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A Cascade Cross-Coupling Hydrogen Evolution Reaction by Visible Light Catalysis
- Meng, Qing-Yuan, Zhong, Jian-Ji, Liu, Qiang, Gao, Xue-Wang, Zhang, Hui-Hui, Lei, Tao, Li, Zhi-Jun, Feng, Ke, Chen, Bin, Tung, Chen-Ho, Wu, Li-Zhu
- Journal of the American Chemical Society 2013 v.135 no.51 pp. 19052-19055
- ambient temperature, catalysts, catalytic activity, chemical bonding, hydrogen, hydrogen production, irradiation, nanocomposites, oxidants, photosensitizing agents
- Cross-dehydrogenative-coupling reaction has long been recognized as a powerful tool to form a C–C bond directly from two different C–H bonds. Most current processes are performed by making use of stoichiometric amounts of oxidizing agents. We describe here a new type of reaction, namely cross-coupling hydrogen evolution (CCHE), with no use of any sacrificial oxidants, and only hydrogen (H₂) is generated as a side product. By combining eosin Y and a graphene-supported RuO₂ nanocomposite (G-RuO₂) as a photosensitizer and a catalyst, the desired cross-coupling products and H₂ are achieved in quantitative yields under visible light irradiation at room temperature.