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Synthesis 1999; 1999(4): 639-643
DOI: 10.1055/s-1999-3454
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Organophosphorus Compounds; 140: Synthesis of New Diphosphapolycycles from a Tricyclic Zirconocene-Phosphaalkyne Dimer Complex

Andreas Mack* , Uwe Bergsträßer, Manfred Regitz
  • *Fachbereich Chemie der Universität Kaiserslautern, Erwin-Schrödinger-Straße, D-67663 Kaiserslautern, Germany; Fax +49(6 31)-2 05-39 21; E-mail: regitz@rhrk.uni-kl.de
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Publication Date:
31 December 1999 (online)

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The tricyclic zirconocene-phosphaalkyne dimer complex 1 reacts with diethyl mesoxalate (5) or tetracyanoethene (7) through Cp2Zr-displacement to furnish the novel oxadiphosphatricyclohexane 6 or the diphosphatricyclohexane 8, respectively. In contrast, treatment of 1 with indanetrione (9) results in the formation of the dioxadiphosphatricyclooctene 10, which has been characterized by X-ray structure analysis.

zirconocene-phosphaalkyne complexes - diphosphapolycycles - cycloadditions