Zinser Caroline M, Nahra Fady, Brill Marcel, Meadows Rebecca E, Cordes David B, Slawin Alexandra M Z, Nolan Steven P, Cazin Catherine S J
EastCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK.
Chem Commun (Camb). 2017 Jul 13;53(57):7990-7993. doi: 10.1039/c7cc02487h.
The simple synthesis of a family of palladates containing an imidazolium counterion is presented. These "ate" complexes can be easily converted into well-defined palladium-N-heterocyclic carbene (NHC) complexes. The synthetic protocols leading to the "ate" and to the Pd-NHC neutral complexes have been exemplified with various NHC ligands. The palladates prove efficient pre-catalysts enabling Suzuki-Miyaura and Mizoroki-Heck reactions.
本文介绍了一系列含有咪唑鎓抗衡离子的钯酸盐的简单合成方法。这些“ate”配合物可以很容易地转化为结构明确的钯- N -杂环卡宾(NHC)配合物。使用各种NHC配体对生成“ate”配合物和Pd - NHC中性配合物的合成方案进行了举例说明。结果表明,这些钯酸盐是用于铃木-宫浦反应和水泽-赫克反应的高效预催化剂。