Synthesis 2015; 47(14): 2038-2054
DOI: 10.1055/s-0034-1380535
paper
© Georg Thieme Verlag Stuttgart · New York

6-[7]Heliphene)tricarbonylchromium via an Optimized Preparation of [7]Heliphene

Authors

  • Daniel Holmes

    Department of Chemistry, University of California at Berkeley, Berkeley, CA 94720-1460, USA   Email: kpcv@berkeley.edu
  • Sang Yeul Lee

    Department of Chemistry, University of California at Berkeley, Berkeley, CA 94720-1460, USA   Email: kpcv@berkeley.edu
  • Sabine D. Lotz

    Department of Chemistry, University of California at Berkeley, Berkeley, CA 94720-1460, USA   Email: kpcv@berkeley.edu
  • Son C. Nguyen

    Department of Chemistry, University of California at Berkeley, Berkeley, CA 94720-1460, USA   Email: kpcv@berkeley.edu
  • Gaston R. Schaller

    Department of Chemistry, University of California at Berkeley, Berkeley, CA 94720-1460, USA   Email: kpcv@berkeley.edu
  • Rachel H. Schmidt-Radde

    Department of Chemistry, University of California at Berkeley, Berkeley, CA 94720-1460, USA   Email: kpcv@berkeley.edu
  • K. Peter C. Vollhardt*

    Department of Chemistry, University of California at Berkeley, Berkeley, CA 94720-1460, USA   Email: kpcv@berkeley.edu
Further Information

Publication History

Received: 11 February 2015

Accepted: 16 March 2015

Publication Date:
23 April 2015 (online)


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Abstract

Optimized procedures to [7]heliphene are described that allowed the synthesis of (η6-[7]heliphene)tricarbonylchromium and a preliminary exploration of its chemical behavior. DFT calculations provide structural and energetic information on this complex and its haptomeric isomers. Attempts to prepare the corresponding ([7]heliphene)chromium sandwich failed so far, but DFT evidence is presented to indicate that the target should be accessible.

Supporting Information