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Franke M, Ens T, Mix A, Neumann B, Stammler HG, Mitzel NW. Host-guest chemistry of tridentate Lewis acids based on tribenzotriquinacene. Dalton Trans 2024; 53:11970-11980. [PMID: 38961795 DOI: 10.1039/d4dt01558d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
Flexible poly-Lewis acids (PLA) based on the tribenzotriquinacene (TBTQ) scaffold have been synthesised. Hydrosilylation of 4b,8b,12b-triallyltribenzotriquinacene and subsequent exchange of the chlorine substituents with weaker coordinating triflate groups afforded a novel triple silyl-functionalised PLA. By regioselective hydroboration of triallyl-TBTQ with various organoboranes, PLAs with different Lewis acidities were obtained. The synthesised PLAs were combined with neutral bases in host-guest experiments. DOSY NMR spectroscopy was performed to elucidate the complexation process in solution. These experiments revealed a highly dynamic interaction between the boron-functionalised PLA and triazine. However, the addition of one equivalent of tris(dimethylphosphino(methyl))phenylsilane led to the formation of a 1 : 1 adduct, which was confirmed by diffusion experiments.
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Affiliation(s)
- Maurice Franke
- Universität Bielefeld, Fakultät für Chemie, Lehrstuhl für Anorganische Chemie und Strukturchemie (ACS), Centre for Molecular Materials (CM2), Universitätsstraße 25, D-33615 Bielefeld, Germany.
| | - Tobin Ens
- Universität Bielefeld, Fakultät für Chemie, Lehrstuhl für Anorganische Chemie und Strukturchemie (ACS), Centre for Molecular Materials (CM2), Universitätsstraße 25, D-33615 Bielefeld, Germany.
| | - Andreas Mix
- Universität Bielefeld, Fakultät für Chemie, Lehrstuhl für Anorganische Chemie und Strukturchemie (ACS), Centre for Molecular Materials (CM2), Universitätsstraße 25, D-33615 Bielefeld, Germany.
| | - Beate Neumann
- Universität Bielefeld, Fakultät für Chemie, Lehrstuhl für Anorganische Chemie und Strukturchemie (ACS), Centre for Molecular Materials (CM2), Universitätsstraße 25, D-33615 Bielefeld, Germany.
| | - Hans-Georg Stammler
- Universität Bielefeld, Fakultät für Chemie, Lehrstuhl für Anorganische Chemie und Strukturchemie (ACS), Centre for Molecular Materials (CM2), Universitätsstraße 25, D-33615 Bielefeld, Germany.
| | - Norbert W Mitzel
- Universität Bielefeld, Fakultät für Chemie, Lehrstuhl für Anorganische Chemie und Strukturchemie (ACS), Centre for Molecular Materials (CM2), Universitätsstraße 25, D-33615 Bielefeld, Germany.
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2
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Franke M, Klingsiek MJ, Buth J, Lamm JH, Neumann B, Stammler HG, Mitzel NW. Hexadentate poly-Lewis acids based on the bowl-shaped tribenzotriquinacene. Dalton Trans 2024; 53:7751-7762. [PMID: 38445707 DOI: 10.1039/d4dt00379a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Hexadentate poly-Lewis acids (PLA) based on the bowl-shaped tribenzotriquinacene (TBTQ) have been synthesised. The introduction of three n-propyl groups into the benzhydrylic positions of the TBTQ backbone has significantly increased the solubility of the subsequently derived compounds. Semi-flexible PLAs containing boron and aluminium were obtained by hydrometallation of the corresponding 2,3,6,7,10,11-hexaalkynyl-TBTQ. Other rigid hexadentate PLAs were synthesised by stannylation of the corresponding alkyne units with Me3SnNMe2 followed by tin-element exchange reactions. The Lewis acidity of these PLAs was investigated in host-guest experiments with pyridine. Further experiments with bidentate bases showed correlations between their flexibility, their Lewis basicity and the complexation behaviour towards the synthesised PLAs. Addition of bis((dimethylphosphino)methyl)dimethylsilane (BisPhos) to solutions of the rigid alkynyl PLAs led to the formation of 3 : 1 adducts. Single crystal X-ray diffraction was used to further elucidate the host-guest connectivtiy. In addition, a sixfold pnictogen-bonding donor was synthesised by tin-antimony exchange.
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Affiliation(s)
- Maurice Franke
- Universität Bielefeld, Fakultät für Chemie, Lehrstuhl für Anorganische Chemie und Strukturchemie (ACS), Centre for Molecular Materials (CM2), Universitätsstr. 25, D-33615 Bielefeld, Germany.
| | - Maximilian J Klingsiek
- Universität Bielefeld, Fakultät für Chemie, Lehrstuhl für Anorganische Chemie und Strukturchemie (ACS), Centre for Molecular Materials (CM2), Universitätsstr. 25, D-33615 Bielefeld, Germany.
| | - Julian Buth
- Universität Bielefeld, Fakultät für Chemie, Lehrstuhl für Anorganische Chemie und Strukturchemie (ACS), Centre for Molecular Materials (CM2), Universitätsstr. 25, D-33615 Bielefeld, Germany.
| | - Jan-Hendrik Lamm
- Universität Bielefeld, Fakultät für Chemie, Lehrstuhl für Anorganische Chemie und Strukturchemie (ACS), Centre for Molecular Materials (CM2), Universitätsstr. 25, D-33615 Bielefeld, Germany.
| | - Beate Neumann
- Universität Bielefeld, Fakultät für Chemie, Lehrstuhl für Anorganische Chemie und Strukturchemie (ACS), Centre for Molecular Materials (CM2), Universitätsstr. 25, D-33615 Bielefeld, Germany.
| | - Hans-Georg Stammler
- Universität Bielefeld, Fakultät für Chemie, Lehrstuhl für Anorganische Chemie und Strukturchemie (ACS), Centre for Molecular Materials (CM2), Universitätsstr. 25, D-33615 Bielefeld, Germany.
| | - Norbert W Mitzel
- Universität Bielefeld, Fakultät für Chemie, Lehrstuhl für Anorganische Chemie und Strukturchemie (ACS), Centre for Molecular Materials (CM2), Universitätsstr. 25, D-33615 Bielefeld, Germany.
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Koptseva TS, Sokolov VG, Baranov EV, Fedushkin IL. New Gallium Hydrides with Dianionic Acenaphthene-1,2-Diimine Ligands. RUSS J COORD CHEM+ 2020. [DOI: 10.1134/s1070328420060020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Sokolov VG, Koptseva TS, Moskalev MV, Bazyakina NL, Piskunov AV, Cherkasov AV, Fedushkin IL. Gallium Hydrides with a Radical-Anionic Ligand. Inorg Chem 2017; 56:13401-13410. [PMID: 29023115 DOI: 10.1021/acs.inorgchem.7b02138] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of Cl2GaH with a sodium salt of the dpp-Bian radical-anion (dpp-Bian•-)Na (dpp-Bian = 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene) affords paramagnetic gallane (dpp-Bian•-)Ga(Cl)H (1). Oxidation of (dpp-Bian2-)Ga-Ga(dpp-Bian2-) (2) with N2O results in the dimeric oxide (dpp-Bian•-)Ga(μ2-O)2Ga(dpp-Bian•-) (3). A treatment of the oxide 3 with phenylsilane affords paramagnetic gallium hydrides (dpp-Bian•-)GaH2 (4) and (dpp-Bian•-)Ga{OSi(Ph)H2}H (5) depending on the reagent's stoichiometry. The reaction of digallane 2 with benzaldehyde produces pinacolate (dpp-Bian•-)Ga(O2C2H2Ph2) (6). In the presence of PhSiH3, the reaction between digallane 2 and benzaldehyde (2: PhSiH3: PhC(H)O = 1:4:4) affords compound 4. The newly prepared complexes 1, 3-6 consist of a spin-labeled diimine ligand-dpp-Bian radical-anion. The presence of the ligand-localized unpaired electron allows the use of the ESR spectroscopy for characterization of the gallium hydrides reported. The molecular structures of compounds 1, 3-6 have been determined by the single-crystal X-ray analysis.
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Affiliation(s)
- Vladimir G Sokolov
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences , Tropinina 49, Nizhny Novgorod 603137, Russian Federation
| | - Tatyana S Koptseva
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences , Tropinina 49, Nizhny Novgorod 603137, Russian Federation
| | - Mikhail V Moskalev
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences , Tropinina 49, Nizhny Novgorod 603137, Russian Federation
| | - Natalia L Bazyakina
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences , Tropinina 49, Nizhny Novgorod 603137, Russian Federation
| | - Alexander V Piskunov
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences , Tropinina 49, Nizhny Novgorod 603137, Russian Federation
| | - Anton V Cherkasov
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences , Tropinina 49, Nizhny Novgorod 603137, Russian Federation
| | - Igor L Fedushkin
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences , Tropinina 49, Nizhny Novgorod 603137, Russian Federation
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Tomaschautzky J, Neumann B, Stammler HG, Mix A, Mitzel NW. Tridentate Lewis-acids based on triphenylsilane. Dalton Trans 2017; 46:1645-1659. [DOI: 10.1039/c6dt04293g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Triphenylsilanes are versatile propeller-shaped building blocks and have been used for the syntheses of several novel poly-Lewis-acids. The first solid-state structure of a bisma-silatriptycene as well as investigations in host–guest chemistry of a triple alane with a threefold amine are reported.
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Affiliation(s)
- Janek Tomaschautzky
- Inorganic and Structural Chemistry
- Centre for Molecular Materials CM2
- Fakultät für Chemie
- Universität Bielefeld
- 33615 Bielefeld
| | - Beate Neumann
- Inorganic and Structural Chemistry
- Centre for Molecular Materials CM2
- Fakultät für Chemie
- Universität Bielefeld
- 33615 Bielefeld
| | - Hans-Georg Stammler
- Inorganic and Structural Chemistry
- Centre for Molecular Materials CM2
- Fakultät für Chemie
- Universität Bielefeld
- 33615 Bielefeld
| | - Andreas Mix
- Inorganic and Structural Chemistry
- Centre for Molecular Materials CM2
- Fakultät für Chemie
- Universität Bielefeld
- 33615 Bielefeld
| | - Norbert W. Mitzel
- Inorganic and Structural Chemistry
- Centre for Molecular Materials CM2
- Fakultät für Chemie
- Universität Bielefeld
- 33615 Bielefeld
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Weisheim E, Bücker L, Neumann B, Stammler HG, Mitzel NW. Tridentate Lewis acids with phenyl substituted 1,3,5-trisilacyclohexane backbones. Dalton Trans 2016; 45:198-207. [DOI: 10.1039/c5dt04208a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new 1,3,5-trisilacyclohexane scaffold with axially orientated ethynyl groups provides opportunities to create new tridentate Lewis acids. Some examples of these Lewis acids have been synthesized.
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Affiliation(s)
- Eugen Weisheim
- Bielefeld University
- Faculty of Chemistry
- Chair of Inorganic and Structural Chemistry
- Centre for Molecular Materials CM2
- 33615 Bielefeld
| | - Lisa Bücker
- Bielefeld University
- Faculty of Chemistry
- Chair of Inorganic and Structural Chemistry
- Centre for Molecular Materials CM2
- 33615 Bielefeld
| | - Beate Neumann
- Bielefeld University
- Faculty of Chemistry
- Chair of Inorganic and Structural Chemistry
- Centre for Molecular Materials CM2
- 33615 Bielefeld
| | - Hans-Georg Stammler
- Bielefeld University
- Faculty of Chemistry
- Chair of Inorganic and Structural Chemistry
- Centre for Molecular Materials CM2
- 33615 Bielefeld
| | - Norbert W. Mitzel
- Bielefeld University
- Faculty of Chemistry
- Chair of Inorganic and Structural Chemistry
- Centre for Molecular Materials CM2
- 33615 Bielefeld
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7
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Uhl W, Hentschel A, Kovert D, Kösters J, Layh M. Heterocyclic Digallanates, Encapsulation of Lithium Cations in Organometallic Cages and C–H Bond Activation. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500207] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Werner Uhl
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 30, 48149 Münster, Germany, www.uni‐muenster.de/chemie.ac/uhl/index.html
| | - Anne Hentschel
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 30, 48149 Münster, Germany, www.uni‐muenster.de/chemie.ac/uhl/index.html
| | - Dirk Kovert
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 30, 48149 Münster, Germany, www.uni‐muenster.de/chemie.ac/uhl/index.html
| | - Jutta Kösters
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 30, 48149 Münster, Germany, www.uni‐muenster.de/chemie.ac/uhl/index.html
| | - Marcus Layh
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 30, 48149 Münster, Germany, www.uni‐muenster.de/chemie.ac/uhl/index.html
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8
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Lamm JH, Horstmann J, Nissen JH, Weddeling JH, Neumann B, Stammler HG, Mitzel NW. Poly-Boron, -Silicon, and -Gallium Lewis Acids by Hydrometallation of 1,5- and 1,8-Dialkynylanthracenes. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402376] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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9
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Uhl W, Bohnemann J, Layh M, Würthwein EU. Hydroalumination of a Chlorotrialkynylsilane: Spontaneous Stepwise 1,3-Dyotropic Rearrangement via an Intermediate Silyl Cation. Chemistry 2014; 20:8771-81. [DOI: 10.1002/chem.201402713] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Indexed: 11/10/2022]
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10
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Uhl W, Pelties S, Rohling M, Tannert J. Alkenyl-Alkynylgermanes Functionalised by Lewis Acids: Intramolecular Aluminium- and Gallium-Alkyne Interactions and Potential Ge-C Bond Activation. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402132] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Uhl W, Rösener C, Layh M, Hepp A. Treatment of a Methylene-Bridged Dialuminium Compound with Lithium Alkanides and Alkynides - Single vs. Twofold Terminal Coordination. Z Anorg Allg Chem 2012. [DOI: 10.1002/zaac.201200085] [Citation(s) in RCA: 7] [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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12
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Holtrichter-Rößmann T, Rösener C, Hellmann J, Uhl W, Würthwein EU, Fröhlich R, Wibbeling B. Generation of Weakly Bound Al–N Lewis Pairs by Hydroalumination of Ynamines and the Activation of Small Molecules: Phenylethyne and Dicyclohexylcarbodiimide. Organometallics 2012. [DOI: 10.1021/om3001179] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Christian Rösener
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Johannes Hellmann
- Organisch-Chemisches Institut der Universität Münster, Corrensstraße
40, D-48149 Münster, Germany
| | - Werner Uhl
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Ernst-Ulrich Würthwein
- Organisch-Chemisches Institut der Universität Münster, Corrensstraße
40, D-48149 Münster, Germany
| | - Roland Fröhlich
- Organisch-Chemisches Institut der Universität Münster, Corrensstraße
40, D-48149 Münster, Germany
| | - Birgit Wibbeling
- Organisch-Chemisches Institut der Universität Münster, Corrensstraße
40, D-48149 Münster, Germany
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13
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Uhl W, Heller D, Kösters J, Würthwein EU, Ghavtadze N. Hydroalumination of Bis(alkynyl)silanes: Generation of Chelating Lewis Acids, Their Application in the Coordination of Chloride Ions and a 1,1-Carbalumination Reaction. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100890] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Uhl W, Kovert D, Layh M, Hepp A. Vinylgallium and alkyllithium compounds: transmetalation and generation of oligolithium cages. Chemistry 2011; 17:13553-61. [PMID: 22021130 DOI: 10.1002/chem.201102057] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Indexed: 11/07/2022]
Abstract
Vinylgallium compounds [C(6)H(6-n){(H)C=C(SiR(2) R')-GaR''(2)}(n ] (3, R=Ph, Me; R'=Ph, Me; R''=tBu, Et; n=1, 2) are easily accessible by hydrogallation of the corresponding alkynylbenzene derivatives with H-GaCl(2) and subsequent reaction with alkyllithium derivatives. Treatment of 3 with an excess amount of tert-butyl- or ethyllithium yielded by transmetalation and ortho-deprotonation of the aromatic rings the unprecedented solvent-free oligolithium cluster compounds [{(C(6)H(4)Li)HC=C(SiPh(3))Li}(2)(tBuLi)(2)] (4), [{(C(6)H(4)Li)HC=C(SiPh(2)Me)Li}(4)] (5) and [{(C(6)H(3)Li){HC=C(SiMe(3))Li}(2)}(3)] (6) in moderate yields. Their solid-state structures revealed the presence of unique molecular lithium clusters with 6, 8, or 9 lithium atoms that may be derived from two edge-sharing Li(4) tetrahedra (4), three Li(4) tetrahedra in a chain joined by two common edges (5) or a tricapped trigonal prism of lithium atoms (6).
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Affiliation(s)
- Werner Uhl
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstrasse 30, 48149 Münster, Germany.
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Uhl W, Kovert D, Zemke S, Hepp A. Unexpected Formation of Ga4C2H4 Heteroadamantane Cages by the Reaction of Carbon-Bridged Bis(dichlorogallium) Compounds with tert-Butyllithium. Organometallics 2011. [DOI: 10.1021/om200573g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Werner Uhl
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
| | - Dirk Kovert
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
| | - Sarina Zemke
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
| | - Alexander Hepp
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
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Uhl W, Heller D, Rohling M, Kösters J. Hydroalumination of bis(alkynyl)germanes and -silanes: Generation of a chelating Lewis-acid and observation of a dismutation reaction. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.02.070] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Uhl W, Claesener M, Kovert D, Hepp A, Würthwein EU, Ghavtadze N. A Unique Chlorine–Methyl Exchange Reaction upon Treatment of Dichloroorganogallium Compounds, RGaCl2, with the Bulky Alkyllithium Derivative LiC(SiMe3)3. Organometallics 2011. [DOI: 10.1021/om200176y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Uhl W, Rohling M, Würthwein EU, Ghavtadze N, Bergander K. Facile Synthesis of an Unsaturated Spiro Germane by Hydroalumination and Intramolecular 1,1-Carbalumination. Organometallics 2010. [DOI: 10.1021/om100359k] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Werner Uhl
- Institut für Anorganische
und Analytische Chemie der Universität Münster, Corrensstrasse
30, D-48149 Münster, Germany
| | - Martina Rohling
- Institut für Anorganische
und Analytische Chemie der Universität Münster, Corrensstrasse
30, D-48149 Münster, Germany
| | - Ernst-Ulrich Würthwein
- Organisch-chemisches Institut der Universität Münster, Corrensstrasse 40, D-48149 Münster, Germany
| | - Nugzar Ghavtadze
- Organisch-chemisches Institut der Universität Münster, Corrensstrasse 40, D-48149 Münster, Germany
| | - Klaus Bergander
- Organisch-chemisches Institut der Universität Münster, Corrensstrasse 40, D-48149 Münster, Germany
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Uhl W, Heller D. Hydroaluminierung von Silicium-zentrierten Dialkinen - Synthese gemischt-substituierter Alkenyl-alkinylsilane. Z Anorg Allg Chem 2010. [DOI: 10.1002/zaac.200900323] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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20
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Uhl W, Hepp A, Westenberg H, Zemke S, Würthwein EU, Hellmann J. Hydroalumination and Hydrogallation of 1,2-Bis(trimethylsilylethynyl)benzene: Formation of Molecular Capsules and C−C Bond Activation. Organometallics 2010. [DOI: 10.1021/om901058a] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Werner Uhl
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
| | - Alexander Hepp
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
| | - Hauke Westenberg
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
| | - Sarina Zemke
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
| | - Ernst-Ulrich Würthwein
- Organisch-chemisches Institut der Universität Münster, Corrensstrasse 40, D-48149 Münster, Germany
| | - Johannes Hellmann
- Organisch-chemisches Institut der Universität Münster, Corrensstrasse 40, D-48149 Münster, Germany
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21
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Westenberg H, Slootweg JC, Hepp A, Kösters J, Roters S, Ehlers AW, Lammertsma K, Uhl W. C≡C Triple Bond Activation by Heterocyclic Aluminum Phosphinides. Organometallics 2010. [DOI: 10.1021/om901051p] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hauke Westenberg
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
| | - J. Chris Slootweg
- Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Alexander Hepp
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
| | - Jutta Kösters
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
| | - Steffi Roters
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
| | - Andreas W. Ehlers
- Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Koop Lammertsma
- Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Werner Uhl
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
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22
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Uhl W, Rohling M, Kösters J. Hydroalumination of dialkynylgermanes—synthesis of alkenyl–alkynylgermanes with intramolecular aluminium–carbon interactions. NEW J CHEM 2010. [DOI: 10.1039/c0nj00050g] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Uhl W, Reza Halvagar M, Claesener M. Reducing GaH and GaC Bonds in Close Proximity to Oxidizing Peroxo Groups: Conflicting Properties in Single Molecules. Chemistry 2009; 15:11298-306. [DOI: 10.1002/chem.200900746] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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24
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Elschenbroich C, Grimme S, Haddadpour S, Matar M, Nowotny M, Uhl W, Vogelpohl A. Dialkyl-[5]trovacenylethinylaluminium- und -gallium Verbindungen {[5]Trovacenyl = (η7-C7H7)V(η5-C5H4-)} - Zur Frage magnetischer Austauschwechselwirkung über Trenngruppen mit Elektronenmangel-Bindungssegmenten. Z Anorg Allg Chem 2009. [DOI: 10.1002/zaac.200900181] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Uhl W, Er E, Hepp A, Kösters J, Layh M, Rohling M, Vinogradov A, Würthwein EU, Ghavtadze N. Treatment of Terminal Alkynes R-C≡C-H with Dialkylaluminum Hydrides: Hydroalumination versus Deprotonation. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900264] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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26
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Uhl W, Claesener M, Hepp A, Jasper B, Vinogradov A, van Wüllen L, Köster TKJ. The influence of halogen substituents on the course of hydrogallation and hydroalumination reactions. Dalton Trans 2009:10550-62. [DOI: 10.1039/b913568e] [Citation(s) in RCA: 29] [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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27
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Uhl W, Claesener M, Haddadpour S, Jasper B, Tiesmeyer I, Zemke S. Hydrogallierungsreaktionen mit den Monoalkinen H5C6-C≡C-SiMe3und H5C6-C≡C-CMe3-cis/trans-Isomerie und Substituentenaustausch. Z Anorg Allg Chem 2008. [DOI: 10.1002/zaac.200800322] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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28
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Uhl W, Bock H, Claesener M, Layh M, Tiesmeyer I, Würthwein EU. cis/trans Isomerism of Hydroalumination and Hydrogallation Products-Reflections on Stability and Rearrangement Mechanism. Chemistry 2008; 14:11557-64. [DOI: 10.1002/chem.200801257] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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29
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Uhl W, Er E, Hepp A, Kösters J, Grunenberg J. Reactions of Terminal Alkynes with a Bulky Dialkylaluminum Hydride: Hydroalumination versus Deprotonation. Organometallics 2008. [DOI: 10.1021/om800190f] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Werner Uhl
- Institut für Anorganische and Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany, and Institut für Organische Chemie der Technischen Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Elif Er
- Institut für Anorganische and Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany, and Institut für Organische Chemie der Technischen Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Alexander Hepp
- Institut für Anorganische and Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany, and Institut für Organische Chemie der Technischen Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Jutta Kösters
- Institut für Anorganische and Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany, and Institut für Organische Chemie der Technischen Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Jörg Grunenberg
- Institut für Anorganische and Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany, and Institut für Organische Chemie der Technischen Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
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30
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Uhl W, Claesener M, Hepp A. A Carbon-Bridged Digallium Compound as a Chelating Lewis Acid: Complexation of Thiophenolate and Benzoate Anions by H5C6−CH2−C(SiMe3)[Ga(CH2tBu)2]2. Organometallics 2008. [DOI: 10.1021/om800068s] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Werner Uhl
- Institut für Anorganizche and Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
| | - Michael Claesener
- Institut für Anorganizche and Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
| | - Alexander Hepp
- Institut für Anorganizche and Analytische Chemie der Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
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