Synthesis of the First Heteroaryl-Substituted Boryl Complexes: Strong Stabilizing Effects of Boron-Aryl π-Conjugation

被引:6
作者
Braunschweig, Holger [1 ]
Dewhurst, Rian D. [1 ]
Kramer, Thomas [1 ]
机构
[1] Univ Wurzburg, Inst Anorgan Chem, D-97074 Wurzburg, Germany
基金
欧洲研究理事会;
关键词
TRIVALENT BORON; SINGLE-PHOTON; FLUORIDE; ACCEPTOR; DONOR; SYSTEMS; ACTIVATION; REDUCTION; HALIDES; BONDS;
D O I
10.1021/acs.inorgchem.5b00192
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The first examples of heteroarylboryl complexes were prepared and have been found to be unreactive toward a range of strong reductants, strong Lewis bases, and halide-abstraction reagents. The inertness of the complexes is attributed to strong p-conjugation between the p-basic heteroaryl groups and the p-acidic boron atom. This hypothesis is supported by comparison of the structural and spectroscopic properties of the heteroarylboryl complexes with analogous previously reported homoarylboryl complexes, with the former showing greater coplanarity of the aryl ring with the boron atom and much less facile reactivity.
引用
收藏
页码:3619 / 3623
页数:5
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