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Synthesis and transformations of metallacycles

34. New method for the synthesis of spiro[3.3]heptanes and spiro[3.4]octanes by cycloalumination of methylidenecyclobutanes with Et3Al in the presence of a Cp2ZrCl2 catalyst

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Abstract

An efficient method for the synthesis of spiro[3.3]heptanes and spiro[3.4]octanes of various structures has been developed using cycloalumination of substituted methylidenecyclobutanes with Et3Al in the presence of Cp2ZrCl2. A possibility of transformation of the in situ formed spiroaluminacyclopentanes to the corresponding thiophanes, selenophanes, and cyclopentanols in high yields and selectivity has been demonstrated.

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Authors and Affiliations

  1. Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 prosp. Oktyabrya, 450075, Ufa, Russian Federation

    V. A. D’yakonov, O. A. Trapeznikova, A. G. Ibragimov & U. M. Dzhemilev

Authors
  1. V. A. D’yakonov
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  2. O. A. Trapeznikova
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  3. A. G. Ibragimov
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  4. U. M. Dzhemilev
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Correspondence to V. A. D’yakonov.

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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 926–932, May, 2009.

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D’yakonov, V.A., Trapeznikova, O.A., Ibragimov, A.G. et al. Synthesis and transformations of metallacycles. Russ Chem Bull 58, 948–954 (2009). https://doi.org/10.1007/s11172-009-0121-4

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  • DOI: https://doi.org/10.1007/s11172-009-0121-4

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