Synthesis of Directed, Tridentate Lewis Acids Based on a Trisilacyclohexane-Backbone via Hydrosilylation

被引:4
作者
Rudlof, Jens [1 ]
Neumann, Beate [1 ]
Stammler, Hans-Georg [1 ]
Mitzel, Norbert W. [1 ]
机构
[1] Bielefeld Univ, Chair Inorgan & Struct Chem, Univ Str 25, D-33615 Bielefeld, Germany
来源
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2021年 / 647卷 / 20-21期
关键词
Poly-Lewis acids; trisilacyclohexanes; hydrosilylation; alkynes; concordant alignment; COMPLEXES; BIDENTATE; SPHERANDS; SILICON; ANION; TIN;
D O I
10.1002/zaac.202100268
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Based on a semiflexible trisilacyclohexane framework a series of directed, tridentate Lewis acids were synthesized by hydrosilylation using various (chloro)methylsilanes. The axial alignment of the three electron deficient functions in one spatial direction allows creating poly-Lewis acids with chalice-like cavities. The directed, tridentate poly-Lewis acids were obtained in quantitative yields and characterized by multinuclear NMR spectroscopy, CHN analysis and X-ray diffraction experiments. The Lewis acidity of the introduced silicon functions was quantified and classified using the Gutmann-Beckett method.
引用
收藏
页码:1967 / 1972
页数:6
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