Primitivo Ludovica, De Angelis Martina, Necci Andrea, Di Pietro Federica, Ricelli Alessandra, Caschera Daniela, Pilloni Luciano, Suber Lorenza, Righi Giuliana
Department of Chemistry, Sapienza University of Rome P.le A. Moro 5 00185 Rome Italy
CNR-IBPM-c/o Dep. Chemistry, Sapienza University of Rome 00185 Rome Italy
Nanoscale Adv. 2022 Dec 24;5(3):627-632. doi: 10.1039/d2na00692h. eCollection 2023 Jan 31.
Silver thiolate nanoclusters have been functionalized with a chiral amino alcohol ligand that has previously shown high catalytic efficiency in different asymmetric reactions. The as-developed nanostructured catalyst, which can be easily recovered by simple centrifugation, has been tested in the addition of nitromethane to aromatic aldehydes, showing the same catalytic activity as the homogeneous ligand. Moreover, it was reused for two further recycling cycles without loss of efficiency. To the best of our knowledge, this is the first example of silver nanoclusters employed as a support for chiral ligands for heterogeneous phase asymmetric catalysis.
硫醇银纳米团簇已用手性氨基醇配体进行了功能化修饰，该配体此前在不同的不对称反应中表现出高催化效率。所开发的纳米结构催化剂可通过简单离心轻松回收，已在硝基甲烷与芳香醛的加成反应中进行了测试，显示出与均相配体相同的催化活性。此外，它还可再重复使用两个循环而不损失效率。据我们所知，这是银纳米团簇用作非均相不对称催化手性配体载体的首个实例。
