71131-72-1Relevant articles and documents
Palladium-Catalyzed Annulation of Internal Alkynes: Direct Access to π-Conjugated Ullazines
Wan, Danyang,Li, Xiaoyu,Jiang, Ruyong,Feng, Boya,Lan, Jingbo,Wang, Ruilin,You, Jingsong
supporting information, p. 2876 - 2879 (2016/07/06)
A palladium-catalyzed cyclization reaction of 1-(2,6-dibromophenyl)-1H-pyrroles with alkynes has been developed to construct various π-conjugated indolizino[6,5,4,3-ija]quinolones (ullazines) with a reactive functional group tolerance. As illustrative examples, three new ullazine-based sensitizers are synthesized, and the performance of these dyes is examined in DSSC devices, which demonstrates the potential of direct C-H functionalization in the construction of organic optoelectronic materials.