
- Department of Chemistry and Applied Biosciences; ETH Zürich, Laboratory of Inorganic Chemistry; Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
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117
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Gianetti TL, Rodríguez-Lugo RE, Harmer JR, Trincado M, Vogt M, Santiso-Quinones G, Grützmacher H. Zero-Valent Amino-Olefin Cobalt Complexes as Catalysts for Oxygen Atom Transfer Reactions from Nitrous Oxide. Angew Chem Int Ed Engl 2016; 55:15323-15328. [DOI: 10.1002/anie.201609173] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Thomas L. Gianetti
- Department of Chemistry and Applied Biosciences; ETH Zürich, Laboratory of Inorganic Chemistry; Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Rafael E. Rodríguez-Lugo
- Department of Chemistry and Applied Biosciences; ETH Zürich, Laboratory of Inorganic Chemistry; Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
- Laboratorio de Química Bioinorgánica; Centro de Química; Instituto Venezolano de Investigaciones Científicas (IVIC); Caracas 1020-A Venezuela
| | - Jeffrey R. Harmer
- Centre for Advanced Imaging; University of Queensland; Brisbane QLD 4072 Australia
| | - Monica Trincado
- Department of Chemistry and Applied Biosciences; ETH Zürich, Laboratory of Inorganic Chemistry; Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Matthias Vogt
- Department of Chemistry and Applied Biosciences; ETH Zürich, Laboratory of Inorganic Chemistry; Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
- Institut für Anorganische Chemie und Kristallographie; Universität Bremen; Leobener Str. NW2 28359 Bremen Germany
| | - Gustavo Santiso-Quinones
- Department of Chemistry and Applied Biosciences; ETH Zürich, Laboratory of Inorganic Chemistry; Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Hansjörg Grützmacher
- Department of Chemistry and Applied Biosciences; ETH Zürich, Laboratory of Inorganic Chemistry; Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
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118
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Shuler SA, Yin G, Krause SB, Vesper CM, Watson DA. Synthesis of Secondary Unsaturated Lactams via an Aza-Heck Reaction. J Am Chem Soc 2016; 138:13830-13833. [PMID: 27754648 DOI: 10.1021/jacs.6b08932] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The preparation of unsaturated secondary lactams via the palladium-catalyzed cyclization of O-phenyl hydroxamates onto a pendent alkene is reported. This method provides rapid access to a broad range of lactams that are widely useful building blocks in alkaloid synthesis. Mechanistic studies support an aza-Heck-type pathway.
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Affiliation(s)
- Scott A Shuler
- Department of Chemistry and Biochemistry, University of Delaware , Newark, Delaware 19716, United States
| | - Guoyin Yin
- Department of Chemistry and Biochemistry, University of Delaware , Newark, Delaware 19716, United States
| | - Sarah B Krause
- Department of Chemistry and Biochemistry, University of Delaware , Newark, Delaware 19716, United States
| | - Caroline M Vesper
- Department of Chemistry and Biochemistry, University of Delaware , Newark, Delaware 19716, United States
| | - Donald A Watson
- Department of Chemistry and Biochemistry, University of Delaware , Newark, Delaware 19716, United States
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119
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Corona T, Ribas L, Rovira M, Farquhar ER, Ribas X, Ray K, Company A. Characterization and Reactivity Studies of a Terminal Copper-Nitrene Species. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607238] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Teresa Corona
- Grup de Química Bioinspirada, Supramolecular i Catàlisi (QBIS-CAT); Institut de Química Computacional i Catàlisi (IQCC); Departament de Química; Universitat de Girona; Campus Montilivi, E 17003 Girona Catalonia Spain
| | - Lídia Ribas
- Grup de Química Bioinspirada, Supramolecular i Catàlisi (QBIS-CAT); Institut de Química Computacional i Catàlisi (IQCC); Departament de Química; Universitat de Girona; Campus Montilivi, E 17003 Girona Catalonia Spain
| | - Mireia Rovira
- Grup de Química Bioinspirada, Supramolecular i Catàlisi (QBIS-CAT); Institut de Química Computacional i Catàlisi (IQCC); Departament de Química; Universitat de Girona; Campus Montilivi, E 17003 Girona Catalonia Spain
| | - Erik R. Farquhar
- Case Western Reserve University Center for Synchrotron Biosciences and Center for Proteomics and Bioinformatics; National Synchrotron Light Source II; Brookhaven National Laboratory Upton New York 11973 USA
| | - Xavi Ribas
- Grup de Química Bioinspirada, Supramolecular i Catàlisi (QBIS-CAT); Institut de Química Computacional i Catàlisi (IQCC); Departament de Química; Universitat de Girona; Campus Montilivi, E 17003 Girona Catalonia Spain
| | - Kallol Ray
- Department of Chemistry; Humboldt Universität zu Berlin; Brook-Taylor Strasse 2 12489 Berlin Germany
| | - Anna Company
- Grup de Química Bioinspirada, Supramolecular i Catàlisi (QBIS-CAT); Institut de Química Computacional i Catàlisi (IQCC); Departament de Química; Universitat de Girona; Campus Montilivi, E 17003 Girona Catalonia Spain
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120
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Corona T, Ribas L, Rovira M, Farquhar ER, Ribas X, Ray K, Company A. Characterization and Reactivity Studies of a Terminal Copper-Nitrene Species. Angew Chem Int Ed Engl 2016; 55:14005-14008. [PMID: 27723252 DOI: 10.1002/anie.201607238] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Indexed: 11/11/2022]
Abstract
High-valent terminal copper-nitrene species have been postulated as key intermediates in copper-catalyzed aziridination and amination reactions. The high reactivity of these intermediates has prevented their characterization for decades, thereby making the mechanisms ambiguous. Very recently, the Lewis acid adduct of a copper-nitrene intermediate was trapped at -90 °C and shown to be active in various oxidation reactions. Herein, we describe for the first time the synthesis and spectroscopic characterization of a terminal copper(II)-nitrene radical species that is stable at room temperature in the absence of any Lewis acid. The azide derivative of a triazamacrocyclic ligand that had previously been utilized in the stabilization of aryl-CuIII intermediates was employed as an ancillary ligand in the study. The terminal copper(II)-nitrene radical species is able to transfer a nitrene moiety to phosphines and abstract a hydrogen atom from weak C-H bonds, leading to the formation of oxidized products in modest yields.
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Affiliation(s)
- Teresa Corona
- Grup de Química Bioinspirada, Supramolecular i Catàlisi (QBIS-CAT), Institut de Química Computacional i Catàlisi (IQCC), Departament de Química, Universitat de Girona, Campus Montilivi, E, 17003, Girona, Catalonia, Spain
| | - Lídia Ribas
- Grup de Química Bioinspirada, Supramolecular i Catàlisi (QBIS-CAT), Institut de Química Computacional i Catàlisi (IQCC), Departament de Química, Universitat de Girona, Campus Montilivi, E, 17003, Girona, Catalonia, Spain
| | - Mireia Rovira
- Grup de Química Bioinspirada, Supramolecular i Catàlisi (QBIS-CAT), Institut de Química Computacional i Catàlisi (IQCC), Departament de Química, Universitat de Girona, Campus Montilivi, E, 17003, Girona, Catalonia, Spain
| | - Erik R Farquhar
- Case Western Reserve University Center for Synchrotron Biosciences and Center for Proteomics and Bioinformatics, National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York, 11973, USA
| | - Xavi Ribas
- Grup de Química Bioinspirada, Supramolecular i Catàlisi (QBIS-CAT), Institut de Química Computacional i Catàlisi (IQCC), Departament de Química, Universitat de Girona, Campus Montilivi, E, 17003, Girona, Catalonia, Spain.
| | - Kallol Ray
- Department of Chemistry, Humboldt Universität zu Berlin, Brook-Taylor Strasse 2, 12489, Berlin, Germany.
| | - Anna Company
- Grup de Química Bioinspirada, Supramolecular i Catàlisi (QBIS-CAT), Institut de Química Computacional i Catàlisi (IQCC), Departament de Química, Universitat de Girona, Campus Montilivi, E, 17003, Girona, Catalonia, Spain.
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121
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MacLeod KC, Menges FS, McWilliams SF, Craig SM, Mercado BQ, Johnson MA, Holland PL. Alkali-Controlled C-H Cleavage or N-C Bond Formation by N2-Derived Iron Nitrides and Imides. J Am Chem Soc 2016; 138:11185-91. [PMID: 27571271 PMCID: PMC5266523 DOI: 10.1021/jacs.6b04984] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Formation of N-H and N-C bonds from functionalization of N2 is a potential route to utilization of this abundant resource. One of the key challenges is to make the products of N2 activation reactive enough to undergo further reactions under mild conditions. This paper explores the strategy of "alkali control," where the presence of an alkali metal cation enables the reduction of N2 under mild conditions, and then chelation of the alkali metal cation uncovers a highly reactive species that can break benzylic C-H bonds to give new N-H and Fe-C bonds. The ability to "turn on" this C-H activation pathway with 18-crown-6 is demonstrated with three different N2 reduction products of N2 cleavage in an iron-potassium system. The alkali control strategy can also turn on an intermolecular reaction of an N2-derived nitride with methyl tosylate that gives a new N-C bond. Since the transient K(+)-free intermediate reacts with this electrophile but not with the weak C-H bonds in 1,4-cyclohexadiene, it is proposed that the C-H cleavage occurs by a deprotonation mechanism. The combined results demonstrate that a K(+) ion can mask the latent nucleophilicity of N2-derived nitride and imide ligands within a trimetallic iron system and points a way toward control over N2 functionalization.
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Affiliation(s)
- K. Cory MacLeod
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Fabian S. Menges
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Sean F. McWilliams
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Stephanie M. Craig
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Brandon Q. Mercado
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Mark A. Johnson
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Patrick L. Holland
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
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122
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Corcos AR, Pap JS, Yang T, Berry JF. A Synthetic Oxygen Atom Transfer Photocycle from a Diruthenium Oxyanion Complex. J Am Chem Soc 2016; 138:10032-40. [PMID: 27406958 PMCID: PMC5972014 DOI: 10.1021/jacs.6b05942] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Three new diruthenium oxyanion complexes have been prepared, crystallographically characterized, and screened for their potential to photochemically unmask a reactive Ru-Ru═O intermediate. The most promising candidate, Ru2(chp)4ONO2 (4, chp = 6-chloro-2-hydroxypyridinate), displays a set of signals centered around m/z = 733 amu in its MALDI-TOF mass spectrum, consistent with the formation of the [Ru2(chp)4O](+) ([6](+)) ion. These signals shift to 735 amu in 4*, which contains an (18)O-labeled nitrate. EPR spectroscopy and headspace GC-MS analysis indicate that NO2(•) is released upon photolysis of 4, also consistent with the formation of 6. Photolysis of 4 in CH2Cl2 at room temperature in the presence of excess PPh3 yields OPPh3 in 173% yield; control experiments implicate 6, NO2(•), and free NO3(-) as the active oxidants. Notably, Ru2(chp)4Cl (3) is recovered after photolysis. Since 3 is the direct precursor to 4, the results described herein constitute the first example of a synthetic cycle for oxygen atom transfer that makes use of light to generate a putative metal oxo intermediate.
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Affiliation(s)
- Amanda R. Corcos
- Department of Chemistry, University of Wisconsin – Madison, 1101 University Ave., Madison, Wisconsin, 53706, USA
| | - József S. Pap
- Department of Chemistry, University of Wisconsin – Madison, 1101 University Ave., Madison, Wisconsin, 53706, USA
| | - Tzuhsiung Yang
- Department of Chemistry, University of Wisconsin – Madison, 1101 University Ave., Madison, Wisconsin, 53706, USA
| | - John F. Berry
- Department of Chemistry, University of Wisconsin – Madison, 1101 University Ave., Madison, Wisconsin, 53706, USA
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123
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Kim H, Park G, Park J, Chang S. A Facile Access to Primary Alkylamines and Anilines via Ir(III)-Catalyzed C–H Amidation Using Azidoformates. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01869] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Hyunwoo Kim
- Department of Chemistry, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 305-701, Korea
- Center
for Catalytic Hydrocarbon Functionalization, Institute for Basic Science (IBS), Daejeon 305-701, Korea
| | - Gyeongtae Park
- Department of Chemistry, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 305-701, Korea
- Center
for Catalytic Hydrocarbon Functionalization, Institute for Basic Science (IBS), Daejeon 305-701, Korea
| | - Juhyeon Park
- Department of Chemistry, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 305-701, Korea
- Center
for Catalytic Hydrocarbon Functionalization, Institute for Basic Science (IBS), Daejeon 305-701, Korea
| | - Sukbok Chang
- Department of Chemistry, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 305-701, Korea
- Center
for Catalytic Hydrocarbon Functionalization, Institute for Basic Science (IBS), Daejeon 305-701, Korea
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124
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Engelmann X, Monte-Pérez I, Ray K. Oxidationsreaktionen mit bioinspirierten einkernigen Nicht-Häm-Oxidometallkomplexen. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600507] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xenia Engelmann
- Institut für Chemie; Humboldt-Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Deutschland
| | - Inés Monte-Pérez
- Institut für Chemie; Humboldt-Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Deutschland
| | - Kallol Ray
- Institut für Chemie; Humboldt-Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Deutschland
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125
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Bagh B, Broere DLJ, Siegler MA, van der Vlugt JI. Redox-Active-Ligand-Mediated Formation of an Acyclic Trinuclear Ruthenium Complex with Bridging Nitrido Ligands. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603659] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Bidraha Bagh
- Homogeneous, Bioinspired and Supramolecular Catalysis, Van't Hoff Institute for Molecular Sciences; University of Amsterdam; Science Park 904 1098 XH Amsterdam The Netherlands
| | - Daniël L. J. Broere
- Homogeneous, Bioinspired and Supramolecular Catalysis, Van't Hoff Institute for Molecular Sciences; University of Amsterdam; Science Park 904 1098 XH Amsterdam The Netherlands
| | - Maxime A. Siegler
- Small Molecule X-ray Crystallography Facility, Department of Chemistry; John Hopkins University; Baltimore MD 21218 USA
| | - Jarl Ivar van der Vlugt
- Homogeneous, Bioinspired and Supramolecular Catalysis, Van't Hoff Institute for Molecular Sciences; University of Amsterdam; Science Park 904 1098 XH Amsterdam The Netherlands
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126
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Bagh B, Broere DLJ, Siegler MA, van der Vlugt JI. Redox-Active-Ligand-Mediated Formation of an Acyclic Trinuclear Ruthenium Complex with Bridging Nitrido Ligands. Angew Chem Int Ed Engl 2016; 55:8381-5. [PMID: 27321547 DOI: 10.1002/anie.201603659] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Indexed: 01/24/2023]
Abstract
Coordination of a redox-active pyridine aminophenol ligand to Ru(II) followed by aerobic oxidation generates two diamagnetic Ru(III) species [1 a (cis) and 1 b (trans)] with ligand-centered radicals. The reaction of 1 a/1 b with excess NaN3 under inert atmosphere resulted in the formation of a rare bis(nitrido)-bridged trinuclear ruthenium complex with two nonlinear asymmetrical Ru-N-Ru fragments. The spontaneous reduction of the ligand centered radical in the parent 1 a/1 b supports the oxidation of a nitride (N(3-) ) to half an equivalent of N2 . The trinuclear omplex is reactive toward TEMPO-H, tin hydrides, thiols, and dihydrogen.
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Affiliation(s)
- Bidraha Bagh
- Homogeneous, Bioinspired and Supramolecular Catalysis, Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098, XH, Amsterdam, The Netherlands
| | - Daniël L J Broere
- Homogeneous, Bioinspired and Supramolecular Catalysis, Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098, XH, Amsterdam, The Netherlands
| | - Maxime A Siegler
- Small Molecule X-ray Crystallography Facility, Department of Chemistry, John Hopkins University, Baltimore, MD, 21218, USA
| | - Jarl Ivar van der Vlugt
- Homogeneous, Bioinspired and Supramolecular Catalysis, Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098, XH, Amsterdam, The Netherlands.
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127
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Engelmann X, Monte-Pérez I, Ray K. Oxidation Reactions with Bioinspired Mononuclear Non-Heme Metal-Oxo Complexes. Angew Chem Int Ed Engl 2016; 55:7632-49. [DOI: 10.1002/anie.201600507] [Citation(s) in RCA: 207] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Revised: 03/15/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Xenia Engelmann
- Department of Chemistry; Humboldt-Universität zu Berlin; Brook-Taylor-Strasse 2 12489 Berlin Germany
| | - Inés Monte-Pérez
- Department of Chemistry; Humboldt-Universität zu Berlin; Brook-Taylor-Strasse 2 12489 Berlin Germany
| | - Kallol Ray
- Department of Chemistry; Humboldt-Universität zu Berlin; Brook-Taylor-Strasse 2 12489 Berlin Germany
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128
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So YM, Li Y, Au-Yeung KC, Wang GC, Wong KL, Sung HHY, Arnold PL, Williams ID, Lin Z, Leung WH. Probing the Reactivity of the Ce═O Multiple Bond in a Cerium(IV) Oxo Complex. Inorg Chem 2016; 55:10003-10012. [DOI: 10.1021/acs.inorgchem.6b00480] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yat-Ming So
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
| | - Yang Li
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
| | - Ka-Chun Au-Yeung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
| | - Guo-Cang Wang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
| | - Kang-Long Wong
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
| | - Herman H. Y. Sung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
| | - Polly L. Arnold
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building,
The King’s Buildings, Edinburgh EH9
3FJ, U.K
| | - Ian D. Williams
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
| | - Wa-Hung Leung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
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129
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Kim H, Chang S. Transition-Metal-Mediated Direct C–H Amination of Hydrocarbons with Amine Reactants: The Most Desirable but Challenging C–N Bond-Formation Approach. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00293] [Citation(s) in RCA: 219] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Hyunwoo Kim
- Department
of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 307-701, Republic of Korea
- Center
for Catalytic Hydrocarbon Functionalizations, Institute of Basic Science (IBS), Daejeon 307-701, Republic of Korea
| | - Sukbok Chang
- Department
of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 307-701, Republic of Korea
- Center
for Catalytic Hydrocarbon Functionalizations, Institute of Basic Science (IBS), Daejeon 307-701, Republic of Korea
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130
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Vardhaman AK, Lee YM, Jung J, Ohkubo K, Nam W, Fukuzumi S. Enhanced Electron Transfer Reactivity of a Nonheme Iron(IV)-Imido Complex as Compared to the Iron(IV)-Oxo Analogue. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600287] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Anil Kumar Vardhaman
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
| | - Yong-Min Lee
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
| | - Jieun Jung
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
| | - Kei Ohkubo
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
- Faculty of Science and Engineering, ALCA, SENTAN; Japan Science and Technology Agency (JST); Meijo University; Nagoya Aichi 468-0073 Japan
- Department of Material and Life Science, Graduate School of Engineering, ALCA, SENTAN; Japan Science and Technology Agency (JST); Osaka University; Suita Osaka 565-0871 Japan
| | - Wonwoo Nam
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
| | - Shunichi Fukuzumi
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
- Faculty of Science and Engineering, ALCA, SENTAN; Japan Science and Technology Agency (JST); Meijo University; Nagoya Aichi 468-0073 Japan
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131
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Vardhaman AK, Lee YM, Jung J, Ohkubo K, Nam W, Fukuzumi S. Enhanced Electron Transfer Reactivity of a Nonheme Iron(IV)-Imido Complex as Compared to the Iron(IV)-Oxo Analogue. Angew Chem Int Ed Engl 2016; 55:3709-13. [PMID: 26890463 DOI: 10.1002/anie.201600287] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 01/26/2016] [Indexed: 01/09/2023]
Abstract
Reactions of N,N-dimethylaniline (DMA) with nonheme iron(IV)-oxo and iron(IV)-tosylimido complexes occur via different mechanisms, such as an N-demethylation of DMA by a nonheme iron(IV)-oxo complex or an electron transfer dimerization of DMA by a nonheme iron(IV)-tosylimido complex. The change in the reaction mechanism results from the greatly enhanced electron transfer reactivity of the iron(IV)-tosylimido complex, such as the much more positive one-electron reduction potential and the smaller reorganization energy during electron transfer, as compared to the electron transfer properties of the corresponding iron(IV)-oxo complex.
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Affiliation(s)
- Anil Kumar Vardhaman
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Korea
| | - Yong-Min Lee
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Korea
| | - Jieun Jung
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Korea
| | - Kei Ohkubo
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Korea.,Faculty of Science and Engineering, ALCA, SENTAN, Japan Science and Technology Agency (JST), Meijo University, Nagoya, Aichi, 468-0073, Japan.,Department of Material and Life Science, Graduate School of Engineering, ALCA, SENTAN, Japan Science and Technology Agency (JST), Osaka University, Suita, Osaka, 565-0871, Japan
| | - Wonwoo Nam
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Korea.
| | - Shunichi Fukuzumi
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 03760, Korea.,Faculty of Science and Engineering, ALCA, SENTAN, Japan Science and Technology Agency (JST), Meijo University, Nagoya, Aichi, 468-0073, Japan
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132
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Bellow JA, Yousif M, Groysman S. Discrete Complexes of 3d Metals with Monodentate Bulky Alkoxide Ligands and Their Reactivity in Bond Activation and Bond Formation Reactions. COMMENT INORG CHEM 2016. [DOI: 10.1080/02603594.2015.1108913] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- James A. Bellow
- Department of Chemistry, Wayne State University, Detroit, Michigan, USA
| | - Maryam Yousif
- Department of Chemistry, Wayne State University, Detroit, Michigan, USA
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133
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Kundu S, Chernev P, Engelmann X, Chung CS, Dau H, Bill E, England J, Nam W, Ray K. A cobalt(ii) iminoiodane complex and its scandium adduct: mechanistic promiscuity in hydrogen atom abstraction reactions. Dalton Trans 2016; 45:14538-43. [DOI: 10.1039/c6dt01815g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
In addition to imidometal [Mn+NR] units, transient metal–iminoiodane [M(n−2)+−N(R)IPh] adducts have been demonstrated as a possible “second oxidant” responsible for the imido group transfer reactivity.
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Affiliation(s)
- Subrata Kundu
- Humboldt-Universität zu Berlin
- Institut für Chemie
- D-12489 Berlin
- Germany
| | - Petko Chernev
- Freie Universität Berlin
- FB Physik
- D-14195-Berlin
- Germany
| | - Xenia Engelmann
- Humboldt-Universität zu Berlin
- Institut für Chemie
- D-12489 Berlin
- Germany
| | - Chan Siu Chung
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Holger Dau
- Freie Universität Berlin
- FB Physik
- D-14195-Berlin
- Germany
| | - Eckhard Bill
- Max-Plank-Institut für Chemische Energiekonversion
- D-45470 Mülheim an der Ruhr
- Germany
| | - Jason England
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Wonwoo Nam
- Department of Chemistry and Nano Science
- Center for Biomimetic System
- Ewha Womans University
- Seoul 120-750
- Korea
| | - Kallol Ray
- Humboldt-Universität zu Berlin
- Institut für Chemie
- D-12489 Berlin
- Germany
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134
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Zhang Y, Fanna DJ, Shepherd ND, Karatchevtseva I, Lu K, Kong L, Price JR. Dioxo-vanadium(v), oxo-rhenium(v) and dioxo-uranium(vi) complexes with a tridentate Schiff base ligand. RSC Adv 2016. [DOI: 10.1039/c6ra12872f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The complexation of a tridentate Schiff base ligand with three oxo-metal ions lead to the formations of four new complexes.
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Affiliation(s)
- Yingjie Zhang
- Australian Nuclear Science and Technology Organisation
- Kirrawee DC
- Australia
| | - Daniel J. Fanna
- School of Science and Health
- Western Sydney University
- Penrith
- Australia
| | - Nicholas D. Shepherd
- Australian Nuclear Science and Technology Organisation
- Kirrawee DC
- Australia
- School of Science and Health
- Western Sydney University
| | | | - Kim Lu
- Australian Nuclear Science and Technology Organisation
- Kirrawee DC
- Australia
| | - Linggen Kong
- Australian Nuclear Science and Technology Organisation
- Kirrawee DC
- Australia
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135
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Ure AD, Lázaro IA, Cotter M, McDonald AR. Synthesis and characterisation of a mesocyclic tripodal triamine ligand. Org Biomol Chem 2016; 14:483-494. [DOI: 10.1039/c5ob01556a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The preparation and characterisation of mesocyclic polydentate amine ligands is described. The novel tridentate ligands will be employed in the stabilisation of highly reactive high-valent oxidants.
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Affiliation(s)
- Andrew D. Ure
- School of Chemistry and CRANN/AMBER Nanoscience Institute
- Trinity College Dublin
- The University of Dublin
- College Green
- Dublin 2
| | - Isabel Abánades Lázaro
- School of Chemistry and CRANN/AMBER Nanoscience Institute
- Trinity College Dublin
- The University of Dublin
- College Green
- Dublin 2
| | - Michelle Cotter
- School of Chemistry and CRANN/AMBER Nanoscience Institute
- Trinity College Dublin
- The University of Dublin
- College Green
- Dublin 2
| | - Aidan R. McDonald
- School of Chemistry and CRANN/AMBER Nanoscience Institute
- Trinity College Dublin
- The University of Dublin
- College Green
- Dublin 2
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136
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Hartmann NJ, Wu G, Hayton TW. Synthesis of a "Masked" Terminal Nickel(II) Sulfide by Reductive Deprotection and its Reaction with Nitrous Oxide. Angew Chem Int Ed Engl 2015; 54:14956-9. [PMID: 26457792 DOI: 10.1002/anie.201508232] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Indexed: 11/07/2022]
Abstract
The addition of 1 equiv of KSCPh3 to [L(R)NiCl] (L(R) = {(2,6-iPr2C6H3)NC(R)}2CH; R = Me, tBu) in C6H6 results in the formation of [L(R)Ni(SCPh3)] (1: R = Me; 2: R = tBu) in good yields. Subsequent reduction of 1 and 2 with 2 equiv of KC8 in cold (-25 °C) Et2O in the presence of 2 equiv of 18-crown-6 results in the formation of "masked" terminal Ni(II) sulfides, [K(18-crown-6)][L(R)Ni(S)] (3: R = Me; 4: R = tBu), also in good yields. An X-ray crystallographic analysis of these complexes suggests that they feature partial multiple-bond character in their Ni-S linkages. Addition of N2O to a toluene solution of 4 provides [K(18-crown-6)][L(tBu)Ni(SN=NO)], which features the first example of a thiohyponitrite (κ(2)-[SN=NO](2-)) ligand.
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Affiliation(s)
- Nathaniel J Hartmann
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106 (USA)
| | - Guang Wu
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106 (USA)
| | - Trevor W Hayton
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106 (USA).
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137
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Hartmann NJ, Wu G, Hayton TW. Synthesis of a “Masked” Terminal Nickel(II) Sulfide by Reductive Deprotection and its Reaction with Nitrous Oxide. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508232] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Nathaniel J. Hartmann
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106 (USA)
| | - Guang Wu
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106 (USA)
| | - Trevor W. Hayton
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106 (USA)
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138
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Kim H, Chang S. Iridium-Catalyzed Direct C–H Amination with Alkylamines: Facile Oxidative Insertion of Amino Group into Iridacycle. ACS Catal 2015. [DOI: 10.1021/acscatal.5b02165] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hyunwoo Kim
- Department of Chemistry, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 305-701, Korea
- Center
for Catalytic Hydrocarbon Functionalization, Institute for Basic Science (IBS), Daejeon 305-701, Korea
| | - Sukbok Chang
- Department of Chemistry, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 305-701, Korea
- Center
for Catalytic Hydrocarbon Functionalization, Institute for Basic Science (IBS), Daejeon 305-701, Korea
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139
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Turlington CR, White PS, Brookhart M, Templeton JL. Half-sandwich Rh(Cp*) and Ir(Cp*) complexes with oxygen atom transfer reagents as ligands. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.02.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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140
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Morris RS, Lavoie GG. Strong π-interactions between tantalum and apical ligands in square pyramidal complexes supported by a rigid tetradentate spectator ligand. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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141
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Baumgarth H, Braun T, Braun B, Laubenstein R, Herrmann R. Synthesis of an Iridium Peroxido Complex and Its Reactivity Towards Brønsted Acids. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500384] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hanna Baumgarth
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, Germany, http://www2.hu‐berlin.de/chemie/braun
| | - Thomas Braun
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, Germany, http://www2.hu‐berlin.de/chemie/braun
| | - Beatrice Braun
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, Germany, http://www2.hu‐berlin.de/chemie/braun
| | - Reik Laubenstein
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, Germany, http://www2.hu‐berlin.de/chemie/braun
| | - Roy Herrmann
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, Germany, http://www2.hu‐berlin.de/chemie/braun
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142
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Bellow JA, Yousif M, Cabelof AC, Lord RL, Groysman S. Reactivity Modes of an Iron Bis(alkoxide) Complex with Aryl Azides: Catalytic Nitrene Coupling vs Formation of Iron(III) Imido Dimers. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00231] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- James A. Bellow
- Department
of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Maryam Yousif
- Department
of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Alyssa C. Cabelof
- Department
of Chemistry, Grand Valley State University, Allendale, Michigan 49401, United States
| | - Richard L. Lord
- Department
of Chemistry, Grand Valley State University, Allendale, Michigan 49401, United States
| | - Stanislav Groysman
- Department
of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
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143
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Abram SL, Monte-Pérez I, Pfaff FF, Farquhar ER, Ray K. Evidence of two-state reactivity in alkane hydroxylation by Lewis-acid bound copper-nitrene complexes. Chem Commun (Camb) 2015; 50:9852-4. [PMID: 25025824 DOI: 10.1039/c4cc03754e] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The behavior of the Lewis-acid adducts of two copper-nitrene [Cu(NR)](+) complexes in nitrene-transfer and H-atom abstraction reactions have been demonstrated to depend on the nature of the nitrene substituents. Two-state reactivity, in which a singlet ground state and a nearby triplet excited-state both contribute, provides a useful model for interpreting reactivity trends of the two compounds.
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Affiliation(s)
- Sarah-Luise Abram
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Straße 2, D-12489 Berlin, Germany.
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144
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Vreeken V, Siegler MA, de Bruin B, Reek JNH, Lutz M, van der Vlugt JI. CH Activation of Benzene by a Photoactivated NiII(azide): Formation of a Transient Nickel Nitrido Complex. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501437] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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145
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Vreeken V, Siegler MA, de Bruin B, Reek JNH, Lutz M, van der Vlugt JI. C-H Activation of Benzene by a Photoactivated Ni(II)(azide): Formation of a Transient Nickel Nitrido Complex. Angew Chem Int Ed Engl 2015; 54:7055-9. [PMID: 25925657 DOI: 10.1002/anie.201501437] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 03/27/2015] [Indexed: 11/08/2022]
Abstract
Photochemical activation of nickel-azido complex 2 [Ni(N3)(PNP)] (PN(H)P=2,2'-di(isopropylphosphino)-4,4'-ditolylamine) in neat benzene produces diamagnetic complex 3 [Ni(Ph)(PN(P)N(H))], which is crystallographically characterized. DFT calculations support photoinitiated N2-loss of the azido complex to generate a rare, transient Ni(IV) nitrido species, which bears significant nitridyl radical character. Subsequent trapping of this nitrido through insertion into the Ni-P bond generates a coordinatively unsaturated Ni(II) imidophosphorane P=N donor. This species shows unprecedented reactivity toward 1,2-addition of a C-H bond of benzene to form 3. The structurally characterized chlorido complex 4 [Ni(Cl)(PN(P)N(H))] is generated by reaction of 3 with HCl or by direct photolysis of 2 in chlorobenzene. This is the first report of aromatic C-H bond activation by a trapped transient nitrido species of a late transition metal.
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Affiliation(s)
- Vincent Vreeken
- Homogeneous, Bioinspired & Supramolecular Catalysis van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam (The Netherlands)
| | - Maxime A Siegler
- Department of Chemistry, John Hopkins University, 3400 N Charles Street, Baltimore, MD 21218 (USA)
| | - Bas de Bruin
- Homogeneous, Bioinspired & Supramolecular Catalysis van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam (The Netherlands)
| | - Joost N H Reek
- Homogeneous, Bioinspired & Supramolecular Catalysis van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam (The Netherlands)
| | - Martin Lutz
- Department of Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht (The Netherlands)
| | - Jarl Ivar van der Vlugt
- Homogeneous, Bioinspired & Supramolecular Catalysis van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam (The Netherlands).
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146
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High-valent metal-oxo intermediates in energy demanding processes: from dioxygen reduction to water splitting. Curr Opin Chem Biol 2015; 25:159-71. [DOI: 10.1016/j.cbpa.2015.01.014] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Revised: 01/20/2015] [Accepted: 01/21/2015] [Indexed: 11/15/2022]
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147
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Abstract
In order to address how diverse metalloprotein active sites, in particular those containing iron and copper, guide O₂binding and activation processes to perform diverse functions, studies of synthetic models of the active sites have been performed. These studies have led to deep, fundamental chemical insights into how O₂coordinates to mono- and multinuclear Fe and Cu centers and is reduced to superoxo, peroxo, hydroperoxo, and, after O-O bond scission, oxo species relevant to proposed intermediates in catalysis. Recent advances in understanding the various factors that influence the course of O₂activation by Fe and Cu complexes are surveyed, with an emphasis on evaluating the structure, bonding, and reactivity of intermediates involved. The discussion is guided by an overarching mechanistic paradigm, with differences in detail due to the involvement of disparate metal ions, nuclearities, geometries, and supporting ligands providing a rich tapestry of reaction pathways by which O₂is activated at Fe and Cu sites.
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148
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Waterman R, Mindiola DJ, Clough CR, Hillhouse GL. Synthesis, structure, and reactivity of platinum compounds featuring terminal amido and phosphido ligands. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.07.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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149
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Ray K, Pfaff FF, Wang B, Nam W. Status of Reactive Non-Heme Metal–Oxygen Intermediates in Chemical and Enzymatic Reactions. J Am Chem Soc 2014; 136:13942-58. [DOI: 10.1021/ja507807v] [Citation(s) in RCA: 351] [Impact Index Per Article: 35.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Kallol Ray
- Department
of Chemistry, Humboldt-Universität zu Berlin, 12489 Berlin, Germany
| | - Florian Felix Pfaff
- Department
of Chemistry, Humboldt-Universität zu Berlin, 12489 Berlin, Germany
| | - Bin Wang
- Department
of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea
| | - Wonwoo Nam
- Department
of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea
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150
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Hong S, Pfaff FF, Kwon E, Wang Y, Seo MS, Bill E, Ray K, Nam W. Spectroscopic capture and reactivity of a low-spin cobalt(IV)-oxo complex stabilized by binding redox-inactive metal ions. Angew Chem Int Ed Engl 2014; 53:10403-10407. [PMID: 25081948 PMCID: PMC4506312 DOI: 10.1002/anie.201405874] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Indexed: 11/05/2022]
Abstract
High-valent cobalt-oxo intermediates are proposed as reactive intermediates in a number of cobalt-complex-mediated oxidation reactions. Herein we report the spectroscopic capture of low-spin (S=1/2) Co(IV)-oxo species in the presence of redox-inactive metal ions, such as Sc(3+), Ce(3+), Y(3+), and Zn(2+), and the investigation of their reactivity in C-H bond activation and sulfoxidation reactions. Theoretical calculations predict that the binding of Lewis acidic metal ions to the cobalt-oxo core increases the electrophilicity of the oxygen atom, resulting in the redox tautomerism of a highly unstable [(TAML)Co(III)(O˙)](2-) species to a more stable [(TAML)Co(IV)(O)(M(n+))] core. The present report supports the proposed role of the redox-inactive metal ions in facilitating the formation of high-valent metal-oxo cores as a necessary step for oxygen evolution in chemistry and biology.
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Affiliation(s)
- Seungwoo Hong
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea
| | - Florian Felix Pfaff
- Humboldt-Universität zu Berlin, Department of Chemistry, Brook Taylor Strasse 2, 12489 Berlin, Germany
| | - Eunji Kwon
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea
| | - Yong Wang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian 116023, China
| | - Mi-Sook Seo
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea
| | - Eckhard Bill
- Max-Plank-Institut für chemische Energiekonversion, Mülheim an der Ruhr (Germany)
| | - Kallol Ray
- Humboldt-Universität zu Berlin, Department of Chemistry, Brook Taylor Strasse 2, 12489 Berlin, Germany
| | - Wonwoo Nam
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea
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