Cycloneophylpalladium(IV) Complexes: Formation by Oxidative Addition and Selectivity of Their Reductive Elimination Reactions
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https://figshare.com/articles/dataset/Cycloneophylpalladium_IV_Complexes_Formation_by_Oxidative_Addition_and_Selectivity_of_Their_Reductive_Elimination_Reactions/13200260
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资源简介：
The
cycloneophylpalladium(II) complexes [Pd(CH2CMe2C6H4)(κ2-N,N′-L)] (L = RO(CH2)3N(CH2–2-C5H4N)2, R = H, Me) undergo oxidation to Pd(IV) with bromine or iodine to
give [PdX(CH2CMe2C6H4)(κ3-N,N′,N″-L)]X
(X = Br, I) or with methyl iodide to give the transient complexes
[PdMe(CH2CMe2C6H4)(κ3-N,N′,N″-L)]I.
The products of Br2 and I2 oxidation, [PdX(CH2CMe2C6H4)(κ3-N,N′,N″-L)]X (X = Br,
I), are sufficiently stable to be isolated, but they decompose slowly
in solution by reductive elimination to give the palladium(II) products
[PdX(κ3-N,N′,N″-L)]X (X = Br, I). The organic products are formed via either
CH2–Ar or CH2–X bond formation.
In the latter case, neophyl rearrangement and protonolysis steps follow
reductive elimination to give a mixture of organic products. The methylpalladium(IV)
complexes [PdMe(CH2CMe2C6H4)(κ3-N,N′,N″-L)]I decompose at 0 °C by selective reductive elimination
with Me–Ar bond coupling to give the alkylpalladium(II) complex
[Pd(CH2CMe2-2-C6H4Me)(κ3-N,N′,N″-L)]I.
The mechanisms of the reactions have been explored by kinetic studies.
创建时间：
2020-11-06
