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Wang, Xuesong; Huang, Dayun; Wang, Xingyong; Zeng, Xiaobao; Wang, Xinyan; Hu, Yuefei . (2016). Copper(II) triflate-catalyzed direct arylation for synthesis of biphenyls using diaryliodonium salts as arylating reagents. Tetrahedron Letters, 57(37), 4235–4238. doi:10.1016/j.tetlet.2016.08.027 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research