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Polynuclear Enantiopure Salen–Mesoionic Carbene Hybrid Complexes
Organometallics ( IF 2.8 ) Pub Date : 2017-10-31 00:00:00 , DOI: 10.1021/acs.organomet.7b00729
Juliane Schmid 1 , Wolfgang Frey 1 , René Peters 1
Affiliation  

Salen ligands and mesoionic carbene (MIC) ligands constitute important ligand classes in homogeneous catalysis. In this article we describe the first integration of a salen moiety and MIC donors in the same catalyst entity. Homo- and heterometallic polynuclear metal complexes could be selectively prepared by first installing a metal center (Ni(II), Pd(II)) in the N2O2 salen sphere followed by metalation of the mesoionic carbenes (Ag(I), Pd(II)). The silver complexes could be used for transmetalations to form Au(III) complexes. Several complexes showed catalytic activity in the 1,4-addition of an oxindole to a nitroolefin.

中文翻译:

多核对映纯Salen–中离子碳杂杂复合物

Salen配体和中离子卡宾(MIC)配体在均相催化中构成重要的配体类别。在本文中,我们描述了Salen部分和MIC供体在同一催化剂实体中的首次整合。可以通过首先在N 2 O 2塞伦球中安装一个金属中心(Ni(II),Pd(II)),然后将金属离子碳烯(Ag(I),Pd)金属化,来选择性地制备同金属和杂金属多核金属配合物(II))。银络合物可用于金属转移以形成Au(III)络合物。几种配合物在将吲哚的1,4-加成至硝基烯烃中显示出催化活性。
更新日期:2017-10-31
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