Palladium-catalyzed synthesis of alkynylated 1,4: 5,8:11,14:15,18-tetrasulfido(20)annulenes
The syntheses of tetraalkynylated tetrasulfido[20]annulenes 2a−d are described. Treatment of the corresponding brominated tetrasulfido[20]annulene 5a (easily available by McMurry coupling of the brominated 2,2′-bithiophene-5,5′-dicarbaldehydes, 3a) with various acetylenes in the presence of Pd(II) a...
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| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
1998
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| In: |
European journal of organic chemistry
Year: 1998, Jahrgang: 1998, Heft: 3, Pages: 525-529 |
| ISSN: | 1099-0690 |
| DOI: | 10.1002/(SICI)1099-0690(199803)1998:3<525::AID-EJOC525>3.0.CO;2-2 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1002/(SICI)1099-0690(199803)1998:3<525::AID-EJOC525>3.0.CO;2-2 Verlag, lizenzpflichtig, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/%28SICI%291099-0690%28199803%291998%3A3%3C525%3A%3AAID-EJOC525%3E3.0.CO%3B2-2 
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| Verfasserangaben: | Uwe Dahlmann, Claus Krieger, Richard Neidlein |
| Zusammenfassung: | The syntheses of tetraalkynylated tetrasulfido[20]annulenes 2a−d are described. Treatment of the corresponding brominated tetrasulfido[20]annulene 5a (easily available by McMurry coupling of the brominated 2,2′-bithiophene-5,5′-dicarbaldehydes, 3a) with various acetylenes in the presence of Pd(II) and Cu(I) in NH(iPr)2 yields acetylenic tetrasulfido[20]annulenes 2a−d. |
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| Beschreibung: | Gesehen am 06.07.2023 Die Zahl "20" im Zusatz zum Titel wird in eckigen Klammern dargestellt |
| Beschreibung: | Online Resource |
| ISSN: | 1099-0690 |
| DOI: | 10.1002/(SICI)1099-0690(199803)1998:3<525::AID-EJOC525>3.0.CO;2-2 |