Ambiphilic reactivity of a ruthenaphosphaalkenyl: synthesis of P-pyrazolylphosphaalkene complexes of ruthenium(0)

Trathen, Nicola, Greenacre, Victoria K, Crossley, Ian and Roe, Mark (2013) Ambiphilic reactivity of a ruthenaphosphaalkenyl: synthesis of P-pyrazolylphosphaalkene complexes of ruthenium(0). Organometallics, 32 (9). pp. 2501-2504. ISSN 0276-7333

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Abstract

The novel ruthenaphosphaalkenyl complex [Ru{P═CH(SiMe3)}Cl(CO)(PPh3)2], prepared from [RuHCl(CO)(PPh3)3] and Me3SiC≡P, exhibits ambiphilic behavior, reacting at phosphorus with both nucleophiles and electrophiles. Its reaction with Li(pz′) or K[HB(pz′)3] (pz′ = pz, pz*) affords [Ru{η1-N:η2-P,C-P(pz′)═CH(SiMe3)}(CO)(PPh3)2], a rare example of a ruthenium(0) η2-phosphaalkene complex and the first example of a P-pyrazolylphosphaalkene. Conversely, reaction with the electrophilic PhHgCl leads to metalation at phosphorus, affording [Ru{η1-P(HgPh)═CH(SiMe3)}Cl2(CO)(PPh3)2].

Item Type: Article
Schools and Departments: School of Life Sciences > Chemistry
Subjects: Q Science
Depositing User: Deeptima Massey
Date Deposited: 20 May 2013 06:47
Last Modified: 20 May 2013 06:47
URI: http://srodev.sussex.ac.uk/id/eprint/44742
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