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近几年来,三价铑催化剂被广泛应用于C-H键活化研究.利用这类催化剂独特的立体和配位性质,在相对温和条件下能够实现催化体系的底物多样性、高活性、高官能团兼容性等优点.虽然多种不饱和底物可以和芳烃经C-H活化机理发生偶联,但环氧四氢萘和环氮杂四氢萘作为张力活化的烯烃参与C-H活化的偶联反应尚未见报道.中国科学院大连化学物理研究所李兴伟课题组实现了环氮杂四氢萘在氧化剂存在条件下和2-苯基吡啶等芳环的氧化
In recent years, the trivalent rhodium catalysts have been widely used in the CH bond activation studies. Taking advantage of the unique stereospecific and coordination properties of these catalysts, the substrate diversity, high activity and high functional group compatibility of the catalyst system can be achieved under relatively mild conditions Etc. Although a variety of unsaturated substrates can be coupled with aromatic hydrocarbons via CH activation mechanism, the reaction of epoxytetrahydronaphthalene and ring-aza-tetrahydronaphthalene as a tension-activated alkene to participate in CH activation has not been reported . Li Xingwei, Research Institute, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, China The group led to the oxidation of aza-naphthalene in the presence of an oxidant and aromatic rings such as 2-phenylpyridine