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Insertions of phenylacetylene with chelated bis(triphenylphosphine) - ruthenium(II)hydridocarbonyl complexes

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Summary

Phenylacetylene reacts stoichiometrically or in excess with the Ru—H bond of RuH(CO)(PPh3)2(L) (LH = 2-hydroxypyridine, 2-hydroxy-6-methylpyridine, acetylacetone, benzoylacetone, 2-hydroxyacetophenone, 2-hydroxypropiophenone, 2-hydroxybenzophenone and 4-methoxy-2-hydroxybenzophenone) in boiling benzene to give σ-vinylic or σ-vinylalkynyl complexes of the type Ru(CO)-(PPh3)2(L)(CH\( = \)CHPh) and Ru(CO)(PPh3)2(L){C-(C\( \equiv \)CPh)\( = \)CHPh} in good yield. The vinylic complex can also be obtained by reacting the sodio derivative of the chelating ligand with the 16e− unsaturated complex, [Ru(CO)Cl(CH\( = \)CHPh)(PPh3)2], in CH2Cl2/MeOH mixture at ambient temperature. These complexes have been characterized by elemental analyses, and i.r., 1H, 13C and 31P n.m.r. spectroscopy.

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Authors and Affiliations

  1. Inorganic Chemistry Division, National Chemical Laboratory, 411008, Pune, India

    Sarada Gopinathan, Shilpa S. Deshpande & Changaramponnath Gopinathan

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  1. Sarada Gopinathan
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  2. Shilpa S. Deshpande
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  3. Changaramponnath Gopinathan
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N.C.L Communication No. 5404.

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Gopinathan, S., Deshpande, S.S. & Gopinathan, C. Insertions of phenylacetylene with chelated bis(triphenylphosphine) - ruthenium(II)hydridocarbonyl complexes. Transition Met Chem 18, 406–408 (1993). https://doi.org/10.1007/BF00208181

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  • DOI: https://doi.org/10.1007/BF00208181

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