Making Copper(0) Nanoparticles in Glycerol: A Straightforward Synthesis for a Multipurpose Catalyst
作者:Trung Dang-Bao、Christian Pradel、Isabelle Favier、Montserrat Gómez
DOI:10.1002/adsc.201700535
日期:2017.8.17
coordination complex di‐μ‐hydroxobis[(N,N,N′,N′‐tetramethylethylenediamine)copper(II)] chloride [Cu(κ2‐N,N‐TMEDA)(μ‐OH)]2Cl2} have been highly efficient in C–C and C–heteroatom bond formation processes. This new catalytic system has proved its performance in C–N couplings and in the synthesis of differently substituted propargylic amines through cross‐dehydrogenative couplings, multi‐component reactions such
从甘油中的Cu(I)和Cu(II)前体直接制备了零价铜小纳米颗粒(CuNPs),并且存在聚乙烯吡咯烷酮作为稳定剂。由于溶剂的蒸气压可忽略不计,这些原始的纳米系统在甘油以及固态下都可以直接表征,甚至在催化后也表现出相对均匀的胶态分散体。CuNPs从该明确定义的配位配合物的二μ-hydroxobis未来[(N,N,N',N'四甲基乙二胺)铜(II)]氯化物[铜(κ 2 - N,N- -TMEDA)(μ- OH)] 2 Cl 2}在C–C和C–杂原子键的形成过程中非常有效。这种新的催化体系已证明其在C–N偶联中以及通过交叉脱氢偶联,多组分反应(如A 3(醛炔炔)和KA 2)合成不同取代的炔丙基胺的性能。(酮-炔-胺)偶联,以及在光滑条件下形成杂环,如苯并呋喃,吲哚嗪和喹啉。通过电感耦合等离子体原子发射光谱法(ICP-AES)分析,从催化相中提取的有机化合物中未检测到大量铜,证明了将铜纳米颗粒高