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2011

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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/214833

Biaryl formation in the synthesis of endo and exo-platinacycles

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Recurs relacionat

https://doi.org/10.1039/c1dt10664c

Resum

The reactions of cis-[Pt2(4-MeC6H4)4(m-SEt2)2] with bifunctional ligands ArCH NCH2(2-XC6H4) containing a C-X bond at the ortho positions of the benzyl ring (Ar = 4-ClC6H4, X = Br (1d); Ar = 2,4,6-(CH3)3C6H2, X = Br (1e); Ar = 2,4,6-(CH3)3C6H2, X = Cl (1f); Ar = 2-CH3C6H4, X = Br (1h); Ar = 2,6-F2C6H3, X = Br (1i)) in refluxing toluene were studied. Several types of platinum(II) cyclometallated compounds containing a biaryl linkage were obtained: i) endo-five-membered with a Pt-C(sp2) bond (2d, 2h), ii) endo-six-membered with a Pt-C(sp3) bond (2e, 2f), and iii) exo-five membered with a Pt-C(sp2) bond (2i). The formed biaryl linkage involves the metallated ring for 2i and the non-metallated ring for the endo-metallacycles. The reaction of compounds 2 with PPh3 produced the corresponding phosphine derivatives, some of which (3d, 3e, 3h and 3i) were characterised crystallographically. In addition, compound [PtBr{2-CH3C6H3C6H4CH NCH2(2-C6H4Br)}SEt2] (2c) containing a seven-membered endo-metallacycle was also obtained and characterised crystallographically.

Matèries

Química inorgànica, Platí, Cristal·lografia, Lligands

Matèries (anglès)

Inorganic chemistry, Platinum, Crystallography, Ligands

Citació

Col·leccions

Articles publicats en revistes (Química Inorgànica i Orgànica)
Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)

Citació

CRESPO VICENTE, Margarita Ma., FONT BARDIA, Ma. Mercedes and CALVET PALLÀS, Maria Teresa. Biaryl formation in the synthesis of endo and exo-platinacycles. Dalton Transactions. 2011. Vol. 40, num. 37, pags. 9431-9438. ISSN 1477-9226. [consulted: 13 of August of 2026]. Available at: https://hdl.handle.net/2445/214833

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