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Russian Chemical Bulletin

, Volume 44, Issue 7, pp 1306–1310 | Cite as

Oxidation of isomeric η6- and η5-fluorenylchromiumtricarbonyl anions

  • L. N. Novikova
  • N. A. Ustynyuk
  • B. L. Tumanskii
  • P. V. Petrovskii
  • A. A. Borisenko
  • S. V. Kukharenko
  • V. V. Strelets
Organometallic Chemistry

Abstract

The oxidation of the carbon-centered [(η6-C13H9)Cr(CO)3] anion (1) results in formation of (μ-η66-9,9′-bifluorenyl)bis-chromiumtricarbonyl (3) due to coupling of the intermediate carbon-centered radical (1.). The oxidation of the metal-centered anion [(η5-C13H9)Cr(CO)3] (2), which is isomeric to the 1 anion, gives an equilibrium mixture of the chromium-centered radical {(η5-C13H9)Cr(CO)3}. (2.) and its dimer [(η5-C13H9)Cr(CO)3]2 (6). Radical2. readily reacts with MeI and the solvent (THF); the resulting derivatives, (η5-C13H9)Cr(CO)3R (R=Me (10); R=H (7)), undergo fast ricochet inter-ring η5→η6 rearrangements into (η6-9R-C13H9)Cr(CO)3 (R=CH3 (9); R=H (4)).

Key words

transition metal complexes free radicals oxidation dimerization 

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Copyright information

© Plenum Publishing Corporation 1995

Authors and Affiliations

  • L. N. Novikova
    • 1
  • N. A. Ustynyuk
    • 1
  • B. L. Tumanskii
    • 1
  • P. V. Petrovskii
    • 1
  • A. A. Borisenko
    • 1
  • S. V. Kukharenko
    • 2
  • V. V. Strelets
    • 2
  1. 1.A. N. Nesmeyanov Institute of Organoelement CompoundsRussian Academy of SciencesMoscowRussian Federation
  2. 2.Institute of Chemical Physics in ChernogolovkaRussian Academy of SciencesMoscow RegionRussian Federation

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