University of Regensburg, Institute of Inorganic Chemistry, 93040, Regensburg, Germany.
University of Hamburg, Department of Chemistry, 20146, Hamburg, Germany.
Chemistry. 2020 May 15;26(28):6113-6117. doi: 10.1002/chem.201905537. Epub 2020 Apr 24.
The hydrogenation of olefins, styrenes, enoates, imines, and sterically hindered tri-substituted olefins was accomplished using the pre-catalyst dilithiumbis(cycloocta-1,5-diene)nickelate(-II) (1). The mild conditions tolerate hydroxyl, halide, ester, and lactone functionalities. Mechanistic studies, including reaction progress analyses, poisoning experiments, and multinuclear NMR monitoring, indicate that a heterotopic (nickel nanoparticle) catalyst is in operation.
使用预催化剂二锂双(环辛-1,5-二烯)镍酸(-II) (1)，可以完成烯烃、苯乙烯、烯酸酯、亚胺和位阻三取代烯烃的加氢反应。温和的条件可以容忍羟基、卤素、酯和内酯官能团。包括反应进度分析、中毒实验和多核 NMR 监测在内的机理研究表明，一种异位（镍纳米颗粒）催化剂在起作用。
