Crystal Structure of 2-Lithio-2-methyl-1,3-dithiane Tetramethylethylenediamine

Authors

  • Dipl.-Chem. René Amstutz,

    1. Organisch-chemisches Laboratorium der ETH, ETH-Zentrum, Universitätstrasse 16, CH-8092 Zürich (Switzerland)
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  • Prof. Dr. Dieter Seebach,

    1. Organisch-chemisches Laboratorium der ETH, ETH-Zentrum, Universitätstrasse 16, CH-8092 Zürich (Switzerland)
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  • Paul Seiler,

    1. Organisch-chemisches Laboratorium der ETH, ETH-Zentrum, Universitätstrasse 16, CH-8092 Zürich (Switzerland)
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  • Dr. Bernd Schweizer,

    1. Organisch-chemisches Laboratorium der ETH, ETH-Zentrum, Universitätstrasse 16, CH-8092 Zürich (Switzerland)
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  • Prof. Dr. Jack D. Dunitz

    Corresponding author
    1. Organisch-chemisches Laboratorium der ETH, ETH-Zentrum, Universitätstrasse 16, CH-8092 Zürich (Switzerland)
    • Organisch-chemisches Laboratorium der ETH, ETH-Zentrum, Universitätstrasse 16, CH-8092 Zürich (Switzerland)
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Abstract

original image

Surprising structural features were revealed by an X-ray study of the title compound (1): it crystallizes as dimer and one molecule each of the solvent TMEDA (tetramethylethylenediamine) is coordinated in spirane fashion to a Li atom. The equatorial position of the lithium is thus possibly a result of steric rather than electronic factors.

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