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Tao X, Daniliuc CG, Soloviova K, Strassert CA, Kehr G, Erker G. Arylallenes and the halogeno-B(C6F5)2 reagents: facile formation of 2-borylindenes. Chem Commun (Camb) 2019; 55:10166-10169. [DOI: 10.1039/c9cc04199k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Allenylarenes are converted to the respective 2-borylindenes by treatment with chloro- or bromobis(pentafluorophenyl)borane.
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Affiliation(s)
- Xin Tao
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - Constantin G. Daniliuc
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - Kateryna Soloviova
- Photophysical Measurements
- Institut für Anorganische und Analytische Chemie – CeNTech
- Westfälische Wilhelms-Universität Münster
- D-48149 Münster
- Germany
| | - Cristian A. Strassert
- Photophysical Measurements
- Institut für Anorganische und Analytische Chemie – CeNTech
- Westfälische Wilhelms-Universität Münster
- D-48149 Münster
- Germany
| | - Gerald Kehr
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - Gerhard Erker
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
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2
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Abdelbagi ME, Alt HG. Unbridged 1- and 2-substituted bis(silylindenyl) zirconium(IV) and hafnium(IV) dichloride complexes as catalyst precursors for ethylene polymerization. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.07.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kinoshita H, Hirai N, Miura K. Diisobutylaluminum hydride promoted cyclization of o-(trimethylsilylethynyl)styrenes to indenes. J Org Chem 2014; 79:8171-81. [PMID: 25093271 DOI: 10.1021/jo501383v] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The reaction of o-(trimethylsilylethynyl)styrenes with diisobutylaluminum hydride (DIBAL-H) provides 2-trimethylsilyl-1H-indenes efficiently. The cyclization mechanism involves regioselective hydroalumination of the alkynyl moiety, geometrical isomerization of the alkenylaluminums formed, and intramolecular carboalumination. With substrates bearing a 2-(trimethylsilyl)ethenyl group (R(1) = Me3Si, R(2) = R(3) = H), bis-silylated benzofulvenes are obtained upon treatment of the reaction mixture with an excess amount of benzaldehyde.
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Affiliation(s)
- Hidenori Kinoshita
- Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University , 255 Shimo-ohkubo, Sakura-ku, Saitama 338-8570, Japan
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4
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Crisp JA, Meier RM, Overby JS, Hanusa TP, Rheingold AL, Brennessel WW. Indenyl Complexes of Manganese(II). Conformational Flexibility of the Manganese(II)−(RnC9H7−n) Bond. Organometallics 2010. [DOI: 10.1021/om100162j] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jeffrey A. Crisp
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235
| | - Ryan M. Meier
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235
| | - Jason S. Overby
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235
| | - Timothy P. Hanusa
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235
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Horáček M, Pinkas J, Gyepes R, Kubišta J, Mach K. Reactivity of SiMe2H Substituents in Permethylated Titanocene Complexes: Dehydrocoupling and Ethene Hydrosilylation. Organometallics 2008. [DOI: 10.1021/om8000789] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michal Horáček
- J. Heyrovský Institute of Physical Chemistry of Academy of Sciences of the Czech Republic, v.v.i. Dolejškova 3, 182 23 Prague 8, Czech Republic, and Department of Inorganic Chemistry, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic
| | - Jiří Pinkas
- J. Heyrovský Institute of Physical Chemistry of Academy of Sciences of the Czech Republic, v.v.i. Dolejškova 3, 182 23 Prague 8, Czech Republic, and Department of Inorganic Chemistry, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic
| | - Róbert Gyepes
- J. Heyrovský Institute of Physical Chemistry of Academy of Sciences of the Czech Republic, v.v.i. Dolejškova 3, 182 23 Prague 8, Czech Republic, and Department of Inorganic Chemistry, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic
| | - Jiří Kubišta
- J. Heyrovský Institute of Physical Chemistry of Academy of Sciences of the Czech Republic, v.v.i. Dolejškova 3, 182 23 Prague 8, Czech Republic, and Department of Inorganic Chemistry, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic
| | - Karel Mach
- J. Heyrovský Institute of Physical Chemistry of Academy of Sciences of the Czech Republic, v.v.i. Dolejškova 3, 182 23 Prague 8, Czech Republic, and Department of Inorganic Chemistry, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic
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Möller AC, Blom R, Heyn RH, Swang O, Kopf J, Seraidaris T. A general one-pot synthesis for elusive 2-substituted indenes: does bis[2-(tert-butyl)indenyl]zirconium(IV) dichloride/MAO polymerise ethene? Dalton Trans 2006:2098-105. [PMID: 16625254 DOI: 10.1039/b516130d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Among the 2-substituted indenes, 2-trifluoroindene and 2-tert-butylindene are poorly or incompletely described in the open literature. We herein describe an efficient one-pot synthesis of these compounds as a variation of the Perkin reaction which allows us to refute an earlier claim that bis(2-tert-butylindenyl)zirconium(IV) dichloride (2a) will not polymerise ethene. In fact, 2a/MAO polymerises ethene to extremely high molecular weights. Extensive DFT calculations on the polymerisation mechanism revealed an unprecedented suppression of the otherwise predominant chain termination by beta-hydride transfer due to steric congestion of the active site.
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Affiliation(s)
- Andreas C Möller
- Department of Hydrcarbon Process Chemistry, SINTEF Materials and Chemistry, P.O. Boks 124 Blindern, N-0314 Oslo, Norway
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Möller AC, Blom R, Heyn RH, Swang O, Görbitz CH, Seraidaris T. Synthetic Explorations Towards Sterically Crowded 1,2,3-Substituted Bis(indenyl)zirconium(IV) Dichlorides. Eur J Inorg Chem 2005. [DOI: 10.1002/ejic.200400972] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Silver S, Leppänen AS, Sjöholm R, Penninkangas A, Leino R. Towards Benign Synthesis of Indenes from Indanones: Zinc-Mediated Allylation of Ketones in Aqueous Media as a Source of Substituted Indenyl Ligand Precursors. European J Org Chem 2005. [DOI: 10.1002/ejoc.200400789] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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