C-H activation of 2,4,6-triphenylphosphinine: unprecedented formation of cyclometalated [(P∧C)Ir(III)] and [(P∧C)Rh(III)] complexes

被引:29
作者
Broeckx, Leen E. E. [1 ]
Lutz, Martin [2 ]
Vogt, Dieter [1 ]
Mueller, Christian [1 ]
机构
[1] Eindhoven Univ Technol, Dept Chem & Chem Engn, Lab Homogeneous Catalysis & Coordinat Chem, NL-5600 MB Eindhoven, Netherlands
[2] Univ Utrecht, Bijvoet Ctr Biomol Res Crystal & Struct Chem, NL-3508 TC Utrecht, Netherlands
关键词
IRIDIUM COMPLEXES; ASTERISK-IR; LIGANDS; RH; REACTIVITY; CHEMISTRY; KINETICS; IMINES;
D O I
10.1039/c0cc04660d
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
An unprecedented C-H activation of 2,4,6-triphenylphosphinine by Ir(III) and Rh(III) has been observed. Time-dependent P-31{H-1} NMR spectroscopy gave insight into the cyclometalation reaction and the corresponding coordination compounds were characterized by means of X-ray crystallography. In contrast, 2,4,6-triphenylpyridine does not show any ortho-metalation, demonstrating a remarkable difference in reactivity between these two structurally related aromatic heterocycles.
引用
收藏
页码:2003 / 2005
页数:3
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