Synthesis of Directed, Tridentate Lewis Acids Based on a Trisilacyclohexane-Backbone via Hydrosilylation,Zeitschrift für anorganische und allgemeine Chemie

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Synthesis of Directed, Tridentate Lewis Acids Based on a Trisilacyclohexane-Backbone via Hydrosilylation
Zeitschrift für anorganische und allgemeine Chemie ( IF 1.1 ) Pub Date : 2021-08-20 , DOI: 10.1002/zaac.202100268
Jens Rudlof ₁ , Beate Neumann ₁ , Georg Stammler ₁ , Norbert Werner Mitzel ₂

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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.

中文翻译：

基于三硅杂环己烷骨架的定向三齿路易斯酸的氢化硅烷化合成

基于半柔性三硅杂环己烷骨架，使用各种（氯）甲基硅烷通过氢化硅烷化合成了一系列定向的三齿路易斯酸。三个缺电子函数在一个空间方向上的轴向排列允许产生具有圣杯状空腔的聚路易斯酸。以定量产率获得定向的三齿聚路易斯酸，并通过多核 NMR 光谱、CHN 分析和 X 射线衍射实验表征。使用 Gutmann-Beckett 方法对引入的硅官能团的路易斯酸度进行量化和分类。

更新日期：2021-08-20

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