Organisch-Chemisches Institut der Universität Münster, Corrensstraße 40, 48149, Münster, Germany.
Angew Chem Int Ed Engl. 2016 Apr 25;55(18):5526-30. doi: 10.1002/anie.201510994. Epub 2016 Mar 24.
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.
磷/硼取代的六三烯体系 6 经历热诱导的电环化反应，生成环己二烯衍生的 P/B 受阻路易斯对 (FLP) 7。随后的 TEMPO 氧化得到苯并 bridged FLP 8。这两个体系都能活化氢气，并且在高温下用二甲基丙炔酸二甲酯处理时，热稳定的 FLP 会在均三甲苯基团上发生碳-碳偶联反应。
