描述了多环 N-稠合杂芳烃的模块化方法。各种 1-(2-oxo-2-arylethyl)-1 H -pyrrole-2-carbaldehydes 与几种邻苯二胺的酸催化反应为获得许多新的苯并[ d ]咪唑-吡咯并[1,2]提供了便利- a ]吡嗪杂化结构通过双环脱水和芳构化。合成化合物的光学表征揭示了独特的发射特性,在聚集态和固态下具有深蓝色发射,并观察到显着的取代基效应。一个额外的苯环融合到苯并[4,5]咪唑并[1,2- a ]吡咯并[2,1- c ]]吡嗪支架导致溶液中蓝色荧光强度显着增加,同时具有良好的细胞渗透性和可忽略不计的光毒性,表明其在生物成像应用中的潜力。
A novel route to synthesize the biologically active benzimidazolopyrazine core is outlined. The reaction proceeds via tandem benzimidazole formation/annulations of indole, pyrrole and aliphatic δ-alkynyl aldehydes in the presence of copper salts and green solvents with moderate to good yields.
Facile approach to benzo[<i>d</i>]imidazole-pyrrolo[1,2-<i>a</i>]pyrazine hybrid structures through double cyclodehydration and aromatization and their unique optical properties with blue emission
作者:Gi Hun Bae、Suzi Kim、Na Keum Lee、Anuradha Dagar、Jeong Hwa Lee、Jeeyeon Lee、Ikyon Kim
DOI:10.1039/d0ra01140a
日期:——
lo[1,2-a]pyrazine hybrid structures through double cyclodehydration and aromatization. Optical characterization of the synthesized compounds revealed unique emission properties, with deep blue emission in the aggregated and solid states, and a dramatic substituent effect was observed. Fusion of an additional benzene ring into the benzo[4,5]imidazo[1,2-a]pyrrolo[2,1-c]pyrazine scaffold resulted in a
描述了多环 N-稠合杂芳烃的模块化方法。各种 1-(2-oxo-2-arylethyl)-1 H -pyrrole-2-carbaldehydes 与几种邻苯二胺的酸催化反应为获得许多新的苯并[ d ]咪唑-吡咯并[1,2]提供了便利- a ]吡嗪杂化结构通过双环脱水和芳构化。合成化合物的光学表征揭示了独特的发射特性,在聚集态和固态下具有深蓝色发射,并观察到显着的取代基效应。一个额外的苯环融合到苯并[4,5]咪唑并[1,2- a ]吡咯并[2,1- c ]]吡嗪支架导致溶液中蓝色荧光强度显着增加,同时具有良好的细胞渗透性和可忽略不计的光毒性,表明其在生物成像应用中的潜力。