title: Synthesis of substituted benzo[ij]imidazo[2,1,5-de]quinolizine by rhodium(III)-catalyzed multiple C-H activation and annulations.
abstract: The cascade oxidative annulation reactions of aryl imidazoles with two molecules of alkynes via multiple C-H activation proceed efficiently in the presence of [Cp*RhCl2]2 and Cu(OAc)2·H2O to give substituted benzo[ij]imidazo[2,1,5-de]quinolizine-based polyheteroaromatic compounds. This method is compatible with various functional groups, which are very useful for further synthetic transformations.
authors.affiliation: State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China. bqwang@nankai.edu.cn.
authors.forename: Qingmei
authors.initials: Q
authors.lastname: Ge
authors.affiliation: State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China. bqwang@nankai.edu.cn.
authors.forename: Bin
authors.initials: B
authors.lastname: Li
authors.affiliation: State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China. bqwang@nankai.edu.cn and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China.
authors.forename: Baiquan
authors.initials: B
authors.lastname: Wang