1
|
Oliva L, Oliva P, Galdi N, Pellecchia C, Sian L, Macchioni A, Zuccaccia C. Solution Structure and Reactivity with Metallocenes of AlMe2
F: Mimicking Cation-Anion Interactions in Metallocenium-Methylalumoxane Inner-Sphere Ion Pairs. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707194] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Leone Oliva
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”; Università di Salerno; Via Giovanni Paolo II 132-84084 Fisciano (SA) Italia
| | - Patrizia Oliva
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”; Università di Salerno; Via Giovanni Paolo II 132-84084 Fisciano (SA) Italia
| | - Nunzia Galdi
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”; Università di Salerno; Via Giovanni Paolo II 132-84084 Fisciano (SA) Italia
| | - Claudio Pellecchia
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”; Università di Salerno; Via Giovanni Paolo II 132-84084 Fisciano (SA) Italia
| | - Leonardo Sian
- Dipartimento di Chimica, Biologia e Biotecnologie; Università degli Studi di Perugia; Via Elce di Sotto 8-06123 Perugia Italia
| | - Alceo Macchioni
- Dipartimento di Chimica, Biologia e Biotecnologie; Università degli Studi di Perugia; Via Elce di Sotto 8-06123 Perugia Italia
| | - Cristiano Zuccaccia
- Dipartimento di Chimica, Biologia e Biotecnologie; Università degli Studi di Perugia; Via Elce di Sotto 8-06123 Perugia Italia
| |
Collapse
|
2
|
Oliva L, Oliva P, Galdi N, Pellecchia C, Sian L, Macchioni A, Zuccaccia C. Solution Structure and Reactivity with Metallocenes of AlMe2
F: Mimicking Cation-Anion Interactions in Metallocenium-Methylalumoxane Inner-Sphere Ion Pairs. Angew Chem Int Ed Engl 2017; 56:14227-14231. [DOI: 10.1002/anie.201707194] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Leone Oliva
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”; Università di Salerno; Via Giovanni Paolo II 132-84084 Fisciano (SA) Italia
| | - Patrizia Oliva
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”; Università di Salerno; Via Giovanni Paolo II 132-84084 Fisciano (SA) Italia
| | - Nunzia Galdi
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”; Università di Salerno; Via Giovanni Paolo II 132-84084 Fisciano (SA) Italia
| | - Claudio Pellecchia
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”; Università di Salerno; Via Giovanni Paolo II 132-84084 Fisciano (SA) Italia
| | - Leonardo Sian
- Dipartimento di Chimica, Biologia e Biotecnologie; Università degli Studi di Perugia; Via Elce di Sotto 8-06123 Perugia Italia
| | - Alceo Macchioni
- Dipartimento di Chimica, Biologia e Biotecnologie; Università degli Studi di Perugia; Via Elce di Sotto 8-06123 Perugia Italia
| | - Cristiano Zuccaccia
- Dipartimento di Chimica, Biologia e Biotecnologie; Università degli Studi di Perugia; Via Elce di Sotto 8-06123 Perugia Italia
| |
Collapse
|
3
|
Lanzinger D, Höhlein IM, Weiß SB, Rieger B. Catalytic C–F activation via cationic group IV metallocenes. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2014.12.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
4
|
Reiß F, Schulz A, Villinger A. Synthesis, Structure, and Reactivity of Diazene Adducts: Isolation ofiso-Diazene Stabilized as a Borane Adduct. Chemistry 2014; 20:11800-11. [DOI: 10.1002/chem.201402921] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Indexed: 11/11/2022]
|
5
|
Yow S, Gates SJ, White AJP, Crimmin MR. Zirconocene Dichloride Catalyzed Hydrodefluorination of C sp 2F bonds. Angew Chem Int Ed Engl 2012; 51:12559-63. [DOI: 10.1002/anie.201207036] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 09/24/2012] [Indexed: 11/12/2022]
|
6
|
Yow S, Gates SJ, White AJP, Crimmin MR. Zirconocene Dichloride Catalyzed Hydrodefluorination of C sp 2F bonds. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201207036] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
7
|
So LC, Liu CC, Chan MCW, Lo JCY, Sze KH, Zhu N. Scalar coupling across [C-H···F-C] interactions in (σ-aryl)-chelating post-metallocenes. Chemistry 2011; 18:565-73. [PMID: 22161818 DOI: 10.1002/chem.201102439] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Indexed: 11/07/2022]
Abstract
The nature and importance of C-H···F-C interactions is a topical yet controversial issue, and the development of spectroscopic methods to probe such contacts is therefore warranted. A series of Group 4 bis(benzyl) complexes supported by (σ-aryl)-2-phenolate-6-pyridyl [O,C,N-R(1)] ligands bearing a fluorinated R(1) group (CF(3) or F) in the vicinity of the metal has been prepared. The X-ray crystal structure of the CF(3)-substituted Hf derivative features intramolecular C-H···F-C and Hf···F-C contacts. All complexes have been characterized by multinuclear NMR spectroscopy. The (1)H and (13)C NMR spectra of [M(O,C,N-CF(3))(CH(2)Ph)(2)] derivatives display coupling (assigned to (1h)J(HF) and (2h)J(CF) for Ti; (3)J(HF) and (2)J(CF) (through M···F) for Hf and Zr) between the benzyl CH(2) and CF(3) moieties. [(1)H,(19)F]-HMBC NMR experiments have been performed for the M-[O,C,N-R(1)] complexes and their [O,N,C] counterparts, revealing significant scalar coupling across the C-H···F-C interactions for Ti-[O,C,N] and [O,N,C] species.
Collapse
Affiliation(s)
- Loi-Chi So
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, PR China
| | | | | | | | | | | |
Collapse
|
8
|
Kawachi A, Nagae S, Onoue Y, Harada O, Yamamoto Y. ortho-Magnesiation of Boron-Substituted Benzenes by Using (TMP)2Mg. Chemistry 2011; 17:8005-8. [DOI: 10.1002/chem.201101022] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2011] [Indexed: 11/10/2022]
|
9
|
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.
Collapse
Affiliation(s)
- Torsten Beweries
- Leibniz-Institut fur Katalyse e. V. an der Universitat Rostock, Albert-Einstein-Strasse 29a, D-18059 Rostock, Germany
| | | | | | | | | | | | | | | | | |
Collapse
|
10
|
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
| |
Collapse
|
11
|
Klahn M, Arndt P, Spannenberg A, Gansäuer A, Rosenthal U. Menthyl-Substituted Group 4 Metallocene Dihalides. Organometallics 2008. [DOI: 10.1021/om800605x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marcus Klahn
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock, Albert-Einstein-Strasse 29a, D-18059 Rostock, Germany, and Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Strasse 1, D-53121 Bonn, Germany
| | - Perdita Arndt
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock, Albert-Einstein-Strasse 29a, D-18059 Rostock, Germany, and Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Strasse 1, D-53121 Bonn, Germany
| | - Anke Spannenberg
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock, Albert-Einstein-Strasse 29a, D-18059 Rostock, Germany, and Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Strasse 1, D-53121 Bonn, Germany
| | - Andreas Gansäuer
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock, Albert-Einstein-Strasse 29a, D-18059 Rostock, Germany, and Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Strasse 1, D-53121 Bonn, Germany
| | - Uwe Rosenthal
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock, Albert-Einstein-Strasse 29a, D-18059 Rostock, Germany, and Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Strasse 1, D-53121 Bonn, Germany
| |
Collapse
|
12
|
Hydrodefluorination of non-activated C–F bonds by diisobutyl-aluminiumhydride via the aluminium cation [i-Bu2Al]+. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.10.056] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
13
|
Cano J, Sudupe M, Royo P, Mosquera MEG. Evidence of Fluoride Transfer from the Anion of [Zr{C5H3[SiMe2(η1-NtBu)]2}]+[RB(C6F5)3]− Complexes to the Zirconocenium Cation. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200602694] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
14
|
Cano J, Sudupe M, Royo P, Mosquera MEG. Evidence of Fluoride Transfer from the Anion of [Zr{C5H3[SiMe2(η1-NtBu)]2}]+[RB(C6F5)3]− Complexes to the Zirconocenium Cation. Angew Chem Int Ed Engl 2006; 45:7572-4. [PMID: 17054299 DOI: 10.1002/anie.200602694] [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]
Affiliation(s)
- Jesús Cano
- Departamento de Química Inorgánica, Universidad de Alcalá, Campus Universitario, 28871 Alcalá de Henares, Spain
| | | | | | | |
Collapse
|