Interaction of Gold Acetylides with Gold(I) or Silver(I) Cations

被引：25

作者：

Jasikova, Lucie ^{[1
]}

Roithova, Jana ^{[1
]}

机构：

[1] Charles Univ Prague, Fac Sci, Dept Organ Chem, Prague 12843 2, Czech Republic

来源：

ORGANOMETALLICS | 2013年 / 32卷 / 23期

基金：

欧洲研究理事会;

关键词：

GAS-PHASE SYNTHESIS; CATALYZED HYDRATIVE CARBOCYCLIZATION; GENERALIZED GRADIENT APPROXIMATION; INTERMOLECULAR 2+2 CYCLOADDITION; TERMINAL ALKYNES; GOLD(I)-CATALYZED CYCLOISOMERIZATION; DENSITY FUNCTIONALS; ELEMENTARY STEPS; TANDEM REACTIONS; DUAL-ACTIVATION;

D O I：

10.1021/om4006774

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Structures and properties of complexes between (trimethylphosphino)gold acetylides and another (trimethylphosphino)gold cation have been studied in the light of the possible "dual activation" reaction mode in gold catalysis. Silver salts are often used as cocatalysts in gold catalysis; therefore, also mixed complexes of acetylides with (trimethylphosphino)gold(I) and silver(I) cations have been investigated. Energy-resolved collision-induced dissociation experiments, ion spectroscopy, and density functional theory calculations show that the gold and silver cations preferentially coordinate to the gold acetylides rather than to neutral CC triple bonds in diyne-type substrates. The effect of the binding of two metal cations to acetylides with respect to nucleophilic additions is discussed.

引用

页码：7025 / 7033

页数：9

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