Quantum dots (2–5 nm) of copper and copper/palladium mixtures are found to be good catalysts for Suzuki cross-coupling. The catalysts are applicable to a wide range of iodo- and bromoaryl substrates, and give moderate yields using chloroaryl substrates. Cluster activity and stability is found to depend strongly on the preparation method and the reaction conditions. The mechanism of cluster deactivation
发现
铜和
铜/
钯混合物的量子点(2–5 nm)是铃木交叉偶联的良好催化剂。该催化剂适用于各种
碘代和
溴代芳基底物,使用
氯代芳基底物可得到中等收率。发现簇的活性和稳定性在很大程度上取决于制备方法和反应条件。研究和讨论了簇失活的机理和簇催化反应对取代基效应的敏感性。