We report ruthenium(II)-catalyzed sequential C–H/N–H alkenylation cascade of phenanthroimidazole and alkenes to form novel phenanthroimidazoisoindol acrylates via dual C–H activation and aza-Michael reaction. The two nitrogen atoms of the imidazole ring act as directing groups for regioselective dual sequential ortho C–H activation. These polycyclic N-heterocycles were evaluated for their photophysical properties.

中文翻译：

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钌(II)催化的菲咪唑连续C-H/N-H烯烃成环级联：合成和光物理研究

我们报道了钌(II)催化的菲并咪唑和烯烃的连续C–H/N–H烯基化级联，通过双C–H活化和氮杂迈克尔反应形成新型菲并咪唑异吲哚丙烯酸酯。咪唑环的两个氮原子充当区域选择性双连续邻位C-H 激活的导向基团。评估了这些多环N-杂环的光物理性质。