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DOI: 10.1039/A707870F (Paper) Reference Section for: J. Chem. Soc., Dalton Trans., 1998, 833-840

Acetato and acetylacetonato ruthenium(II) complexes containing SbPri3, PPri3 and PCy3 as ligands[hair space]‡

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Claus Grünwald, Matthias Laubender, Justin Wolf and Helmut Werner

Abstract

The triply bridged binuclear ruthenium complex [{Ru(η1-O2CMe)(SbPri3)2}2(µ-O2CMe)2(µ-OH2)] 2 was prepared from [Ru(η3-C3H5)2(SbPri3)2] 1 and MeCO2H in the presence of water. Its molecular structure was determined by X-ray crystallography. The bis(acetylacetonato) complex [Ru(acac)2(SbPri3)2] 3, obtained either from 1 or from [Ru(acac)3], is a suitable starting material for the preparation of monosubstituted derivatives [Ru(acac)2(SbPri3)L] (L = PCy3 4, PPri3 5, C2H4 7 or C[double bond, length half m-dash]CHPh 8) as well as of [Ru(acac)2(PPri3)2] 6. Ligand-displacement reactions of 6 with PhC[triple bond, length half m-dash]CR (R = H or SiMe3) and HC[triple bond, length half m-dash]CCPh2(O2CMe) led to the vinylidene- and allenylidene-ruthenium complexes [Ru(acac)2(PPri3)L] [L = C[double bond, length half m-dash]CHPh 9, C[double bond, length half m-dash]C(SiMe3)Ph 10 or C[double bond, length half m-dash]C[double bond, length half m-dash]CPh2 11], respectively. Treatment of 2 with PCy3 and PPri3 gave the compounds [Ru(O2CMe)2(PR3)2] (R = Cy or PPri3), of which the first smoothly reacted with HC[triple bond, length half m-dash]CR to yield [Ru(η2-O2CMe)(η1-O2CMe)([double bond, length half m-dash]C[double bond, length half m-dash]CHR)(PCy3)2] (R = Ph or CO2Me).

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