Redox troponization of (η5-cyclopentadienyl)(η4-4-menthyl-4-exo-trichloromethylcyclohexa-2,5-dien-1-one)rhodium as a novel approach to the synthesis of metal-coordinated nonbenzenoid aromatics of the tropone seriesas a novel approach to the synthesis of metal-coordinated nonbenzenoid aromatics of the tropone series |
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Authors: | V A Nikanorov T V Storozhev S G Novikov S V Sergeev D V Zverev |
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Institution: | (1) A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 117813 Moscow, Russian Federation |
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Abstract: | The possibility of redox troponization of a gem-polyhalomethylated semiquinoid system, π-coordinated to a metal atom, was
shown in relation to the reaction of (η5-cyclopentadienyl)(η4-4-menthyl-4-exo-trichloromethylcyclohexa-2,5-dien-1-one)rhodium with Pd(PPh3)4. The reaction occurs with retention of the metal coordination affording a sevenmembered organometallic derivative of the
nonbenzoid aromatic series, namely, (η5-cyclopentadienyl)(η4-4-chloro-5-menthylcyclohepta-2,4,6-trien-1-one)rhodium, whose structure was established by means of elemental analysis, NMR,
and mass-spectral data.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1255–1256, June, 1998. |
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Keywords: | cyclohexadienones tropones redox troponization rhodium(1) π -complexes Pd(0) complexes use in the fine organic sysnthesis |
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