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Ward RJ, Rungthanaphatsophon P, Huang P, Kelley SP, Walensky JR. Cooperative dihydrogen activation with unsupported uranium-metal bonds and characterization of a terminal U(iv) hydride. Chem Sci 2023; 14:12255-12263. [PMID: 37969582 PMCID: PMC10631237 DOI: 10.1039/d3sc04857h] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 10/13/2023] [Indexed: 11/17/2023] Open
Abstract
Cooperative chemistry between two or more metal centres can show enhanced reactivity compared to the monometallic fragments. Given the paucity of actinide-metal bonds, especially those with group 13, we targeted uranium(iii)-aluminum(i) and -gallium(i) complexes as we envisioned the low-valent oxidation state of both metals would lead to novel, cooperative reactivity. Herein, we report the molecular structure of [(C5Me5)2(MesO)U-E(C5Me5)], E = Al, Ga, Mes = 2,4,6-Me3C6H2, and their reactivity with dihydrogen. The reaction of H2 with the U(iii)-Al(i) complex affords a trihydroaluminate complex, [(C5Me5)2(MesO)U(μ2-(H)3)-Al(C5Me5)] through a formal three-electron metal-based reduction, with concomitant formation of a terminal U(iv) hydride, [(C5Me5)2(MesO)U(H)]. Noteworthy is that neither U(iii) complexes nor [(C5Me5)Al]4 are capable of reducing dihydrogen on their own. To make the terminal hydride in higher yields, the reaction of [(C5Me5)2(MesO)U(THF)] with half an equivalent of diethylzinc generates [(C5Me5)2(MesO)U(CH2CH3)] or treatment of [(C5Me5)2U(i)(Me)] with KOMes forms [(C5Me5)2(MesO)U(CH3)], which followed by hydrogenation with either complex cleanly affords [(C5Me5)2(MesO)U(H)]. All complexes have been characterized by spectroscopic and structural methods and are rare examples of cooperative chemistry in f element chemistry, dihydrogen activation, and stable, terminal ethyl and hydride compounds with an f element.
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Affiliation(s)
- Robert J Ward
- Department of Chemistry, University of Missouri Columbia MO 65211 USA
| | | | - Patrick Huang
- Department of Chemistry & Biochemistry, California State University East Bay Hayward CA 94542 USA
| | - Steven P Kelley
- Department of Chemistry, University of Missouri Columbia MO 65211 USA
| | - Justin R Walensky
- Department of Chemistry, University of Missouri Columbia MO 65211 USA
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2
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Bae DY, Lee G, Lee E. Fixation of Dinitrogen at an Asymmetric Binuclear Titanium Complex. Inorg Chem 2021; 60:12813-12822. [PMID: 34492761 DOI: 10.1021/acs.inorgchem.1c01050] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A new type of dititanium dinitrogen complex supported by a triphenolamine (TPA) ligand is reported. Analysis by single-crystal X-ray diffraction and Raman and NMR spectroscopy reveals different coordination geometries for the two titanium centers. Hence, coordination of TPA and a nitrogen ligand results in trigonal-bipyramidal geometry, while an octahedral titanium center is obtained upon additional coordination of an ethoxide generated upon C-O bond cleavage in a diethyl ether solvent molecule. The titanium complex successfully generates ammonia in the presence of an excess amount of PCy3HI and KC8 in 154% yield (per titanium atom). A titanium complex with a bulkier TPA does not form a dinitrogen complex, and mononuclear titanium dinitrogen complexes were not accessible, presumably because of the high tendency of early transition metals to form binuclear dinitrogen complexes.
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Affiliation(s)
- Dae Young Bae
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Gunhee Lee
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Eunsung Lee
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
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Successive Activation of C–H and C–O Bonds of Vinyl Ethers by a Diphosphine and Hydrido-Bridged Diiridium Complex. INORGANICS 2019. [DOI: 10.3390/inorganics7100121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The reaction of [(Cp*Ir)2(μ-dmpm)(μ-H)][OTf] (2) [Cp* = η5-C5Me5, dmpm = bis(dimethylphosphino)methane] with 2,3-dihydrofuran gives [(Cp*IrH)2(μ-dmpm){μ-(2,3-dihydrofuranyl)}][OTf] (3) in an isolated yield of 70% via the C–H bond activation at the 5-position of 2,3-dihydrofuran. Complex 3 is slowly converted into [(Cp*Ir)2(μ-dmpm)(μ-C=C(H)CH2CH2OH)][OTf] (4) quantitatively via the proton-mediated C–O bond activation. The reaction of 2 with ethyl vinyl ether gives [(Cp*Ir)2(μ-dmpm)(μ-CH=CH2)][OTf] (5) in the isolated yield of 64% via the successive activation of C–H and C–O bonds.
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4
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Matt C, Kölblin F, Streuff J. Reductive C–O, C–N, and C–S Cleavage by a Zirconium Catalyzed Hydrometalation/β-Elimination Approach. Org Lett 2019; 21:6983-6988. [DOI: 10.1021/acs.orglett.9b02572] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Christof Matt
- Albert-Ludwigs-Universität Freiburg, Institut für Organische Chemie, Albertstr. 21, 79104 Freiburg, Germany
| | - Frederic Kölblin
- Albert-Ludwigs-Universität Freiburg, Institut für Organische Chemie, Albertstr. 21, 79104 Freiburg, Germany
| | - Jan Streuff
- Albert-Ludwigs-Universität Freiburg, Institut für Organische Chemie, Albertstr. 21, 79104 Freiburg, Germany
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Nakanishi Y, Ishida Y, Kawaguchi H. An anionic η2-naphthalene complex of titanium supported by a tripodal [O3C] ligand and its reactions with dinitrogen, anthracene and THF. Dalton Trans 2018; 47:6903-6907. [DOI: 10.1039/c8dt01161c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
An η2-naphthalene titanium complex supported by a tripodal ligand reacts with N2 to produce a strongly activated N2 complex.
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Affiliation(s)
- Yusuke Nakanishi
- Department of Chemistry
- Tokyo Institute of Technology
- Tokyo 152-8551
- Japan
| | - Yutaka Ishida
- Department of Chemistry
- Tokyo Institute of Technology
- Tokyo 152-8551
- Japan
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7
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Liu D, Qiu Z, Xie Z. Reactivity of mixed-sandwich zirconacarborane alkyls with polar unsaturated molecules. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.03.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Kamitani M, Searles K, Chen CH, Carroll PJ, Mindiola DJ. β-Hydrogen Abstraction of an Ethyl Group Provides Entry to Titanium and Zirconium Ethylene Complexes. Organometallics 2015. [DOI: 10.1021/om501226k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Masahiro Kamitani
- Department
of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Keith Searles
- Department
of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Chun-Hsing Chen
- Department
of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405, United States
| | - Patrick J. Carroll
- Department
of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Daniel J. Mindiola
- Department
of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
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9
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Coordination diversity of the phenazine ligand in binuclear transition metal sandwich complexes: Theoretical investigation. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.07.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Oishi M, Oshima M, Suzuki H. A Study on Zr–Ir Multiple Bonding Active for C–H Bond Cleavage. Inorg Chem 2014; 53:6634-54. [PMID: 24915499 DOI: 10.1021/ic500258g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Masataka Oishi
- Graduate
School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Masato Oshima
- School
of Engineering, Tokyo Polytechnic University, 1583 Iiyama, Atsugi-shi, Kanagawa 243-0297, Japan
| | - Hiroharu Suzuki
- Graduate
School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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11
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Saito T, Nishiyama H, Tanahashi H, Kawakita K, Tsurugi H, Mashima K. 1,4-Bis(trimethylsilyl)-1,4-diaza-2,5-cyclohexadienes as Strong Salt-Free Reductants for Generating Low-Valent Early Transition Metals with Electron-Donating Ligands. J Am Chem Soc 2014; 136:5161-70. [DOI: 10.1021/ja501313s] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Teruhiko Saito
- Department
of Chemistry, Graduate School of Engineering Science, Osaka University, and CREST, JST, Toyonaka, Osaka 560-8531, Japan
| | - Haruka Nishiyama
- Department
of Chemistry, Graduate School of Engineering Science, Osaka University, and CREST, JST, Toyonaka, Osaka 560-8531, Japan
| | - Hiromasa Tanahashi
- Department
of Chemistry, Graduate School of Engineering Science, Osaka University, and CREST, JST, Toyonaka, Osaka 560-8531, Japan
| | - Kento Kawakita
- Department
of Chemistry, Graduate School of Engineering Science, Osaka University, and CREST, JST, Toyonaka, Osaka 560-8531, Japan
| | - Hayato Tsurugi
- Department
of Chemistry, Graduate School of Engineering Science, Osaka University, and CREST, JST, Toyonaka, Osaka 560-8531, Japan
| | - Kazushi Mashima
- Department
of Chemistry, Graduate School of Engineering Science, Osaka University, and CREST, JST, Toyonaka, Osaka 560-8531, Japan
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12
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Kundu S, Choi J, Wang DY, Choliy Y, Emge TJ, Krogh-Jespersen K, Goldman AS. Cleavage of Ether, Ester, and Tosylate C(sp3)–O Bonds by an Iridium Complex, Initiated by Oxidative Addition of C–H Bonds. Experimental and Computational Studies. J Am Chem Soc 2013; 135:5127-43. [DOI: 10.1021/ja312464b] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Sabuj Kundu
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick,
New Jersey 08903, United States
| | - Jongwook Choi
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick,
New Jersey 08903, United States
| | - David Y. Wang
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick,
New Jersey 08903, United States
| | - Yuriy Choliy
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick,
New Jersey 08903, United States
| | - Thomas J. Emge
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick,
New Jersey 08903, United States
| | - Karsten Krogh-Jespersen
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick,
New Jersey 08903, United States
| | - Alan S. Goldman
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick,
New Jersey 08903, United States
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13
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Dolci S, Marchetti F, Pampaloni G, Zacchini S. The Reactivity of Molybdenum Pentachloride with Ester Molecules: Ester Activation, Metal Reduction, and Synthesis of 1D Coordination Polymers. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201201217] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Chekkal F, Zendaoui SM, Zouchoune B, Saillard JY. Structural and spin diversity of M(indenyl)2 transition-metal complexes: a DFT investigation. NEW J CHEM 2013. [DOI: 10.1039/c3nj00196b] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Marchetti F, Pampaloni G, Zacchini S. The reactivity of molybdenum pentachloride with ethers: routes to the synthesis of MoIVCl4 adducts, Mo(v) chlorido-alkoxides and Mo(v) oxydo-chlorides. Dalton Trans 2013; 42:15226-34. [DOI: 10.1039/c3dt51797g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Crestani MG, Olasz A, Pinter B, Bailey BC, Fortier S, Gao X, Chen CH, Baik MH, Mindiola DJ. Understanding the competitive dehydroalkoxylation and dehydrogenation of ethers with Ti–C multiple bonds. Chem Sci 2013. [DOI: 10.1039/c3sc22195d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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17
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Jian Z, Petrov AR, Hangaly NK, Li S, Rong W, Mou Z, Rufanov KA, Harms K, Sundermeyer J, Cui D. Phosphazene-Functionalized Cyclopentadienyl and Its Derivatives Ligated Rare-Earth Metal Alkyl Complexes: Synthesis, Structures, and Catalysis on Ethylene Polymerization. Organometallics 2012. [DOI: 10.1021/om300263p] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Zhongbao Jian
- State Key Laboratory of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- Graduate School of the Chinese Academy of Sciences, Beijing 100039,
China
| | - Alex R. Petrov
- Fachbereich Chemie der Philipps-Universität Marburg, Hans-Meerwein-Strasse,
35032 Marburg, Germany
| | - Noa K. Hangaly
- Fachbereich Chemie der Philipps-Universität Marburg, Hans-Meerwein-Strasse,
35032 Marburg, Germany
| | - Shihui Li
- State Key Laboratory of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Weifeng Rong
- State Key Laboratory of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- Graduate School of the Chinese Academy of Sciences, Beijing 100039,
China
| | - Zehuai Mou
- State Key Laboratory of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- Graduate School of the Chinese Academy of Sciences, Beijing 100039,
China
| | - Konstantin A. Rufanov
- Fachbereich Chemie der Philipps-Universität Marburg, Hans-Meerwein-Strasse,
35032 Marburg, Germany
- Department of Chemistry, M. V. Lomonosov University of Moscow, 119992, Moscow,
Russia
| | - Klaus Harms
- Fachbereich Chemie der Philipps-Universität Marburg, Hans-Meerwein-Strasse,
35032 Marburg, Germany
| | - Jörg Sundermeyer
- Fachbereich Chemie der Philipps-Universität Marburg, Hans-Meerwein-Strasse,
35032 Marburg, Germany
| | - Dongmei Cui
- State Key Laboratory of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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18
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Maekawa M, Daniliuc CG, Freytag M, Jones PG, Walter MD. Complexes of manganese, iron and cobalt with sterically demanding indenyl ligands. Dalton Trans 2012; 41:10317-27. [PMID: 22772481 DOI: 10.1039/c2dt31136d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Miyuki Maekawa
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Braunschweig, Germany
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19
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Glöckner A, Bauer H, Maekawa M, Bannenberg T, Daniliuc CG, Jones PG, Sun Y, Sitzmann H, Tamm M, Walter MD. How big is a Cp? Cycloheptatrienyl zirconium complexes with bulky cyclopentadienyl and indenyl ligands. Dalton Trans 2012; 41:6614-24. [DOI: 10.1039/c2dt12132h] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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20
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Marchetti F, Pampaloni G. Interaction of niobium and tantalum pentahalides with O-donors: coordination chemistry and activation reactions. Chem Commun (Camb) 2012; 48:635-53. [DOI: 10.1039/c1cc14592d] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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21
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Chapman AM, Haddow MF, Wass DF. Frustrated Lewis Pairs beyond the Main Group: Synthesis, Reactivity, and Small Molecule Activation with Cationic Zirconocene–Phosphinoaryloxide Complexes. J Am Chem Soc 2011; 133:18463-78. [DOI: 10.1021/ja207936p] [Citation(s) in RCA: 207] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andy M. Chapman
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Mairi F. Haddow
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Duncan F. Wass
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
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22
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Marchetti F, Pampaloni G. The reactivity of NbX5 (X=F, Cl) with lactons, lactams, and the synthesis of the first nucleobase-containing niobium complex. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.06.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Zarkesh RA, Heyduk AF. Reactivity of Organometallic Tantalum Complexes Containing a Bis(phenoxy)amide (ONO)3– Ligand with Aryl Azides and 1,2-Diphenylhydrazine. Organometallics 2011. [DOI: 10.1021/om2004332] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ryan A. Zarkesh
- Department of Chemistry, University of California, 1102 Natural Sciences 2, Irvine, California 92677, United States
| | - Alan F. Heyduk
- Department of Chemistry, University of California, 1102 Natural Sciences 2, Irvine, California 92677, United States
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24
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Pun D, Knobloch DJ, Lobkovsky E, Chirik PJ. Cyclisation of α,ω-dienes promoted by bis(indenyl)zirconium sandwich and ansa-titanocene dinitrogen complexes. Dalton Trans 2011; 40:7737-47. [PMID: 21566836 DOI: 10.1039/c1dt10149h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metallation of a variety of α,ω-dienes has been explored with an η(9),η(5)-bis(indenyl)zirconium sandwich compound and an ansa-titanocene dinitrogen complex. The η(9),η(5)-bis(indenyl)zirconium sandwich compound, (η(9)-C(9)H(5)-1,3-Pr(2))(η(5)-C(9)H(5)-1,3-(i)Pr(2))Zr, served as an isolable source of Negishi's reagent and readily formed a kinetic mixture of cis and trans diastereomers of the corresponding zirconacyclopentanes upon diene metallation. For pure hydrocarbon substrates such as 1,6-heptadiene and 1,7-octadiene, an equimolar amount of cis and trans diastereomers were the kinetic products; isomerization to the thermodynamically favoured trans isomers was observed over time at ambient temperature or upon heating to 105 °C, respectively. By contrast, substitution of the methylene or ethylene spacer in the α, ω-diene with a fluorenyl group (e.g. 9,9-diallylfluorene) resulted in exclusive kinetic formation of the trans diastereomer. Amino-substituted dienes were also readily cyclised and one example was characterised by single-crystal X-ray diffraction. Similar studies were also conducted with the ansa-titanocene dinitrogen complex, [Me(2)Si(η(5)-C(5)Me(4))(η(5)-C(5)H(3)-3-(t)Bu)Ti](2)(μ(2),η(1),η(1)-N(2)), and both kinetic and thermodynamic selectivities evaluated. The use of a C(1) symmetric ansa-metallocene increases the number of isomeric possibilities. For diallyl tert-butyl amine, diene metallation was more selective than for the bis(indenyl)zirconium sandwich compound and isomerization was also more rapid. Preliminary functionalisation reactivity for both the zircona- and titanocycles was also explored.
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Affiliation(s)
- Doris Pun
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853, USA
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25
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Gómez-Gallego M, Sierra MA. Kinetic isotope effects in the study of organometallic reaction mechanisms. Chem Rev 2011; 111:4857-963. [PMID: 21545118 DOI: 10.1021/cr100436k] [Citation(s) in RCA: 518] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mar Gómez-Gallego
- Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain.
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26
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Liu D, Shen H, Wang Y, Cai Y, Xie Z. Synthesis, structural characterization, and reactivity of Group 4 metallacarboranes bearing the ligand [H2C(C5Me4)(C2B9H10)]3-. Chem Asian J 2011; 6:628-37. [PMID: 21254436 DOI: 10.1002/asia.201000638] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2010] [Indexed: 11/06/2022]
Abstract
A new organic-inorganic hybrid ligand H(2)C(C(5)Me(4)H)(C(2)B(10)H(11)) (2) has been prepared. A selective deboration reaction with piperidine in ethanol resulted in the isolation of [Me(3)NH][H(2)C(C(5)Me(4)H)(C(2)B(9)H(11))] (3). An amine-elimination reaction of 3 with [Zr(NMe(2))(4)] produced a neutral metal-amide complex [η(5):η(5)-H(2)C(C(5)Me(4))(C(2)B(9)H(10))]Zr(NMe(2))(NHMe(2)) (4). The double-ring-opening reaction of 4 with tetrahydrofuran (THF) afforded [η(5):η(5)-H(2)C(C(5)Me(4))(C(2)B(9)H(10))]Zr (OCH(2)CH(2)CH(2)CH(2))(2)N(CH(3))(2) (5). Treatment of the trianionic salt of 3 with [MCl(4)(thf)(2)] gave complexes [{η(5):η(5)-H(2)C(C(5)Me(4))(C(2)B(9)H(10))}M(μ-Cl)(2)][Li(thf)(2)] (M=Zr (6), Hf (7)). Reaction of 6 with LiCH(2)TMS generated the ionic species [{η(5):η(5)-H(2)C(C(5)Me(4))(C(2)B(9)H(10))}Zr(CH(2)TMS)(2)][Li(thf)(3)] (9). Interaction of complex 6 with KCH(2)(NMe(2))-o-C(6)H(4) led to the formation of the neutral metal alkyl complex [η(5):η(5)-H(2)C(C(5)Me(4))(C(2)B(9)H(10))]Zr[σ:σ-CH(2)(NMe(2))-o-C(6)H(4)] (10). All complexes have been fully characterized by various spectroscopic techniques and elemental analyses. Some were further confirmed by single-crystal X-ray analyses.
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Affiliation(s)
- Dongmei Liu
- Department of Chemistry and Center of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
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27
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Gamelas CA, Bandeira NAG, Pereira CCL, Calhorda MJ, Herdtweck E, Machuqueiro M, Romão CC, Veiros LF. Indenyl ring slippage in crown thioether complexes [IndMo(CO)2L]+ and C–S activation of trithiacyclononane: Experimental and theoretical studies. Dalton Trans 2011; 40:10513-25. [DOI: 10.1039/c1dt10607d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Marchetti F, Pampaloni G. Characterization and thermal activation of adducts of Group 4 tetrahalides with 1,2-dialkoxyalkanes. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.05.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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29
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Pinkas J, Lukešová L, Gyepes R, Císařová I, Kubišta J, Horáček M, Mach K. Reduction-Induced Exclusive Activation of the ansa-1,2-Bis(dimethylsilylene)ethane Chain in ansa-Permethyltitanocene Compounds. Organometallics 2010. [DOI: 10.1021/om1003623] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiří Pinkas
- J. Heyrovský Institute
of Physical Chemistry, Academy of Sciences of the Czech Republic,
v.v.i., Dolejškova 3, 182 23 Prague 8, Czech Republic
| | - Lenka Lukešová
- J. Heyrovský Institute
of Physical Chemistry, Academy of Sciences of the Czech Republic,
v.v.i., Dolejškova 3, 182 23 Prague 8, Czech Republic
| | - Róbert Gyepes
- Department of Inorganic Chemistry, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic
| | - Jiří Kubišta
- J. Heyrovský Institute
of Physical Chemistry, Academy of Sciences of the Czech Republic,
v.v.i., Dolejškova 3, 182 23 Prague 8, Czech Republic
| | - Michal Horáček
- J. Heyrovský Institute
of Physical Chemistry, Academy of Sciences of the Czech Republic,
v.v.i., Dolejškova 3, 182 23 Prague 8, Czech Republic
| | - Karel Mach
- J. Heyrovský Institute
of Physical Chemistry, Academy of Sciences of the Czech Republic,
v.v.i., Dolejškova 3, 182 23 Prague 8, Czech Republic
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30
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Fout AR, Bailey BC, Buck DM, Fan H, Huffman JC, Baik MH, Mindiola DJ. Synthetic and Mechanistic Studies of the Ring Opening and Denitrogenation of Pyridine and Picolines by Ti−C Multiple Bonds. Organometallics 2010. [DOI: 10.1021/om100404d] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alison R. Fout
- Department of Chemistry, Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - Brad C. Bailey
- Department of Chemistry, Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - Dominik M. Buck
- Department of Chemistry, Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - Hongjun Fan
- Department of Chemistry, Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - John C. Huffman
- Department of Chemistry, Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - Mu-Hyun Baik
- Department of Chemistry, Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - Daniel J. Mindiola
- Department of Chemistry, Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
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31
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Pun D, Lobkovsky E, Keresztes I, Chirik PJ. Cyclopentanone Insertion into η9-Indenyl Rings of Zirconium Sandwich Complexes. Organometallics 2010. [DOI: 10.1021/om100096g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Doris Pun
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853
| | - Emil Lobkovsky
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853
| | - Ivan Keresztes
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853
| | - Paul J. Chirik
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853
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32
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Chirik PJ. Group 4 Transition Metal Sandwich Complexes: Still Fresh after Almost 60 Years. Organometallics 2010. [DOI: 10.1021/om100016p] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Paul J. Chirik
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853
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33
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Korobkov I, Vidjayacoumar B, Gorelsky SI, Billone P, Gambarotta S. Attempting to Reduce the Irreducible: Preparation of a Rare Paramagnetic Thorium Species. Organometallics 2010. [DOI: 10.1021/om900996n] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Ilia Korobkov
- Centre for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada
| | - Balamurugan Vidjayacoumar
- Centre for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada
| | - Serge I. Gorelsky
- Centre for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada
| | - Paul Billone
- Centre for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada
| | - Sandro Gambarotta
- Centre for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada
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34
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Werkema EL, Yahia A, Maron L, Eisenstein O, Andersen RA. Splitting a C–O bond in dialkylethers with bis(1,2,4-tri-tert-butylcyclopentadienyl)cerium hydride does not occur by a σ-bond metathesis pathway: a combined experimental and DFT computational study. NEW J CHEM 2010. [DOI: 10.1039/c0nj00261e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Lara P, Paneque M, Poveda ML, Santos LL, Valpuesta JEV, Carmona E, Moncho S, Ujaque G, Lledós A, Alvarez E, Mereiter K. Experimental and computational studies on the iridium activation of aliphatic and aromatic C-H bonds of alkyl aryl ethers and related molecules. Chemistry 2009; 15:9034-45. [PMID: 19658130 DOI: 10.1002/chem.200900646] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Reaction of the Ir(III) complex [(Tp(Me2))Ir(C(6)H(5))(2)(N(2))] (1N(2)) with ortho-cresol (2-methylphenol) occurs with cleavage of the O-H and two C(sp(3))-H bonds of the phenol and formation of the electrophilic hydride alkylidene derivative [(Tp(Me2))Ir(H){=C(H)C(6)H(4)-o-O}] (2). The analogous reaction of 2-ethylphenol gives a related product 3. Both 2 and 3 have been shown to be identical to the minor, unidentified products of the already reported reactions of 1 with anisole and phenetole, respectively. Thus, in addition to the route that leads to the known heteroatom-stabilized hydride carbene [(Tp(Me2))Ir(H){=C(H)OC(6)H(4)-o-}] (B), anisole can react with 1 with cleavage of the O-CH(3) bond and formation of a new carbon-carbon bond. In contrast, only C-H bond-activation products with structures akin to B result from 1N(2) and 3,5-dimethylanisole (complex 8) or 4-fluoroanisole (9). Using anisole as a model, a computational study of the triple C-H bond activation (two aliphatic C-H bonds plus an ortho-metalation reaction) that is responsible for the formation of these heteroatom-stabilized hydride carbenes has been undertaken.
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Affiliation(s)
- Patricia Lara
- Instituto de Investigaciones Químicas and Departamento de Química Inorgánica, Consejo Superior de Investigaciones Científicas and Universidad de Sevilla, Av. Américo Vespucio 49, Isla de la Cartuja, 41092 Sevilla, Spain
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36
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Bini R, Chiappe C, Marchetti F, Pampaloni G, Zacchini S. Structures and Unusual Rearrangements of Coordination Adducts of MX5 (M = Nb, Ta; X = F, Cl) with Simple Diethers. A Crystallographic, Spectroscopic, and Computational Study. Inorg Chem 2009; 49:339-51. [DOI: 10.1021/ic9020806] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Riccardo Bini
- Dipartimento di Chimica, Università di Firenze, Via della Lastruccia 3, I-50019 Sesto Fiorentino, Italy
| | - Cinzia Chiappe
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy
| | - Fabio Marchetti
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy
| | - Guido Pampaloni
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy
| | - Stefano Zacchini
- Dipartimento di Chimica Fisica e Inorganica, Università di Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy
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37
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Choi J, Choliy Y, Zhang X, Emge TJ, Krogh-Jespersen K, Goldman AS. Cleavage of sp3 C−O Bonds via Oxidative Addition of C−H Bonds. J Am Chem Soc 2009; 131:15627-9. [DOI: 10.1021/ja906930u] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jongwook Choi
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903
| | - Yuriy Choliy
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903
| | - Xiawei Zhang
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903
| | - Thomas J. Emge
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903
| | - Karsten Krogh-Jespersen
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903
| | - Alan S. Goldman
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903
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38
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Lara P, Paneque M, Poveda M, Santos L, Valpuesta J, Salazar V, Carmona E, Moncho S, Ujaque G, Lledós A, Maya C, Mereiter K. Synthetic, Mechanistic, and Theoretical Studies on the Generation of Iridium Hydride Alkylidene and Iridium Hydride Alkene Isomers. Chemistry 2009; 15:9046-57. [DOI: 10.1002/chem.200900654] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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39
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Perrotin P, El-Zoghbi I, Oguadinma PO, Schaper F. Replacing Chloride by Alkoxide: Cp2Zr(H)OR, Searching for Alternatives to Schwartz's Reagent. Organometallics 2009. [DOI: 10.1021/om8008734] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Philippe Perrotin
- Département de Chimie, Université de Montréal, Montréal, Québec, H3C 3J7, Canada
| | - Ibrahim El-Zoghbi
- Département de Chimie, Université de Montréal, Montréal, Québec, H3C 3J7, Canada
| | - Paul O. Oguadinma
- Département de Chimie, Université de Montréal, Montréal, Québec, H3C 3J7, Canada
| | - Frank Schaper
- Département de Chimie, Université de Montréal, Montréal, Québec, H3C 3J7, Canada
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40
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Pun D, Leopold SM, Bradley CA, Lobkovsky E, Chirik PJ. Bis(indenyl)hafnium Chemistry: Ligand-Induced Haptotropic Rearrangement and Fundamental Reactivity Studies at a Reduced Hafnium Center. Organometallics 2009. [DOI: 10.1021/om900046e] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Doris Pun
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853
| | - Scott M. Leopold
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853
| | - Christopher A. Bradley
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853
| | - Emil Lobkovsky
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853
| | - Paul J. Chirik
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853
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41
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Fout AR, Scott J, Miller DL, Bailey BC, Pink M, Mindiola DJ. Dehydrofluorination of Hydrofluorocarbons by Titanium Alkylidynes via Sequential C−H/C−F Bond Activation Reactions. A Synthetic, Structural, and Mechanistic Study of 1,2-CH Bond Addition and β-Fluoride Elimination. Organometallics 2008. [DOI: 10.1021/om800910q] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alison R. Fout
- Department of Chemistry and the Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - Jennifer Scott
- Department of Chemistry and the Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - Deanna L. Miller
- Department of Chemistry and the Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - Brad C. Bailey
- Department of Chemistry and the Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - Maren Pink
- Department of Chemistry and the Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - Daniel J. Mindiola
- Department of Chemistry and the Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
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42
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Paneque M, Poveda ML, Santos LL, Carmona E, Mereiter K. Generation of Metallacyclic Structures from the Reactions of Vinyl Ethers with a TpMe2IrIII Compound. Organometallics 2008. [DOI: 10.1021/om800844x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Margarita Paneque
- Instituto de Investigaciones Químicas, Departamento de Química Inorgánica, Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla, Avenida Américo Vespucio 49, Isla de la Cartuja, 41092 Sevilla, Spain, and Department of Chemistry, Vienna University of Technology, Getreidemarkt 9/164SC, A-1060 Vienna, Austria
| | - Manuel L. Poveda
- Instituto de Investigaciones Químicas, Departamento de Química Inorgánica, Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla, Avenida Américo Vespucio 49, Isla de la Cartuja, 41092 Sevilla, Spain, and Department of Chemistry, Vienna University of Technology, Getreidemarkt 9/164SC, A-1060 Vienna, Austria
| | - Laura L. Santos
- Instituto de Investigaciones Químicas, Departamento de Química Inorgánica, Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla, Avenida Américo Vespucio 49, Isla de la Cartuja, 41092 Sevilla, Spain, and Department of Chemistry, Vienna University of Technology, Getreidemarkt 9/164SC, A-1060 Vienna, Austria
| | - Ernesto Carmona
- Instituto de Investigaciones Químicas, Departamento de Química Inorgánica, Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla, Avenida Américo Vespucio 49, Isla de la Cartuja, 41092 Sevilla, Spain, and Department of Chemistry, Vienna University of Technology, Getreidemarkt 9/164SC, A-1060 Vienna, Austria
| | - Kurt Mereiter
- Instituto de Investigaciones Químicas, Departamento de Química Inorgánica, Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla, Avenida Américo Vespucio 49, Isla de la Cartuja, 41092 Sevilla, Spain, and Department of Chemistry, Vienna University of Technology, Getreidemarkt 9/164SC, A-1060 Vienna, Austria
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43
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Trovitch RJ, Lobkovsky E, Bouwkamp MW, Chirik PJ. Carbon−Oxygen Bond Cleavage by Bis(imino)pyridine Iron Compounds: Catalyst Deactivation Pathways and Observation of Acyl C−O Bond Cleavage in Esters. Organometallics 2008. [DOI: 10.1021/om8005596] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ryan J. Trovitch
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853
| | - Emil Lobkovsky
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853
| | - Marco W. Bouwkamp
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853
| | - Paul J. Chirik
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853
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44
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Marchetti F, Pampaloni G, Zacchini S. Unusual room temperature activation of 1,2-dialkoxyalkanes by niobium and tantalum pentachlorides. Dalton Trans 2008:7026-35. [PMID: 19050789 DOI: 10.1039/b810210d] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The outcome of the reactions of MCl(5) (M = Nb, 1a; M = Ta, 1b) with 1,2-dialkoxyalkanes [i.e. MeO(CH(2))(2)OMe (dme), EtO(CH(2))(2)OEt, MeOCH(2)CH(Me)OMe, MeO(CH(2))(2)OCH(2)Cl, MeO(CH(2))(2)O(CH(2))(2)OMe (diglyme)] depends strictly on the stoichiometry. In the 1 : 1 molar ratio reactions, single C-O bond cleavage occurs, resulting in formation of alkyl chloride and of the complexes [upper bond 1 start]MCl(4)[O(R)CH(R')CH(2)O][upper bond 1 end] [M = Nb, R = Me, R' = H, 3a; M = Ta, R = Me, R' = H, 3b; M = Nb, R = Et, R' = H, 5; M = Nb, R = R' = Me, 6; M = Nb, R = CH(2)Cl, R' = H, 7; M = Nb, R = (CH(2))(2)O(Me)NbCl(5), R' = H, 8], which have been characterized spectroscopically. Moreover, minor amounts of the oxo-bridged adducts MOCl(3)(dme)MCl(5) (M = Nb, 4a; M = Ta, 4b) have been isolated in the reactions involving dme. On the other hand, compounds react with two (or more) equivalents of dme mainly via a multiple C-O bond cleavage process, affording MOCl(3)(dme) (M = Nb, 2a; M = Ta, 2b), 1,4-dioxane and methyl chloride. The oxychloride compounds MOCl(3) (M = Nb, 11a; M = Ta, 11b) have been efficiently obtained by addition of TiCl(4) to 2. Compound 2a is reduced in high yield to the Nb(III) species NbCl(3)(dme), 12, upon treatment with SnBu(3)H. The oxychloride NbOCl(3)(diglyme), 9, 1,4-dioxane, CH(3)Cl and the hexachloroniobate salt [MeOCH(2)CH(2)OCH(2)CH(2)O(H)Me][NbCl(6)], 10, have been identified as products of the reaction of 1a with two equivalents of diglyme. The 1 : 2 molar ratio reaction of 1a with MeOCH(2)CH(Me)OMe gives 2,5-dimethyl-1,4-dioxane. Compound 1a reacts with two equivalents of EtO(CH(2))(2)OEt or MeO(CH(2))(2)OCH(2)Cl yielding Cl(CH(2))(2)OCH(2)CH(3) or O(CH(2)Cl)(2) and diglyme, respectively, but not dioxane, suggesting that fragmentation pathways different from that found for dme are operating. The X-ray molecular structures of 4a, 4b and 10 have been determined.
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Affiliation(s)
- Fabio Marchetti
- Università di Pisa, Dipartimento di Chimica e Chimica Industriale, Pisa, Italy
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45
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Liu D, Wang Y, Chan HS, Tang Y, Xie Z. Synthesis, Structure, and Reactivity of Group 4 Metallacarboranes Bearing the Ligand [Me2C(C9H6)(C2B9H10)]3−. Organometallics 2008. [DOI: 10.1021/om800452f] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Dongmei Liu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, Peopleʼs Republic of China, and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, Peopleʼs Republic of China
| | - Yaorong Wang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, Peopleʼs Republic of China, and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, Peopleʼs Republic of China
| | - Hoi-Shan Chan
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, Peopleʼs Republic of China, and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, Peopleʼs Republic of China
| | - Yong Tang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, Peopleʼs Republic of China, and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, Peopleʼs Republic of China
| | - Zuowei Xie
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, Peopleʼs Republic of China, and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, Peopleʼs Republic of China
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46
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Chen D, Xu S, Song H, Wang B. Reactions of Pyridyl Side Chain Functionalized Indenes with Ru3(CO)12. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200701186] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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47
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Shen H, Chan HS, Xie Z. Synthesis, Structural Characterization, and Reactivity of Group 4 Metal Complexes Derived from 1-Indenyl-1,2-carborane. Organometallics 2008. [DOI: 10.1021/om701108v] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Hao Shen
- Department of Chemistry and Center of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, Peopleʼs Republic of China
| | - Hoi-Shan Chan
- Department of Chemistry and Center of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, Peopleʼs Republic of China
| | - Zuowei Xie
- Department of Chemistry and Center of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, Peopleʼs Republic of China
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48
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Marchetti F, Pampaloni G, Zacchini S. From 1,2-dialkoxyalkanes to 1,4-dioxanes. A transformation mediated by NbCl5via multiple C–O bond cleavage at room temperature. Chem Commun (Camb) 2008:3651-3. [DOI: 10.1039/b804432e] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Jahel A, Vologdin NV, Pirio N, Cattey H, Richard P, Meunier P, Hierso JC. Selective formation of a unique diphosphonium-diphosphine from a tetraphosphine double protonation induced by zirconium salts. Dalton Trans 2008:4206-8. [DOI: 10.1039/b809244n] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Oulié P, Freund C, Saffon N, Martin-Vaca B, Maron L, Bourissou D. Enforced η1-Fluorenyl and Indenyl Coordination to Zirconium: Geometrically Constrained and Sterically Expanded Complexes Derived from the Bifunctional (FluPPh2NAr)− and (IndPPh2NAr)− Ligands. Organometallics 2007. [DOI: 10.1021/om700974g] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pascal Oulié
- Laboratoire Hétérochimie Fondamentale et Appliquée du CNRS (UMR 5069), Université Paul Sabatier, 118, route de Narbonne, F-31062 Toulouse Cedex 09, France, Structure Fédérative Toulousaine en Chimie Moléculaire (FR 2599) Université Paul Sabatier, 118, route de Narbonne, F-31062 Toulouse Cedex 09, France, and Laboratoire de Physique et Chimie des Nanoobjets (UMR 5215), INSA, Université Paul Sabatier, 135, avenue de Rangueil, F-31077 Toulouse Cedex, France
| | - Christelle Freund
- Laboratoire Hétérochimie Fondamentale et Appliquée du CNRS (UMR 5069), Université Paul Sabatier, 118, route de Narbonne, F-31062 Toulouse Cedex 09, France, Structure Fédérative Toulousaine en Chimie Moléculaire (FR 2599) Université Paul Sabatier, 118, route de Narbonne, F-31062 Toulouse Cedex 09, France, and Laboratoire de Physique et Chimie des Nanoobjets (UMR 5215), INSA, Université Paul Sabatier, 135, avenue de Rangueil, F-31077 Toulouse Cedex, France
| | - Nathalie Saffon
- Laboratoire Hétérochimie Fondamentale et Appliquée du CNRS (UMR 5069), Université Paul Sabatier, 118, route de Narbonne, F-31062 Toulouse Cedex 09, France, Structure Fédérative Toulousaine en Chimie Moléculaire (FR 2599) Université Paul Sabatier, 118, route de Narbonne, F-31062 Toulouse Cedex 09, France, and Laboratoire de Physique et Chimie des Nanoobjets (UMR 5215), INSA, Université Paul Sabatier, 135, avenue de Rangueil, F-31077 Toulouse Cedex, France
| | - Blanca Martin-Vaca
- Laboratoire Hétérochimie Fondamentale et Appliquée du CNRS (UMR 5069), Université Paul Sabatier, 118, route de Narbonne, F-31062 Toulouse Cedex 09, France, Structure Fédérative Toulousaine en Chimie Moléculaire (FR 2599) Université Paul Sabatier, 118, route de Narbonne, F-31062 Toulouse Cedex 09, France, and Laboratoire de Physique et Chimie des Nanoobjets (UMR 5215), INSA, Université Paul Sabatier, 135, avenue de Rangueil, F-31077 Toulouse Cedex, France
| | - Laurent Maron
- Laboratoire Hétérochimie Fondamentale et Appliquée du CNRS (UMR 5069), Université Paul Sabatier, 118, route de Narbonne, F-31062 Toulouse Cedex 09, France, Structure Fédérative Toulousaine en Chimie Moléculaire (FR 2599) Université Paul Sabatier, 118, route de Narbonne, F-31062 Toulouse Cedex 09, France, and Laboratoire de Physique et Chimie des Nanoobjets (UMR 5215), INSA, Université Paul Sabatier, 135, avenue de Rangueil, F-31077 Toulouse Cedex, France
| | - Didier Bourissou
- Laboratoire Hétérochimie Fondamentale et Appliquée du CNRS (UMR 5069), Université Paul Sabatier, 118, route de Narbonne, F-31062 Toulouse Cedex 09, France, Structure Fédérative Toulousaine en Chimie Moléculaire (FR 2599) Université Paul Sabatier, 118, route de Narbonne, F-31062 Toulouse Cedex 09, France, and Laboratoire de Physique et Chimie des Nanoobjets (UMR 5215), INSA, Université Paul Sabatier, 135, avenue de Rangueil, F-31077 Toulouse Cedex, France
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