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Inne
Orthometallated palladium trimers in C–C coupling reactions.
Autorzy
Rok wydania
2012
Czasopismo
Journal of Organometallic Chemistry
Numer woluminu
710
Strony
44-52
DOI
10.1016/j.jorganchem.201203.010
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
A series of trimeric palladium complexes of the [Pd3(μ-Cl)4(P–C)2] (P–C = orthometallated aryl phosphite) formula have been prepared and structurally characterized using 31P NMR and ESI-MS methods. The structure of [Pd3(μ2-Cl)4{k2-P,C–P(O–o-CH3C6H3)(O–o-CH3C6H4)2}2], 1c, was determined by X-ray diffraction. It is compared with the structure of the dimeric complex [Pd2(μ-Cl)2{k2-P,C–P(O–m-CH3C6H3)(O–m-CH3C6H4)2}2], 3b. The trimeric palladium complexes very efficiently catalyzed the Suzuki–Miyaura and Hiyama reactions in ethane-1,2-diol and the Sonogashira cross-coupling in ionic liquids. The mercury test confirmed the homogeneous pathway of the Suzuki–Miyaura reaction, although Pd(0) nanoparticles were observed by TEM in the post-reaction mixture.
Słowa kluczowe
palladium, palladacyclic, aryl phosphite, C-C coupling reactions, Ionic liquids, Pd(0) nanoparticles
Adres publiczny
http://dx.doi.org/10.1016/j.jorganchem.201203.010
Strona internetowa wydawcy
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