#CS_coupling has been applied in a plethora of organic transformations. Using a #dual_catalysis approach employing #nickel and #IrdFCF3ppy2dtbbpyPF6, C-S cross coupling was achieved. The organic #PhenO_1Naph_Biph PC was shown successful in replacing the Ir PC for the same application. Notably, 10 times less catalyst loading of the organic PC (0.2 mol%) was used compared to the Ir PC in the seminal report. Also, the more challenging aryl bromides were used as opposed to aryl iodides in the earlier report.
Du, Y.; Pearson, R. M.; Lim, C.-H.; Sartor, S. M.; Ryan, M. D.; Yang, H.; Damrauer, N. H.; Miyake, G. M., Strongly Reducing, Visible-Light Organic Photoredox Catalysts as Sustainable Alternatives to Precious Metals. Chem. Eur. J. 2017, 23, 10962. Link
Papers related to C-S cross-coupling:
Oderinde, M. S.; Frenette, M.; Robbins, D. W.; Aquila, B.; Johannes, J. W., Photoredox Mediated Nickel Catalyzed Cross-Coupling of Thiols With Aryl and Heteroaryl Iodides via Thiyl Radicals. J. Am. Chem. So.c 2016, 138, 1760.