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Issue 18, 2006
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Preparation and structures of 1,2-dihydro-1,2-diphosphaacenaphthylenes and rigid backbone stabilized triphosphenium cation

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Abstract

The effect of the special peri-geometry of rigid naphthalene-1,8-diyl backbone in phosphenium formation reaction was investigated. 1,8-Bis(diphenylphosphino) naphthalene and P2I4 afforded triphosphenium iodide in a clean reaction. The reaction of 1,8-bis(dimethylaminophosphino) naphthalene with P2I4 is complex, it afforded four products, all containing the 1,2-dihydro-1,2-diphosphaacenaphthylene motif and heterophosphonium functionalities. Two examples of the rare structural motif of two acenaphthylene units connected head to head and thus a contiguous chain of four phosphorus atoms were also isolated, one compound showing diastereomerization in the solution. All new compounds were fully characterised including single crystal X-ray diffraction.

Graphical abstract: Preparation and structures of 1,2-dihydro-1,2-diphosphaacenaphthylenes and rigid backbone stabilized triphosphenium cation

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Publication details

The article was received on 01 Dec 2005, accepted on 26 Jan 2006 and first published on 15 Feb 2006


Article type: Paper
DOI: 10.1039/B517071K
Dalton Trans., 2006, 2175-2183

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    Preparation and structures of 1,2-dihydro-1,2-diphosphaacenaphthylenes and rigid backbone stabilized triphosphenium cation

    P. Kilian, A. M. Z. Slawin and J. D. Woollins, Dalton Trans., 2006, 2175
    DOI: 10.1039/B517071K

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