title: A cascade cross-coupling hydrogen evolution reaction by visible light catalysis.
abstract: 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.
authors.affiliation: Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, Chinese Academy of Sciences , Beijing 100190, PR China.
authors.forename: Qing-Yuan
authors.initials: QY
authors.lastname: Meng
authors.forename: Jian-Ji
authors.initials: JJ
authors.lastname: Zhong
authors.forename: Qiang
authors.initials: Q
authors.lastname: Liu
authors.forename: Xue-Wang
authors.initials: XW
authors.lastname: Gao
authors.forename: Hui-Hui
authors.initials: HH
authors.lastname: Zhang
authors.forename: Tao
authors.initials: T
authors.lastname: Lei
authors.forename: Zhi-Jun
authors.initials: ZJ
authors.lastname: Li
authors.forename: Ke
authors.initials: K
authors.lastname: Feng
authors.forename: Bin
authors.initials: B
authors.lastname: Chen
authors.forename: Chen-Ho
authors.initials: CH
authors.lastname: Tung
authors.forename: Li-Zhu
authors.initials: LZ
authors.lastname: Wu