675140-27-9Relevant academic research and scientific papers
Ph2PI as a reduction/phosphination reagent: Providing easy access to phosphine oxides
Wang, Feijun,Qu, Mingliang,Chen, Feng,Xu, Qin,Shi, Min
supporting information; experimental part, p. 8580 - 8582 (2012/09/22)
The reaction of aldehydes with Ph2PI provides a facile way to the synthesis of pentavalent phosphine compounds with moderate to good yields.
COMPOUNDS COMPRISING PHOSPHORUS-CONTAINING METAL COMPLEXES
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Page 25, (2010/11/30)
Compounds comprising phosphorus-containing metal complexes can be used in electroluminescent devices and have an emission maximum closer to the blue region of the visible light spectrum. The complexes can be used within an organic active layer in electron
Orthopalladated phosphinite complexes as high-activity catalysts for the suzuki reaction
Bedford, Robin B.,Hazelwood, Samantha L. Welch,Horton, Peter N.,Hursthouse, Michael B.
, p. 4164 - 4174 (2007/10/03)
The synthesis of a range of phosphinite ligands PR2(OAr) (R = Ph, iPr), their simple complexes with palladium(II) and their palladacyclic complexes has been investigated. The crystal structure of one of the palladacyclic complexes, [{Pd(μ2-Cl)} {κ2-P, C-PiPr2(OC6H2-2,4-t Bu2)} 2], has been determined. The palladacyclic complexes show extremely high activity in the Suzuki coupling of aryl bromide substrates with phenylboronic acid and can also be used with alkylboronic acid substrates. A comparison of the phosphinite-based catalysts with equivalent phosphite- and phosphine-based systems highlights their superior activity. The orthometallation of the phosphinite ligand in the pre-catalyst appears to be crucial for optimal activity. While the phosphinite palladacycles are only moderately active in the coupling of activated and non-activated aryl chloride substrates, their tricyclohexylphosphine adducts prove to be highly active in the coupling of the deactivated substrate, 4-chloroanisole. This high activity compared with other palladacyclic systems is explained in terms of catalyst longevity. The orthometallated precatalysts appear to undergo a reductive activation process to generate zerovalent active catalysts via reductive elimination of the orthometallated ring with a phenyl introduced by the boronic acid. This implies that the true active catalysts contain 2-arylated ligands. Catalysts formed with such 2-arylated ligands tend to show markedly higher activity than their parent ligands.
