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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.
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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。
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更新日期:2021-10-25
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