Isolation and structural characterization of a titanacyclopropane as key intermediate in the double aryl Grignard addition to 2-(arylethynyl)pyridine derivatives
A titanacyclopropane species, which is a key reaction intermediate in the Ti(OiPr)4-mediated double aryl Grignard addition to 1,2-di(pyridin-2-yl)ethyne and related alkynes, was isolated and fully characterized. Based on this observation a one-pot synthesis of diarylated 1,2-di(pyridin-2-yl)ethanes...
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| Main Authors: | , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
05 February 2018
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| In: |
Chemical communications
Year: 2018, Volume: 54, Issue: 18, Pages: 2228-2231 |
| ISSN: | 1364-548X |
| DOI: | 10.1039/C8CC00478A |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1039/C8CC00478A Verlag, lizenzpflichtig, Volltext: https://pubs.rsc.org/en/content/articlelanding/2018/cc/c8cc00478a 
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| Author Notes: | Francesco Foschi, Torsten Roth, Markus Enders, Hubert Wadepohl, Eric Clot and Lutz H. Gade |
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| 520 | |a A titanacyclopropane species, which is a key reaction intermediate in the Ti(OiPr)4-mediated double aryl Grignard addition to 1,2-di(pyridin-2-yl)ethyne and related alkynes, was isolated and fully characterized. Based on this observation a one-pot synthesis of diarylated 1,2-di(pyridin-2-yl)ethanes and 2-(1,2,2-triarylvinyl)-pyridines was developed, including the tetraarylation of V-shaped 2,6-bis(arylethynyl)pyridines. | ||
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