Lewis Superacidic Tellurenyl Cation-Induced Electrophilic Activation of an Inert Carborane,Chemistry - A European Journal

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Lewis Superacidic Tellurenyl Cation-Induced Electrophilic Activation of an Inert Carborane
Chemistry - A European Journal ( IF 3.9 ) Pub Date : 2021-09-08 , DOI: 10.1002/chem.202103181
Martin Hejda _{1,

2} , Daniel Duvinage ₁ , Enno Lork ₁ , Antonín Lyčka ₃ , Zdeněk Černošek ₂ , Jan Macháček ₄ , Sergey Makarov ₅ , Sergey Ketkov ₅ , Stefan Mebs ₆ , Libor Dostál ₂ , Jens Beckmann ₁

Affiliation

B−H bond activation: The Lewis superacidic aryltellurenyl cation [2-(tBuNCH)C₆H₄Te]⁺ increases the Brønsted acidity of the weakly coordinating carborane anion (CB₁₁H₁₂)⁻ by more than 120 orders of magnitude. Upon heating, the formal B−H bond is converted into an acidic N−H bond, while a Te−B bond is formed. A mechanism for the electrophilic substitution is proposed.

中文翻译：

路易斯超酸性碲基阳离子诱导惰性碳硼烷的亲电活化

B−H 键活化：路易斯超酸性芳基碲基阳离子 [2-( t BuNCH)C ₆ H ₄ Te] ⁺使弱配位碳硼烷阴离子 (CB ₁₁ H ₁₂ ) ^-的布朗斯台德酸性增加超过 120 个数量级。加热后，正式的 B−H 键转化为酸性 N−H 键，同时形成 Te−B 键。提出了亲电取代的机制。

更新日期：2021-10-25

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