Synthesis and Reactivity of a Naphtho[l,8-bc]boret

Authors

  • Dr. Achim Hergel,

    1. Anorganisch-chemisches Institut der Universität, Im Neuenheimer Feld 270, D-69120 Heidelberg (FRG), Telefax : Int. code + (6221) 56-4197
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  • Dr. Hans Pritzkow,

    1. Anorganisch-chemisches Institut der Universität, Im Neuenheimer Feld 270, D-69120 Heidelberg (FRG), Telefax : Int. code + (6221) 56-4197
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  • Prof. Dr. Walter Siebert

    Corresponding author
    1. Anorganisch-chemisches Institut der Universität, Im Neuenheimer Feld 270, D-69120 Heidelberg (FRG), Telefax : Int. code + (6221) 56-4197
    • Anorganisch-chemisches Institut der Universität, Im Neuenheimer Feld 270, D-69120 Heidelberg (FRG), Telefax : Int. code + (6221) 56-4197
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  • This work was supported by the Deutsche Forschungsgemeinschaft (Sonderforschungsbereich 247), the Fonds der Chemischen Industrie, and BASF AG

  • Dedicated to Professor Helmut Werner on the occasion of his 60th birthday

Abstract

original image

peri-Bridging of naphthalene by a boron atom causes a large distortion in the sp2 bond angles at C1 and C8 in the naphtho[l,8-bc]boret 1. The resulting ring strain is evident in the chemistry of 1: on treatment with electron-poor boron compounds BX3 an unexpected ring expansion to 2 (X = Cl, Br, OEt) is observed.

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