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hits: 11
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  • Lewis Base Free Oxophosphon... Lewis Base Free Oxophosphonium Ions: Tunable, Trigonal‐Planar Lewis Acids
    Wünsche, Marius A.; Witteler, Tim; Dielmann, Fabian Angewandte Chemie International Edition, June 11, 2018, Volume: 57, Issue: 24
    Journal Article
    Peer reviewed

    Oxophosphonium ions (R2P=O)+ are fascinating chemical intermediates related to the well‐known acylium cations (RC=O)+, and comprise a tricoordinate phosphorus(V) center with a phosphorus–oxygen ...
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  • Imidazolin-2-ylidenaminopho... Imidazolin-2-ylidenaminophosphines as Highly Electron-Rich Ligands for Transition-Metal Catalysts
    Wünsche, Marius A.; Mehlmann, Paul; Witteler, Tim ... Angewandte Chemie (International ed.), September 28, 2015, Volume: 54, Issue: 40
    Journal Article
    Peer reviewed

    A variety of chemical transformations benefit from the use of strong electron‐donating ancillary ligands, such as alkylphosphines or N‐heterocyclic carbenes when electron‐rich metal centers are ...
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Available for: BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SBCE, SBMB, UL, UM, UPUK
3.
  • Lewis‐Basen‐freie Oxophosph... Lewis‐Basen‐freie Oxophosphoniumionen: variable, trigonal‐planare Lewis‐Säuren
    Wünsche, Marius A; Witteler, Tim; Dielmann, Fabian Angewandte Chemie, 06/2018, Volume: 130, Issue: 24
    Journal Article
    Peer reviewed

    Oxophosphoniumionen (R2P=O)+ sind faszinierende chemische Intermediate, die mit den bekannten Acyliumkationen (RC=O)+ verwandt sind. Sie bestehen aus einem dreifach koordinierten Phosphor(V)‐Zentrum ...
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Available for: BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SBCE, SBMB, UL, UM, UPUK
4.
  • Lewis base-free thiophospho... Lewis base-free thiophosphonium ion: a cationic sulfur atom transfer reagent
    Löwe, Pawel; Witteler, Tim; Dielmann, Fabian Chemical communications (Cambridge, England), 05/2021, Volume: 57, Issue: 41
    Journal Article
    Peer reviewed
    Open access

    Phosphorus( v ) sulfide and Lawesson's reagent are commonly used thionating reagents which are considered to operate after dissociation into highly reactive dithiophosphorane fragments. We report the ...
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  • Dialkyl(1,3-diarylimidazoli... Dialkyl(1,3-diarylimidazolin-2-ylidenamino)phosphines: Strongly Electron-Donating, Buchwald-Type Phosphines
    Witteler, Tim; Darmandeh, Heidar; Mehlmann, Paul ... Organometallics, 09/2018, Volume: 37, Issue: 18
    Journal Article
    Peer reviewed

    The synthesis and properties of a series of strongly electron-donating, sterically demanding dialkyl­(1,3-diaryl­imidazolin-2-ylidenamino)­phosphines (IAPs) are reported. Determination of the TEP ...
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6.
  • Isolation, characterization... Isolation, characterization and reactivity of three-coordinate phosphorus dications isoelectronic to alanes and silylium cations
    Mehlmann, Paul; Witteler, Tim; Wilm, Lukas F B ... Nature chemistry, 12/2019, Volume: 11, Issue: 12
    Journal Article
    Peer reviewed

    Three-coordinate main group Lewis acids are exceedingly important reagents in chemical synthesis. In contrast to the well-established chemistries of neutral group 13 and cationic group 14 species, ...
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Available for: EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
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  • A Triarylated 1,2,3‐Triazol... A Triarylated 1,2,3‐Triazol‐5‐ylidene Ligand with a Redox‐Active Ferrocenyl Substituent for Rhodium(I)‐Catalyzed Hydroformylation of 1‐Octene
    Aucamp, Danielle; Witteler, Tim; Dielmann, Fabian ... European journal of inorganic chemistry, March 3, 2017, Volume: 2017, Issue: 9
    Journal Article
    Peer reviewed
    Open access

    A series of rhodium(I)–1,2,3‐triazol‐5‐ylidene (trz) complexes are described, containing either a novel triarylated trz ligand A′ (N1, N3‐arylated, C4‐ferrocenyl) {complexes 1, Rh(A′)Cl(cod); 4, ...
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8.
  • Lewis‐Basen‐freie Oxophosph... Lewis‐Basen‐freie Oxophosphoniumionen: variable, trigonal‐planare Lewis‐Säuren
    Wünsche, Marius A.; Witteler, Tim; Dielmann, Fabian Angewandte Chemie, June 11, 2018, 2018-06-11, Volume: 130, Issue: 24
    Journal Article
    Peer reviewed

    Oxophosphoniumionen (R2P=O)+ sind faszinierende chemische Intermediate, die mit den bekannten Acyliumkationen (RC=O)+ verwandt sind. Sie bestehen aus einem dreifach koordinierten Phosphor(V)‐Zentrum ...
Full text
Available for: BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SBCE, SBMB, UL, UM, UPUK
9.
  • Imidazolin‐2‐ylidenaminopho... Imidazolin‐2‐ylidenaminophosphane als sehr elektronenreiche Liganden für Übergangsmetallkatalysatoren
    Wünsche, Marius A.; Mehlmann, Paul; Witteler, Tim ... Angewandte Chemie, September 28, 2015, Volume: 127, Issue: 40
    Journal Article
    Peer reviewed

    Eine Vielzahl chemischer Umwandlungen, bei denen elektronenreiche Metallzentren benötigt werden, profitiert vom Einsatz stark elektronendonierender Hilfsliganden wie Alkylphosphane oder ...
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Available for: BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SBCE, SBMB, UL, UM, UPUK
10.
  • Imidazolin-2-ylidenaminopho... Imidazolin-2-ylidenaminophosphane als sehr elektronenreiche Liganden für Übergangsmetallkatalysatoren
    Wünsche, Marius A.; Mehlmann, Paul; Witteler, Tim ... Angewandte Chemie, 09/2015, Volume: 127, Issue: 40
    Journal Article
    Peer reviewed

    Abstract Eine Vielzahl chemischer Umwandlungen, bei denen elektronenreiche Metallzentren benötigt werden, profitiert vom Einsatz stark elektronendonierender Hilfsliganden wie Alkylphosphane oder ...
Full text
Available for: BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SBCE, SBMB, UL, UM, UPUK
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hits: 11

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