Modes of reactivity of cyclic diynes: probing the syn/anti selectivity of tetrathiacycloalkadiynes and mono(alkyne)cobalt complexes
Cyclic tetrathiaalkadiynes in which two 1,4-dithiaalkyne units are connected with alkane bridges of length n and m [A(m.n)] were treated with [?2-bis(tert-butylsulfonyl)acetylene]carbonyl(?5-cyclopentadienyl)cobalt(I) (8a) and several substituted analogues (8b?8e) in order to probe the reactivity of...
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| Main Authors: | , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
03 March 2003
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| In: |
European journal of inorganic chemistry
Year: 2003, Issue: 6, Pages: 1099-1112 |
| ISSN: | 1099-0682 |
| DOI: | 10.1002/ejic.200390141 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1002/ejic.200390141 Verlag, lizenzpflichtig, Volltext: https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/ejic.200390141 
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| Author Notes: | Christoph Benisch, Daniel B. Werz, Rolf Gleiter, Frank Rominger, and Thomas Oeser |
| Summary: | Cyclic tetrathiaalkadiynes in which two 1,4-dithiaalkyne units are connected with alkane bridges of length n and m [A(m.n)] were treated with [?2-bis(tert-butylsulfonyl)acetylene]carbonyl(?5-cyclopentadienyl)cobalt(I) (8a) and several substituted analogues (8b?8e) in order to probe the reactivity of electron-rich cyclic diynes. Both mono- [B(m.n)] and bis(cyclobutadiene) [C(m.n)] complexes were isolated as products of these reactions and the anti/syn ratio of C(m.n) was determined. For m, n < 4 the syn isomers dominate and this is attributed to the configuration of the intermediate metallacycle which is correlated with the conformations of the rings in the mono(cyclobutadiene) products B(m.n). This analysis was corroborated by X-ray structural investigations of the products. (? Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003) |
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| Item Description: | Gesehen am 22.10.2020 |
| Physical Description: | Online Resource |
| ISSN: | 1099-0682 |
| DOI: | 10.1002/ejic.200390141 |