Palladium-Catalyzed Annulation of Internal Alkynes: Direct Access to π-Conjugated Ullazines
2016
Wan, Danyang | Li, Xiaoyu | Jiang, Ruyong | Feng, Boya | Lan, Jingbo | Wang, Ruilin | You, Jingsong
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.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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