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Huang F, Zheng X, Lin X, Ding L, Zhuo Q, Wen TB, Zhang H, Xia H. Extension of the Simmons-Smith reaction to metal-carbynes: efficient synthesis of metallacyclopropenes with σ-aromaticity. Chem Sci 2020; 11:10159-10166. [PMID: 34094279 PMCID: PMC8162146 DOI: 10.1039/d0sc03215h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 08/31/2020] [Indexed: 12/25/2022] Open
Abstract
The Simmons-Smith reaction offers a direct route for conversion of an alkene into a cyclopropane with a zinc carbenoid as the active intermediate. Zinc carbenoids, however, have never delivered a methylene unit to substrates with metal-carbon multiple bonds. Herein, we describe this type of reaction and the construction of three-membered rings has now been applied in organometallic systems by combining classical zinc carbenoid reagents with a range of structurally and electronically diverse metal carbynes. A variety of metallacyclopropene derivatives prepared in this way represent rare examples with σ-aromaticity in an unsaturated three-membered ring. The structures of such products are supported by experimental observations and theoretical calculations.
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Affiliation(s)
- Fanping Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Xuejuan Zheng
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Xinlei Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Linting Ding
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Qingde Zhuo
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Ting Bin Wen
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Hong Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Haiping Xia
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology Shenzhen 518055 China
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2
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Fischer R, Schmidt H, Younis FM, Görls H, Suxdorf R, Westerhausen M. Syntheses and Molecular Structures of [(thf)
4
Li] [{(thf)Li}M(C
4
H
8
)
3
] (M = Zr, Hf) and Their Solution Behavior. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.202000013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Reinald Fischer
- Chair of Inorganic Chemistry I Friedrich‐Schiller‐University Jena Humboldtstr. 8 07743 Jena Germany
| | - Heiner Schmidt
- Chair of Inorganic Chemistry I Friedrich‐Schiller‐University Jena Humboldtstr. 8 07743 Jena Germany
| | - Fadi M. Younis
- Chair of Inorganic Chemistry I Friedrich‐Schiller‐University Jena Humboldtstr. 8 07743 Jena Germany
| | - Helmar Görls
- Chair of Inorganic Chemistry I Friedrich‐Schiller‐University Jena Humboldtstr. 8 07743 Jena Germany
| | - Regina Suxdorf
- Chair of Inorganic Chemistry I Friedrich‐Schiller‐University Jena Humboldtstr. 8 07743 Jena Germany
| | - Matthias Westerhausen
- Chair of Inorganic Chemistry I Friedrich‐Schiller‐University Jena Humboldtstr. 8 07743 Jena Germany
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3
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Patrick EA, Piers WE. Twenty-five years of bis-pentafluorophenyl borane: a versatile reagent for catalyst and materials synthesis. Chem Commun (Camb) 2020; 56:841-853. [DOI: 10.1039/c9cc08338c] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Highlights of the extensive chemistry and applications of bis-pentafluorophenyl borane (“Piers’ borane”) from the 25 years since its first appearance are featured.
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4
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2,2′-Bis(methylene)biphenylidene-bridged bis(3-indenyl) dichloride complexes of Ti, Zr and Hf as catalyst precursors for ethylene polymerization. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.01.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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5
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Abdelbagi ME, Milius W, Mondal S, van Smaalen S, Alt HG. 1,2-Bis(dimethylsilyl)phenylidene bridged zirconocene and hafnocene dichloride complexes as precatalysts for ethylene polymerization. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2017.11.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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Cui CX, Ren S, Qiu Z, Xie Z. Synthesis of carborane-fused carbo- and heterocycles via zirconacyclopentane intermediates. Dalton Trans 2018; 47:2453-2459. [DOI: 10.1039/c7dt04751g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carborane-fused zirconacyclopentane serves as an important synthon for the preparation of a variety of carborane-fused carbo- and heterocycles via insertion and transmetalation reactions.
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Affiliation(s)
- Chun-Xiao Cui
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Shikuo Ren
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry
- The Chinese University of Hong Kong
- Shatin, N. T
- China
| | - Zaozao Qiu
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Zuowei Xie
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
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7
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Szeto KC, Sahyoun W, Merle N, Castelbou JL, Popoff N, Lefebvre F, Raynaud J, Godard C, Claver C, Delevoye L, Gauvin RM, Taoufik M. Development of silica-supported frustrated Lewis pairs: highly active transition metal-free catalysts for the Z-selective reduction of alkynes. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01372k] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Supported Lewis acid/base systems based have been prepared and characterized.
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8
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Burlakov VV, Baumann W, Arndt P, Spannenberg A, Rosenthal U. Crystal structure of bis-(η(5)-cyclo-penta-dien-yl)(2,3-di-ethyl-butane-1,4-di-yl)hafnium(IV). ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS 2015; 71:m7. [PMID: 25705475 PMCID: PMC4331853 DOI: 10.1107/s2056989014026929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 12/08/2014] [Indexed: 11/10/2022]
Abstract
The title compound, [Hf(C5H5)2(C8H16)], proves a structural motif of hafnacyclopentane besides the coordination of two cyclopentadienyl ligands in an η5-fashion. The hafnacyclopentane ring has a twist conformation and is substituted by two ethyl groups in the β,β′-positions, which are trans orientated to each other. One cyclopentadienyl ring and one ethyl group are each disordered over two positions with site-occupancy ratios of 0.679 (15):0.321 (15) and 0.702 (18):0.298 (18), respectively.
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Affiliation(s)
- Vladimir V Burlakov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St 28, 119991 Moscow, Russia
| | - Wolfgang Baumann
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Perdita Arndt
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Anke Spannenberg
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Uwe Rosenthal
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
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9
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Tisse VF, Boisson C, McKenna TFL. Activation and Deactivation of the Polymerization of Ethylene over rac
-EtInd2
ZrCl2
and (n
BuCp)2
ZrCl2
on an Activating Silica Support. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Virginie F. Tisse
- Université de Lyon; Univ. Lyon 1; CPE Lyon; CNRS UMR 5265 Laboratoire de Chimie Catalyse Polymères et Procédés (C2P2); LCPP team - Bat 308F, 43 Bd du 11 novembre 1918 F-69616 Villeurbanne France
| | - Christophe Boisson
- Université de Lyon; Univ. Lyon 1; CPE Lyon; CNRS UMR 5265 Laboratoire de Chimie Catalyse Polymères et Procédés (C2P2); LCPP team - Bat 308F, 43 Bd du 11 novembre 1918 F-69616 Villeurbanne France
| | - Timothy F. L. McKenna
- Université de Lyon; Univ. Lyon 1; CPE Lyon; CNRS UMR 5265 Laboratoire de Chimie Catalyse Polymères et Procédés (C2P2); LCPP team - Bat 308F, 43 Bd du 11 novembre 1918 F-69616 Villeurbanne France
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10
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Popoff N, Macqueron B, Sayhoun W, Espinas J, Pelletier J, Boyron O, Boisson C, Merle N, Szeto KC, Gauvin RM, De Mallmann A, Taoufik M. Well-Defined Silica-Supported Zirconium-Benzyl Cationic Species: Improved Heterogenization of Single-Site Polymerization Catalysts. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201301317] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Lu Y, Lent C. Self-doping of molecular quantum-dot cellular automata: mixed valence zwitterions. Phys Chem Chem Phys 2011; 13:14928-36. [DOI: 10.1039/c1cp21332f] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Beweries T, Fischer C, Peitz S, Burlakov VV, Arndt P, Baumann W, Spannenberg A, Heller D, Rosenthal U. Combination of spectroscopic methods: in situ NMR and UV/Vis measurements to understand the formation of group 4 metallacyclopentanes from the corresponding metallacyclopropenes. J Am Chem Soc 2009; 131:4463-9. [PMID: 19275148 DOI: 10.1021/ja809368s] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
By reaction of the dichloride rac-(ebthi)HfCl(2) [ebthi = 1,2-ethylene-1,1'-bis(eta(5)-tetrahydroindenyl)] with lithium in the presence of bis(trimethylsilyl)acetylene, the hafnacyclopropene rac-(ebthi)Hf(eta(2)-Me(3)SiC(2)SiMe(3)) (1-Hf) was obtained. The reaction of the blue-green complex 1-Hf with an excess of ethylene at room temperature leads by insertion of the olefin to the yellow-green hafnacyclopentene 2-Hf which is only stable in solution and eliminates the alkyne at 100 degrees C under ethylene to form the corresponding yellow hafnacyclopentane 3-Hf, which was characterized by X-ray crystal structure analysis. The reaction of 1-Hf to give stepwise via 2-Hf the complex 3-Hf was investigated in detail and compared to the formation and stability of the corresponding zirconacyclopropene 1-Zr, zirconacyclopentene 2-Zr, and zirconacyclopentane 3-Zr. Moreover, the reaction of the titanocene alkyne complex 1-Ti with ethylene was studied. For investigating the reaction behavior of the alkyne complexes 1-M, NMR spectroscopy was used and the results were compared with UV/vis spectroscopy, suggesting the existence of a bis-pi-complex prior to the formation of the hafnacyclopentene 2-Hf.
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Affiliation(s)
- Torsten Beweries
- Leibniz-Institut fur Katalyse e. V. an der Universitat Rostock, Albert-Einstein-Strasse 29a, D-18059 Rostock, Germany
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13
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Ugolotti J, Kehr G, Fröhlich R, Grimme S, Erker G. Five-Membered Zirconacycloallenoids: Synthesis and Characterization of Members of a Unique Class of Internally Metal-Stabilized Bent Allenoid Compounds. J Am Chem Soc 2009; 131:1996-2007. [DOI: 10.1021/ja8084302] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Juri Ugolotti
- Organisch-Chemisches Institut der Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Gerald Kehr
- Organisch-Chemisches Institut der Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Roland Fröhlich
- Organisch-Chemisches Institut der Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Stefan Grimme
- Organisch-Chemisches Institut der Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Gerhard Erker
- Organisch-Chemisches Institut der Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
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14
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Herrmann C, Kehr G, Fröhlich R, Erker G. Chemical Behavior of a Pair of (COD)CpRh and −Ir Complexes with Pendant Peripheral −B(C6F5)2 Groups. Organometallics 2008. [DOI: 10.1021/om800195d] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christoph Herrmann
- Organisch-Chemisches Institut der Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Gerald Kehr
- Organisch-Chemisches Institut der Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Roland Fröhlich
- Organisch-Chemisches Institut der Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Gerhard Erker
- Organisch-Chemisches Institut der Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
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15
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Electrophilic reactivity of the zwitterionic titanocene monohalides Cp[η5-C5H4B(C6F5)3]TiX (X=Cl, Br): Reactions with water and methanol. J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2007.06.062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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Interaction of titanium(III) zwitterionic complex Cp[η5-C5H4B(C6F5)3]Ti with organic halides: Synthesis and X-ray crystal structure determination of zwitterionic titanocene monohalides Cp[η5-C5H4B(C6F5)3]TiX (X=Cl, Br) and their catalytic activity in the ring-opening polymerization of ε-caprolactone. J Organomet Chem 2006. [DOI: 10.1016/j.jorganchem.2005.09.027] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Metallacycloalkanes – Synthesis, Structure and Reactivity of Medium to Large Ring Compounds. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2006. [DOI: 10.1016/s0065-3055(05)54004-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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18
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Bis(enamino-Cp) Group 4 metal complex chemistry: developing a Mannich-type carbon–carbon coupling reaction at the bent metallocene famework. J Organomet Chem 2005. [DOI: 10.1016/j.jorganchem.2004.08.021] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Millot N, Santini CC, Lefebvre F, Basset JM. Surface organometallic chemistry: a route to well-defined boron heterogeneous co-catalyst for olefin polymerisation. CR CHIM 2004. [DOI: 10.1016/j.crci.2004.03.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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20
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Jemmis ED, Phukan AK, Jiao H, Rosenthal U. Structure and Neutral Homoaromaticity of Metallacyclopentene, -pentadiene, -pentyne, and -pentatriene: A Density Functional Study. Organometallics 2003. [DOI: 10.1021/om034161y] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eluvathingal D. Jemmis
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India, and Leibniz-Institut für Organische Katalyse an der Universität Rostock e. V., Buchbinderstrasse 5-6, 18055 Rostock, Germany
| | - Ashwini Kumar Phukan
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India, and Leibniz-Institut für Organische Katalyse an der Universität Rostock e. V., Buchbinderstrasse 5-6, 18055 Rostock, Germany
| | - Haijun Jiao
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India, and Leibniz-Institut für Organische Katalyse an der Universität Rostock e. V., Buchbinderstrasse 5-6, 18055 Rostock, Germany
| | - Uwe Rosenthal
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India, and Leibniz-Institut für Organische Katalyse an der Universität Rostock e. V., Buchbinderstrasse 5-6, 18055 Rostock, Germany
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21
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Burlakov V, Letov A, Arndt P, Baumann W, Spannenberg A, Fischer C, Strunkina L, Minacheva M, Vygodskii Y, Rosenthal U, Shur V. Zwitterionic titanoxanes {Cp[η5-C5H4B(C6F5)3]Ti}2O and {(η5-iPrC5H4)[η5-1,3-iPrC5H3B(C6F5)3]Ti}2O as catalysts for cationic ring-opening polymerization. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s1381-1169(03)00023-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Cook KS, Piers WE, Hayes PG, Parvez M. Reactions of a Borataalkene Ligand at Tantalocene Centers: Isonitrile Insertion into the B−C Bond of the [CH2B(C6F5)2] Ligand via the η1Bonding Mode. Organometallics 2002. [DOI: 10.1021/om020145+] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Cook KS, Piers WE, McDonald R. Synthesis and chemistry of zwitterionic tantala-3-boratacyclopentenes: olefin-like reactivity of a borataalkene ligand. J Am Chem Soc 2002; 124:5411-8. [PMID: 11996581 DOI: 10.1021/ja025547n] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The compounds, where Cp' = C(5)H(5), a series, and C(5)H(4)Me, b series, are generated via treatment of with HB(C(6)F(5))(2). When allowed to undergo irreversible methane loss in the presence of an excess of the sterically modest alkynes 2-butyne or phenylacetylene, the putative intermediates 1a and 1b are trapped as the tantala-3-boratacyclopentene compounds 2 and 3, respectively. In these complexes, the alkyne and borataalkene ligands have reductively coupled at the d(2) tantalum center. For the unsymmetrical alkyne, a kinetic product resulting from coupling in the opposite regiochemical sense is observed; the thermodynamic products 3-t incorporate the phenyl group in the alpha position of the tantalaboratacyclic ring. Two of these compounds (2b and 3b-t) were characterized crystallographically. For bulkier alkynes (diphenylacetylene, 1-phenyl-1-propyne, and 3-hexyne), intermediates with similar spectroscopic properties to the tantala-3-boratacyclopentenes were observed, but the ultimate products were the vinylalkylidene compounds 5-(R,R'). Compound 5-(Ph,Me) was characterized crystallographically, and it was found that the vinylalkylidene binds to the metal in an eta(1)-bonding mode, with the tantalum center receiving further ligation through a hydridoborate moiety. Mechanistic studies suggest that these products arise via retrocyclization of the tantala-3-boratacyclopentenes formed kinetically. These studies represent the first studies concerning the reactivity of a borataalkene ligand at a transition metal center and show that it can behave in an "olefin-like" manner, despite having a more flexible array of bonding modes available to it than an olefin.
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Affiliation(s)
- Kevin S Cook
- Department of Chemistry, University of Calgary, 2500 University Drive N. W., Calgary, Alberta, T2N 1N4, Canada
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24
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Millot N, Cox A, Santini CC, Molard Y, Basset JM. Surface organometallic chemistry of main group elements: selective synthesis of silica supported [triple bond Si-OB(C(6)F(5))(3)](-)[HNEt(2)Ph](+). Chemistry 2002; 8:1438-42. [PMID: 11921228 DOI: 10.1002/1521-3765(20020315)8:6<1438::aid-chem1438>3.0.co;2-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The reaction of the Lewis acid B(C(6)F(5))(3) with silanol groups of silica surfaces, dehydroxylated at different temperatures (300, 500, 700, and 800 degrees C), has been investigated in presence of the Brønsted base NEt(2)Ph. The structure of the resulting modified silica supports [triple bond Si-OB(C(6)F(5))(3)](-)[HNEt(2)Ph](+) (1) has been carefully identified by IR and multinuclear solid-state NMR spectroscopies, isotopic (2)H and (18)O labeling, elemental analysis, molecular modeling, and comparison with synthesized molecular models. Highly dehydroxylated silica surfaces were required to transform selectively each silanol group into unique [triple bond Si-OB(C(6)F(5))(3)](-)[HNEt(2)Ph](+) fragments. For lower dehydroxylation temperatures, two sorts of surface sites were coexisting on silica: the free silanol groups [triple bond SiOH] and the ionic species 1.
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Affiliation(s)
- Nicolas Millot
- Laboratoire de Chimie Organométallique de Surface, UMR 9986 CNRS-ESCPE Lyon, 43, bd du 11 Novembre 1918, 69626 Villeurbanne Cedex, France
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25
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Pool JA, Bradley CA, Chirik PJ. A Convenient Method for the Synthesis of Zirconocene Hydrido Chloride, Isobutyl Hydride, and Dihydride Complexes Using tert-Butyl Lithium. Organometallics 2002. [DOI: 10.1021/om011090z] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jaime A. Pool
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853
| | - Christopher A. Bradley
- 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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26
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Sun H, Burlakov VV, Spannenberg A, Baumann W, Arndt P, Rosenthal U. Synthesis and Structural Investigation of Stable Zirconacyclopentanes Which Bear Additional Functional Groups. Organometallics 2001. [DOI: 10.1021/om010680u] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hongsui Sun
- Institut für Organische Katalyseforschung an der Universität Rostock e.V., Buchbinderstrasse 5-6, 18055 Rostock, Germany
| | - Vladimir V. Burlakov
- Institut für Organische Katalyseforschung an der Universität Rostock e.V., Buchbinderstrasse 5-6, 18055 Rostock, Germany
| | - Anke Spannenberg
- Institut für Organische Katalyseforschung an der Universität Rostock e.V., Buchbinderstrasse 5-6, 18055 Rostock, Germany
| | - Wolfgang Baumann
- Institut für Organische Katalyseforschung an der Universität Rostock e.V., Buchbinderstrasse 5-6, 18055 Rostock, Germany
| | - Perdita Arndt
- Institut für Organische Katalyseforschung an der Universität Rostock e.V., Buchbinderstrasse 5-6, 18055 Rostock, Germany
| | - Uwe Rosenthal
- Institut für Organische Katalyseforschung an der Universität Rostock e.V., Buchbinderstrasse 5-6, 18055 Rostock, Germany
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Burlakov VV, Arndt P, Baumann W, Spannenberg A, Rosenthal U, Letov AV, Lyssenko KA, Korlyukov AA, Strunkina LI, Minacheva MK, Shur VB. Synthesis and X-ray Crystal Structure Determination of New Zwitterionic Complexes of Titanocene. Organometallics 2001. [DOI: 10.1021/om0103052] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- V. V. Burlakov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 117813 Moscow, Russia, and Institut für Organische Katalyseforschung an der Universität Rostock, Buchbinderstrasse 5-6, D-18055 Rostock, Germany
| | - P. Arndt
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 117813 Moscow, Russia, and Institut für Organische Katalyseforschung an der Universität Rostock, Buchbinderstrasse 5-6, D-18055 Rostock, Germany
| | - W. Baumann
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 117813 Moscow, Russia, and Institut für Organische Katalyseforschung an der Universität Rostock, Buchbinderstrasse 5-6, D-18055 Rostock, Germany
| | - A. Spannenberg
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 117813 Moscow, Russia, and Institut für Organische Katalyseforschung an der Universität Rostock, Buchbinderstrasse 5-6, D-18055 Rostock, Germany
| | - U. Rosenthal
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 117813 Moscow, Russia, and Institut für Organische Katalyseforschung an der Universität Rostock, Buchbinderstrasse 5-6, D-18055 Rostock, Germany
| | - A. V. Letov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 117813 Moscow, Russia, and Institut für Organische Katalyseforschung an der Universität Rostock, Buchbinderstrasse 5-6, D-18055 Rostock, Germany
| | - K. A. Lyssenko
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 117813 Moscow, Russia, and Institut für Organische Katalyseforschung an der Universität Rostock, Buchbinderstrasse 5-6, D-18055 Rostock, Germany
| | - A. A. Korlyukov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 117813 Moscow, Russia, and Institut für Organische Katalyseforschung an der Universität Rostock, Buchbinderstrasse 5-6, D-18055 Rostock, Germany
| | - L. I. Strunkina
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 117813 Moscow, Russia, and Institut für Organische Katalyseforschung an der Universität Rostock, Buchbinderstrasse 5-6, D-18055 Rostock, Germany
| | - M. Kh. Minacheva
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 117813 Moscow, Russia, and Institut für Organische Katalyseforschung an der Universität Rostock, Buchbinderstrasse 5-6, D-18055 Rostock, Germany
| | - V. B. Shur
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 117813 Moscow, Russia, and Institut für Organische Katalyseforschung an der Universität Rostock, Buchbinderstrasse 5-6, D-18055 Rostock, Germany
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28
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Cook KS, Piers WE, Rettig SJ, McDonald R. Synthesis and Reactivity of Tantalocene Zwitterions Stabilized by Ground-State α-Agostic Interactions via Reaction of B(C6F5)3with Cp‘2Ta(CH2)(CH3) (Cp‘ = C5H5, C5H4Me). Organometallics 2000. [DOI: 10.1021/om000176+] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Chase PA, Piers WE, Parvez M. Reactions of Bis(pentafluorophenyl)borane with Titanocene Dialkyls: Synthesis and Structure of Cp2Ti[η2-H2B(C6F5)2]. Organometallics 2000. [DOI: 10.1021/om0001319] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Preston A. Chase
- Department of Chemistry, University of Calgary, 2500 University Drive N.W., Calgary, Alberta, T2N 1N4 Canada
| | - Warren E. Piers
- Department of Chemistry, University of Calgary, 2500 University Drive N.W., Calgary, Alberta, T2N 1N4 Canada
| | - Masood Parvez
- Department of Chemistry, University of Calgary, 2500 University Drive N.W., Calgary, Alberta, T2N 1N4 Canada
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30
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Drago D, Pregosin PS, Razavi A. 13C NMR Studies on Zr(ansa-Fluorenyl) Complexes. Molecules with Flexible Bonding Modes. Organometallics 2000. [DOI: 10.1021/om990971r] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daniela Drago
- Laboratory of Inorganic Chemistry, ETH Zentrum, 8092 Zürich, Switzerland, and Fina Research, Centre de Recherche du Groupe Petrofina, Zone Industrielle C, B-7181 Feluy, Belgium
| | - Paul S. Pregosin
- Laboratory of Inorganic Chemistry, ETH Zentrum, 8092 Zürich, Switzerland, and Fina Research, Centre de Recherche du Groupe Petrofina, Zone Industrielle C, B-7181 Feluy, Belgium
| | - Abbas Razavi
- Laboratory of Inorganic Chemistry, ETH Zentrum, 8092 Zürich, Switzerland, and Fina Research, Centre de Recherche du Groupe Petrofina, Zone Industrielle C, B-7181 Feluy, Belgium
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