(η5-Cyclopentadienyl)(η2-bis(tert-butylsulfonyl)acetylene)(carbonyl)cobalt: an electrophilic reagent to yield CpCo-stabilized cyclobutadiene derivatives
Various substituted (R=H, CH3, SiMe3, CO2Me, COCH3, EtMe4) (R-η5-cyclopentadienyl)[η2-bis(tert-butylsulfonyl)acetylene](carbonyl)cobalt complexes (8-13) proved to be very reactive towards alkynes under rather mild conditions. Dithiaacetylenes reacted at room temperature, dialkyl- and diarylalkynes h...
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| Main Authors: | , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
2002
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| In: |
Journal of organometallic chemistry
Year: 2001, Volume: 641, Issue: 1/2, Pages: 102-112 |
| ISSN: | 1872-8561 |
| DOI: | 10.1016/S0022-328X(01)01364-X |
| Online Access: | Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1016/S0022-328X(01)01364-X Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S0022328X0101364X 
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| Author Notes: | Christoph Benisch, Rolf Gleiter, Tobias H. Staeb, Bernhard Nuber, Thomas Oeser, Hans Pritzkow, Frank Rominger |
| Summary: | Various substituted (R=H, CH3, SiMe3, CO2Me, COCH3, EtMe4) (R-η5-cyclopentadienyl)[η2-bis(tert-butylsulfonyl)acetylene](carbonyl)cobalt complexes (8-13) proved to be very reactive towards alkynes under rather mild conditions. Dithiaacetylenes reacted at room temperature, dialkyl- and diarylalkynes had to be heated to 80-90°C to yield the corresponding R-CpCo-stabilized cyclobutadiene complexes 18-37 and 39-42. X-ray investigations on 24-26, 30, 36 and 39-41 showed almost equal CC bond lengths in the cyclobutadiene rings. |
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| Item Description: | Im Titel sind die Ziffern 5 und 2 hochgestellt Im Titel steht "η2-bis(tert-butylsulfonyl)acetylene" in eckiger Klammer Available online 14 December 2001 Gesehen am 30.10.2020 |
| Physical Description: | Online Resource |
| ISSN: | 1872-8561 |
| DOI: | 10.1016/S0022-328X(01)01364-X |