Formation of Thermally Robust Frustrated Lewis Pairs by Electrocyclic Ring Closure Reactions
Formation of Thermally Robust Frustrated Lewis Pairs by Electrocyclic Ring Closure Reactions
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DOI：
10.1002/anie.201510994
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发表时间：
2016-04-25
影响因子：
16.6
通讯作者：
Erker, Gerhard
中科院分区：
文献类型：
--
作者：
Chen, Guo-Qiang;Kehr, Gerald;Erker, Gerhard
磷/硼取代的己三烯体系6经历热诱导的电环闭合以产生环己二烯衍生的P/B受抑刘易斯对（FLP）7。随后的克里思氧化得到亚苯基桥接的FLP 8。这两个系统激活二氢和热鲁棒的FLP经历碳-碳偶联反应后，在高温下用乙炔二羧酸二甲酯处理的异亚丙基丙酮基团。
The phosphorus/boron-substituted hexatriene systems 6 undergo thermally induced electrocyclic ring closure to yield the cyclohexadiene-derived P/B frustrated Lewis pairs (FLPs) 7. Subsequent TEMPO oxidation gives the phenylene-bridged FLPs 8. Both systems activate dihydrogen and the thermally robust FLPs undergo carbon-carbon coupling reactions at a mesityl group upon treatment with dimethyl acetylenedicarboxylate at elevated temperatures.