Reactivity of the [η2-bis(tert-butylsulfonyl)acetylene](carbonyl)(η5-cyclopentadienyl)cobalt complex towards electron-rich and -poor ccetylenes
The electron-rich aminoacetylenes Et2NC2R (2a-c, R = SPh, PPh2, and Ph, respectively) react smoothly with [η2-bis(tert-butylsulfonyl)acetylene](carbonyl)(η5-cyclopentadienyl)co-balt (1) to form the donor-acceptor stabilized (η4-cyclobutadiene)cobalt complexes 3a-c in good yields. However, treatment...
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| Hauptverfasser: | , , , , |
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| Dokumenttyp: | Article (Journal) Festschrift |
| Sprache: | Englisch |
| Veröffentlicht: |
August 24, 2005
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| In: |
European journal of inorganic chemistry
Year: 2005, Heft: 20, Pages: 4086-4089 |
| ISSN: | 1099-0682 |
| DOI: | 10.1002/ejic.200500308 |
| Schlagworte: | |
| Online-Zugang: | Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1002/ejic.200500308 Verlag, lizenzpflichtig, Volltext: https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/ejic.200500308 
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| Verfasserangaben: | Avijit Goswami, Tobias H. Staeb, Frank Rominger, Rolf Gleiter, and Walter Siebert |
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| 245 | 1 | 0 | |a Reactivity of the [η2-bis(tert-butylsulfonyl)acetylene](carbonyl)(η5-cyclopentadienyl)cobalt complex towards electron-rich and -poor ccetylenes |c Avijit Goswami, Tobias H. Staeb, Frank Rominger, Rolf Gleiter, and Walter Siebert |
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| 246 | 3 | 3 | |a Reactivity of the [eta2-bis(tert-butylsulfonyl)acetylene](carbonyl)(eta5-cyclopentadienyl)cobalt complex towards electron-rich and -poor ccetylenes |
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| 500 | |a Dedicated to Prof. Günter Helmchen on the occasion of his 65th birthday | ||
| 500 | |a Im Titel erscheinen die Ziffern 2 und 5 hochgestellt | ||
| 500 | |a Gesehen am 23.10.2020 | ||
| 520 | |a The electron-rich aminoacetylenes Et2NC2R (2a-c, R = SPh, PPh2, and Ph, respectively) react smoothly with [η2-bis(tert-butylsulfonyl)acetylene](carbonyl)(η5-cyclopentadienyl)co-balt (1) to form the donor-acceptor stabilized (η4-cyclobutadiene)cobalt complexes 3a-c in good yields. However, treatment of the electron-poor borylacetylenes 2d-f with the cobalt complex 1 does not lead to the expected (η4-cyclobutadiene)cobalt complexes. Analogously, the reaction of bis(1-phenylethynyl)sulfide (2g) with two equivalents of 1 gives rise to the sulfur-bridged bis[η4-(cyclobutadiene)cobalt] complex 3g. The new cobalt complexes were characterized by NMR spectroscopy, mass spectrometry, and by X-ray structure analysis for 3a, which reveals almost equal C-C bond lengths within the cyclobutadiene ring. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005) | ||
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