双（五氟苯基）吩噻嗪硼烷——一种用于锡烷脱氢偶联的分子内受阻路易斯对催化剂。
Bis(pentafluorophenyl)phenothiazylborane - an intramolecular frustrated Lewis pair catalyst for stannane dehydrocoupling.
作者信息
Bentley Jordan N, Pradhan Ekadashi, Zeng Tao, Caputo Christopher B
机构信息
Department of Chemistry, York University, 4700 Keele Street, Toronto, ON M3J 1P3, Canada.
出版信息
Dalton Trans. 2020 Nov 25;49(45):16054-16058. doi: 10.1039/d0dt00506a.
We synthesized a novel Lewis acidic aminoborane containing a phenothiazyl substituent and demonstrated its potential to catalytically promote the dehydrocoupling of tin hydrides. The observed reactivity would imply a homolytic frustrated Lewis pair type mechanism, however computational analysis suggests a heterolytic mechanism for this reaction. This result represents one of the first frustrated Lewis pair systems to dehydrocouple stannanes in a heterolytic fashion.
我们合成了一种含有吩噻嗪取代基的新型路易斯酸性氨基硼烷，并证明了其催化促进氢化锡脱氢偶联反应的潜力。观察到的反应活性表明可能存在一种均裂受挫路易斯对型机制，然而计算分析表明该反应是通过异裂机制进行的。这一结果代表了首批以异裂方式使锡烷脱氢偶联的受挫路易斯对体系之一。
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