Baumann, Benedikt N. and Lange, Helge and Seeberger, Felix and Bueschelberger, Philipp and Wolf, Robert and Hapke, Marko (2023) Cobalt and iron metallates as catalysts for cyclization reactions of diynes and triynes: [2+2+2] Cycloaddition vs. Garratt-Braverman reaction. MOLECULAR CATALYSIS, 550: 113482. ISSN 2468-8231
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Highly reduced anthracene and naphthalene cobaltates and ferrates catalyze the cyclization of diynes and triynes, furnishing expected [2 + 2 + 2] cycloaddition products as well as unexpected annulation products from Garratt-Braverman cyclization reactions. The anionic Cp*Fe-naphthalene complex exclusively catalyzes the latter reaction. The Garratt-Braverman reactions show a large solvent-dependent substrate conversion. Diynes and triynes afforded the corresponding substituted 1,3-dihydronaphthofurane products with yields up to 91% isolated yield.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TRANSITION-METALS; OXIDATION-STATE; CYCLOTRIMERIZATION; ALKYNES; TRIMERIZATION; COMPLEXES; REARRANGEMENT; CONSTRUCT; ETHERS; Metallates; [2+2+2] Cycloaddition reaction; Garratt-Braverman reaction; Triynes; Arenes |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Arbeitskreis Prof. Dr. Robert Wolf |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 30 Jan 2024 07:52 |
| Last Modified: | 30 Jan 2024 07:52 |
| URI: | https://pred.uni-regensburg.de/id/eprint/59950 |
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