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Issue 16, 2009
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Platinum(II) tetramesityltetraphosphane-1,4-diides

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[Na2(thf)4(P4Mes4)] (1) (Mes = 2,4,6-Me3C6H2) reacts with one equivalent of [PtCl2(cod)] (cod = 1,5-cycloctadiene) or [PtCl2(dppe)] (dppe = bis(diphenylphosphino)ethane) to give the corresponding platinum(II) tetramesityltetraphosphane-1,4-diide complexes [Pt(P4Mes4)(cod)] (2) and [Pt(P4Mes4)(dppe)] (3). The Pt–P bonds of these complexes proved to be extraordinarily stable and did not react with insertion reagents such as tert-butyl isocyanide or cyclohexyl isocyanide. Instead, ligand transfer occurred to give [Pt(P4Mes4)(C[triple bond, length as m-dash]NBut)2] (4) and [Pt(P4Mes4)(C[triple bond, length as m-dash]NCy)2] (5). Further reactions of 2–5 with CO, CS2, white phosphorus, MeI and ethyl diazoacetate led either to formation of cyclo-P4Mes4 and cyclo-P3Mes3 or to unidentified products, in which no evidence of insertion of these reagents into the Pt–P bond was observed.

Graphical abstract: Platinum(II) tetramesityltetraphosphane-1,4-diides

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Supplementary files

Article information

17 Dec 2008
04 Feb 2009
First published
26 Feb 2009

Dalton Trans., 2009, 2915-2920
Article type

Platinum(II) tetramesityltetraphosphane-1,4-diides

S. Gómez-Ruiz, B. Gallego and E. Hey-Hawkins, Dalton Trans., 2009, 2915
DOI: 10.1039/B822675J

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