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Baumann, Benedikt N. ; Lange, Helge ; Seeberger, Felix ; Büschelberger, Philipp ; Wolf, Robert ; Hapke, Marko

Cobalt and iron metallates as catalysts for cyclization reactions of diynes and triynes: [2+2+2] Cycloaddition vs. Garratt-Braverman reaction

Baumann, Benedikt N., Lange, Helge, Seeberger, Felix, Büschelberger, Philipp, 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, p. 113482.

Date of publication of this fulltext: 09 Nov 2023 17:46
Article
DOI to cite this document: 10.5283/epub.54958


Abstract

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 ...

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.



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Details

Item typeArticle
Journal or Publication TitleMolecular Catalysis
Publisher:ELSEVIER SCIENCE BV
Place of Publication:AMSTERDAM
Volume:550
Page Range:p. 113482
Date20 September 2023
InstitutionsChemistry and Pharmacy > Institut für Anorganische Chemie > Arbeitskreis Prof. Dr. Robert Wolf
Identification Number
ValueType
10.1016/j.mcat.2023.113482DOI
KeywordsTRANSITION-METALS; OXIDATION-STATE; CYCLOTRIMERIZATION; ALKYNES; TRIMERIZATION; COMPLEXES; REARRANGEMENT; CONSTRUCT; ETHERS; Metallates; [2+2+2] Cycloaddition reaction; Garratt-Braverman reaction; Triynes; Arenes
Dewey Decimal Classification500 Science > 540 Chemistry & allied sciences
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgPartially
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-549584
Item ID54958

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