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| 1 | Recent Applications of Homogeneous Catalysis in Electrochemical Organic Synthesis显示文摘Although the combination of electrochemistry and homogeneous catalysis has proven to be a powerful strategy for achieving a diverse array of novel transformations,some challenges such as controlling the diffusion of catalyst-related species and the instability of catalysts at electrodes remain to be overcome.Herein,we review recent advances in electrochemical homogeneous catalysis,focusing on electrochemical noble-transition-metal catalysis,photoelectrochemical catalysis,and electrochemical enantioselective catalysis.The topics discussed include:(1)how the noblemetal catalystworks in the presence of cathodic hydrogen evolution,(2)how the photocatalyst gets enhanced redox property,and(3)how the enantioselectivity is regulated in a catalytic electrochemical reaction. | Xu Cheng Aiwen Lei Tian-Sheng Mei Hai-Chao Xu Kun Xu Chengchu Zeng | 2022 | CCS Chemistry2022，4，4： | 5 |
| 2 | Electrochemical Umpolung Enabled Radical-Radical Cross-Coupling Between Electron-Deficient Methylarenes and Aldehydes显示文摘The electrochemical utilization of electron-deficient methylarenes for radical-radical cross-couplings remains very rare.Enabled by an umpolung strategy,the unprecedented electrochemical cross-coupling of electron-deficient methylarenes with aldehydes was developed.The paired electrolysis simultaneously generated electron-deficient benzylic radicals and ketyl radicals at both electrodes,which then underwent radical recombination,governed by polarity matching and persistent-radical effect(PRE)to afford functionalized alcohols that are not easily accessible by other methods.This protocol features catalystand external redox agent-free conditions and a formal 100%atom economy.Mechanistic studies support the radical-radical cross-coupling pathway. | Fei Lian Kun Xu Chengchu Zeng | 2023 | CCS Chemistry2023，5，9： | 1 |
| 3 | Electrophotocatalytic Si-H Activation Governed by Polarity-Matching Effects显示文摘Trialkylsilanes are important building blocks in organic synthesis;however,their widespread use in redox chemistry is limited by their high oxidation potentials and comparably high bond dissociation energies(BDEs)of Si-H and α-Si-C-H bonds(>92 kcal mol^(−1)).Herein,we report a new strategy for Si-H bond homolysis enabled by the synergistic combination of electrooxidation,photoinduced ligand-to-metal charge transfer(LMCT),and radical-mediated hydrogen atom transfer(HAT).Governed by the polarity-matching effect,the HAT to electrophilic MeO·or[Cl-OHCH_(3)]·from the more hydridic Si-H instead of a C-H bond allows the selective generation of silyl radicals.This electrophotocatalytic protocol provides rapid access to Si-functionalized benzimidazo-fused isoquinolinones with broad functional-group compatibility.Mechanistic studies have shown that n-Bu_(4)NCl is essential to the electrooxidation of CeCl_(3) to form the Ce(Ⅳ)species. | Yangye Jiang Kun Xu Chengchu Zeng | 2022 | CCS Chemistry2022，4，5： | 1 |
| 4 | The synergism of sequential paired electrosynthesis with halogen bonding activation for the cyclization of organochlorides with olefins显示文摘Reported herein is the design of a new catalytic paradigm by synergistically combining sequential paired electrosynthesis with halogen-bonding(XB)activation for the cyclization of organochlorides with olefins.This dual activation strategy enables rapid access to densely functionalized 2-alkylidene-tetrahydrofurans with exclusive Z-selectivities,which are challenging to be synthesized by other methods.4,4′-Di-tert-butyl-2,2′-bipyridine(dtbbpy)showed an unprecedented reactivity as a XB acceptor to activate C-Cl bond by shifting its reduction potential positively by 220 m V.Distinctly different from previous electroreductions of C-Cl bonds relying upon high electrode potentials or matched redox properties between mediators and organochlorides,the XB activator employed herein has no limit on the abovementioned redox property matching but can lower the applied electrode potentials.The decreased operating potential allows broad functional group tolerance,which was highlighted by the late-stage functionalization of 11 examples of drugs and natural products-derived alkenes. | Fei Lian Kun Xu Chengchu Zeng | 2023 | Science China Chemistry2023，66，2： | 1 |
| 5 | Synthesis of new ealixarenes containing nueleoside bases显示文摘 | Zeng Chengchu Zheng Qiyu Tang Yaling | 2003 | Tetrahed- ron2003，59，： | 1 |
| 6 | Electrochemical Atom Transfer Radical Addition of Polychloroalkanes to Olefins Promoted by 4,4-Di-tert-butyl Bipyridine显示文摘A new electrochemical strategy for the atom transfer radical addition(ATRA)of polychloroalkanes across olefins has been realized by the synergism of paired electrolysis and halogen bonding activation.Notably,readily accessible 4,4-di-tert-butyl bipyridine(dtbpy),acting as a halogen bonding acceptor,shifted the reduction potential of C—Cl bonds positively by 110 mV.The decreased operating potential leads to a wide substrate scope and excellent functional group compatibility.A diverse array of terminal and internal alkenes such as(hetero)aryl olefins,unactive aliphatic olefins,and natural products and drugs-derived olefins were well compatible. | Fei Lian Feixian Luo Meng Wang Kun Xu Chengchu Zeng | 2023 | Chinese Journal of Chemistry2023，41，13： | 0 |
| 7 | Electrochemistry Enabling Stereoselective Diamination of Alkenes显示文摘To achieve the stereoselective and regioselective diamination of alkenes,Xu et al.developed an electrochemical protocol for the diamination of aryl alkenes with sulfamides by using triarylamine as a redox mediator.The chemistry proceeded in an undivided cell under constant current conditions,featuring not only wide scope of substrates and reasonable yields,but also excellent diastereoselectivity(>20:1 dr)and regioselectivity.This work has been published in the Nature Communications and can be reached at http://gffzzd3cc09b8251d45dfs5w5ppkn9bxwv6kqo.ffgz.tsg.suse.edu.cn/10.1038/s41467-019-13024-5. | ZENG Chengchu | 2020 | Chemical Research in Chinese Universities2020，36，1： | 0 |
| 8 | Electrochemical radical-polar crossover:a radical approach to polar chemistry显示文摘Radical-polar crossover(RPC) reaction bridges the gap between one-and two-electron reactivities,thus providing an ideal solution to overcome the limitations of both radical and polar chemistry.In this manifold,organic electrochemistry provides a uniquely facile strategy to access a diverse array of radical intermediates,thus broadening the chemical space of the RPC concept.This review highlights the synthetic advances in the field of electrochemical RPC reactions since 2020,with an emphasis on the substrate scope,reaction limitation and mechanistic aspect.The related RPC reactions are categorized as netoxidative,net-reductive,or redox neutral transformations. | Zhoumei Tan Haonan Zhang Kun Xu Chengchu Zeng | 2024 | Science China Chemistry2024，67，2： | 0 |
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