期刊
JOURNAL OF ORGANOMETALLIC CHEMISTRY
卷 805, 期 -, 页码 59-67出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2015.09.028
关键词
Tridentate; Palladium; Seleno-ether; NMR spectroscopy; Suzuki; Catalytic efficiency
Several tri-dentate ionic monochloro-palladium complexes of the type, [PdCl(N<^>E<^>N')][OTf] (3a-c, 3'a, 3'c) and [PdCl(C<^>Se<^>N')][OTf] (3d) (where, E = Se, Te; N' = 2-(3,5-dimethylpyrazol-1-yl)phenyl; N = ethylamine/N, N-dimethylethylamine/picolyl and C = 1-methyl-3-ethyl-2,3-dihydro-1H-imidazol carbene, respectively) were isolated from corresponding dichloro complexes (2aed, 2'a, 2'c) prepared by reacting PdCl2 with equimolar amount of seleno-ether ligands. Some of the representative ionic complexes were unambiguously analyzed by single crystal X-ray diffraction method, and employed for Suzuki-Miyaura carbon-carbon coupling reactions. The effect of subtle changes in ligands, such as variation in auxiliary donor group or chalcogen atom, on crystal structure and catalytic efficiency has been investigated. For the above mentioned studies, auxiliary donor groups of different donor strength such as amines/pyridyl (N-donor) and imidazole based carbene (C-donor) were introduced in seleno-ether ligands. (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据