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1-Trimethylsilylphosphirane as a ligand and as a stable masked reagent for phosphirane

Tallis, Huw Aubrey, Newman, Paul David ORCID:, Edwards, Peter Gerald ORCID:, Ooi, Liling and Stasch, Andreas ORCID: 2008. 1-Trimethylsilylphosphirane as a ligand and as a stable masked reagent for phosphirane. Dalton Transactions 2008 (1) , pp. 47-53. 10.1039/b715327a

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1-Trimethylsilylphosphirane, C2H4PSiMe3, has been prepared on a multi gram scale from P(SiMe3)3 via ClCH2CH2P(SiMe3)2. C2H4PSiMe3 is readily susceptible to protonolysis forming the thermally unstable parent phosphirane, C2H4PH, in good yields. Reaction of C2H4PSiMe3 with fac-M (CO)3(CH3CN)3 (M = Cr, Mo) or [Fe(η5-C5H5)(η6-C6H6)](PF6) give rise to fac-M(CO)3(C2H4PSiMe3)3 and [Fe(η5-C5H5)(C2H4PSiMe3)3](PF6) respectively. Protonolysis of the free or coordinated 1-trimethylsilylphosphirane readily causes P–Si cleavage to give rise to the parent C2H4PH or the respective complexes, fac-M(CO)3(C2H4PH)3 and fac-[Fe(η5-C5H5)(C2H4PH)3](PF6) in situ. All new complexes are characterised by analytical and spectroscopic methods and the X-ray crystal structures of fac-Cr(CO)3(C2H4PSiMe3)3 and fac-Mo(CO)3(C2H4PH)3 have also been determined.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Subjects: Q Science > QD Chemistry
Publisher: Royal Society of Chemistry
ISSN: 1477-9226
Last Modified: 17 Oct 2022 09:54

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