The “cation pools” of diarylcarbenium ions have been generated by the low-temperature electrochemical oxidation of diphenylmethane derivatives. In addition to diphenylmethanes having various substituents, 9,10-dihydroanthracene, dibenzosuberane, and xanthenes, which are annulated derivatives of diphenylmethane were also found to serve as a precursor of cation pools. The generation of the diarylcarbenium ion was confirmed by low-temperature NMR analysis and cold-spray mass analysis. Reactivity was also investigated by reactions with various carbon nucleophiles such as allyltrimethylsilane, 1,3,5-trimethylbenzene, and anisole.
通过二苯
甲烷衍
生物的低温电
化学氧化,生成了二芳基碳正离子"离子池"。除了具有各种取代基的二苯
甲烷外,我们还发现
9,10-二氢蒽、二苯并苏烯和
氧杂蒽等二苯
甲烷的稠合衍
生物也能作为离子池的前体。通过低温NMR分析和冷喷雾质谱分析证实了二芳基碳正离子的生成。此外,还研究了其与各种碳亲核试剂如烯丙基三甲基
硅烷、1,3,5-三甲基苯和茴香的反应活性。