Synthesis of Carbosilane Dendrimers Containing up to Four Metal Layers

被引：14

作者：

Angurell, Inma ^{[1
]}

Rossell, Oriol ^{[1
]}

Seco, Miquel ^{[1
]}

机构：

[1] Univ Barcelona, Dept Quim Inorgan, Barcelona 08028, Spain

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2009年 / 15卷 / 12期

关键词：

carbosilanes; dendrimers; layered compounds; metalation; N; P ligands; ASYMMETRIC HYDROVINYLATION; ALLYLPALLADIUM COMPLEXES; CONVERGENT SYNTHESIS; CATALYTIC BEHAVIOR; DOMINO REACTIONS; PALLADIUM; DENDRONS; RHODIUM; PERIPHERY; CHEMISTRY;

D O I：

10.1002/chem.200802479

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Metallodendrimers are an important class of materials with valuable properties and applications in a large number of areas. Herein, we report a highly efficient route for the synthesis of carbosilane dendrimers containing multimetal layers. The procedure involves the use of heteroditopic and tritopic PN ligands as connectors of the metal layers. The synthetic strategy is based on the ability of the latter ligands to react selectively with the metal complexes [AuCl(tht)] (tht: tetrahydrothiophene). [{RuCl2)(p-cymene)}(2)] and [Pd(eta(3)-2-MeC3H4)-(cod)](OTf) (cod: 1,5-cyclooctadiene; OTf: triflate). In this way, metallodendrimers containing trimetallic Ru-Au-Pd or tetrametallic Ru-Au-Au'-Pd layers have been formed and characterized. The trimetallic dendrimer 9 can be selectively deconstructed by cleavage of the Ru-N or Au-N bonds by reaction with chloride or iodide salts, respectively.

引用

页码：2932 / 2940

页数：9

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