Triarylphosphanes with Dendritically Arranged Tetraethylene Glycol Moieties at the Periphery: An Efficient Ligand for the Palladium-Catalyzed Suzuki-Miyaura Coupling Reaction
Triarylphosphanes with Dendritically Arranged Tetraethylene Glycol Moieties at the Periphery: An Efficient Ligand for the Palladium-Catalyzed Suzuki-Miyaura Coupling Reaction
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DOI：
10.1002/anie.200802683
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发表时间：
2008-01-01
影响因子：
16.6
通讯作者：
Tsuji, Yasushi
中科院分区：
文献类型：
--
作者：
Fujihara, Tetsuaki;Yoshida, Shohei;Tsuji, Yasushi
开发高效的催化剂体系是有机化学领域的重要课题之一。对于均相过渡金属催化剂，在金属中心附近（在几埃内）进行[1]改性是开发各种反应（包括CÀC成键）的高效催化剂的常规方法同时，催化环境可以扩展到纳米尺度，这种独特的环境为均相催化提供了新的前景为了构建这样一个独特的催化环境，膦[1d， e]和n -杂环碳（NHC）[4]配体是最合适的组分；这是因为各种各样的这些配体已经成功地实现了高催化活性和选择性。
Development of a highly efficient catalyst systems is one of the most important tasks in organic chemistry. For homogeneous transition-metal catalysts,[1] modification within close proximity of the metal center (within a few angstroms) is a conventional way in which to develop efficient catalysts for various reactions, including CÀC bond-formation.[2] Meanwhile, the catalytic surroundings can be expanded to the nano scale, and this unique environment has offered new prospects for homogeneous catalysis.[3] For constructing such an distinctive catalytic environment, phosphanes [1d, e] and N-heterocyclic carbene (NHC)[4] ligands are the most suitable components; this is because a wide variety of these ligands have been successfully utilized to realize high catalytic activity and selectivity.