Thermodynamic control of oxidative addition and reductive elimination processes in cis-bis(dimethoxyboryl)-bis(tricyclohexylphosphine)platinum(II).
نویسندگان
چکیده
cis-[(Cy3P)2Pt{B(OMe)2}2] (1) was obtained in quantitative yield and fully characterised. The thermal stability of 1 was investigated in solution using multinuclear NMR spectroscopy revealing a hitherto unknown temperature-dependent equilibrium between 1 and the corresponding starting materials [Pt(PCy3)2] and free B2(OMe)4.
منابع مشابه
Untersuchungen zur reduktiven Eliminierung des Biphenyl-Systems aus substituierten cis-Bis(phenyI)bis(triphenylphosphan)platin(II)-Verbindungen On the Reductive Elimination of the Biphenyl System from Substituted ci6-Bis(phenyl)bis(triphenylphosphane)platinum(II) Compounds
Platinum-organic Compounds, Syntheses, Reductive Elimination, Activation Parameters The Compounds cw-[Pt(PPh3)2(4-X-C6H4)2] [X = F, Cl, CF3, OCH3, N(CH3)2] and cis[Pt(PPh3)2(4-X-C6H4)(Y-C6H4)] [X = F/Y = 3 Cl, 4-C1, 3-CH30, 4 -CH 3 0; X = CF3/Y = 3-F, 4-F] have been synthesized and studied thermally with respect to the reductive elimination of disubstituted biphenyls. Activation parameters A H+...
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Dieser Reaktionstyp ist über das Grundsätzliche der Fragestellung hinaus auch von praktischer Bedeutung, weil er einen Teilschritt eines katalytischen Zyklus zur Synthese substituierter Biphenyle darstellt. Bei den bisherigen Untersuchungen über den Mechanismus von (1) konnten durch kinetische Messungen [1] folgende Erkenntnisse über den Einfluß von Substituenten auf die Aktivierungsparameter u...
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ورودعنوان ژورنال:
- Chemical communications
دوره 49 45 شماره
صفحات -
تاریخ انتشار 2013