Synthesis, Reactivity, Crystal Structures and Catalytic Activity of New Chelating Bisimidazolium‐Carbene Complexes of Rh
作者:Macarena Poyatos、Elena Mas‐Marzá、José A. Mata、Mercedes Sanaú、Eduardo Peris
DOI:10.1002/ejic.200390157
日期:2003.3
the ligands means that the stability of these compounds is significantly greater than other carbene complexes of Rh. The compounds have been tested in catalytic reactions such as hydrogen transfer from alcohols to ketones, and hydrosilylation of terminal olefins and alkynes; they show a high activity for both processes. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)
已经在温和条件下获得了一系列新型的 RhI 和 RhIII 的桥接、螯合和钳状 N-杂环卡宾。这些化合物已被充分表征并确定了它们的晶体结构。配体的螯合钳配位意味着这些化合物的稳定性明显高于 Rh 的其他卡宾配合物。这些化合物已经在催化反应中进行了测试,例如从醇到酮的氢转移,以及末端烯烃和炔烃的氢化硅烷化;它们显示出两个过程的高活性。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)