Article
Chemistry, Organic
Wenzhang Xiong, Yichun Wang, Xiaobo Yang, Wenbo H. Liu
Summary: By utilizing a photoresponsive auxiliary o-nitroanilide, a mild two-step protocol for the hydrolysis of primary and secondary amides has been developed. This protocol, driven by visible light irradiation at room temperature under neutral conditions, tolerates numerous acid-and base-sensitive functional groups. Various drugs, natural product-, and amino acid-derived amides can be selectively hydrolyzed.
Article
Chemistry, Physical
Yuan-Sheng Cheng, Zhi-Yuan Xing, Xu Zheng, Xu-Dong Xu, Yan-Shang Kang, Delei Yu, Kong-Lin Wu, Fang-Hui Wu, Guozan Yuan, Xian-Wen Wei
Summary: The development of high-activity photocatalysts for the large-scale industrial application of photocatalytic selective conversion of biomass alcohols into value-added chemicals and H2 evolution in aqueous solution is still a challenge. In this study, ReS2 was used as a high-efficiency co-catalyst to modify flower-like ZnIn2S4 microspheres, resulting in significant enhancements in the photocatalytic oxidation of furfural alcohols combined with H2 evolution. The optimal catalyst, RZIS-3, containing 4.08 wt% ReS2, achieved remarkably high generation rates of H2 and furfural at 3092.9 and 2981.1 mmol g-1 h-1, respectively, nearly 12 times faster than blank ZnIn2S4. Mechanism studies confirmed that the migration of photogenerated carriers from ZnIn2S4 to ReS2 was responsible for the enhanced photoactivity of the composite. Furthermore, the composite showed high performance in the oxidation of other alcohol biomass intermediates, providing valuable insights for the design and fabrication of novel photocatalytic hydrogen evolution systems.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Environmental
Fu Zhang, Jihua Zhang, Haifei Wang, Jianming Li, Huanhuan Liu, Xu Jin, Xiaoqi Wang, Genqiang Zhang
Summary: In this study, a novel photocatalytic hydrogen evolution catalyst WSA-CN-PUNS was reported with high activity. Coupling with benzyl alcohol oxidation can further enhance the hydrogen production efficiency.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Xiang-Jun Peng, Hai-Ping He, Qian Liu, Kun She, Bao-Qi Zhang, Heng-Shan Wang, Hai-Tao Tang, Ying-Ming Pan
Summary: This study presents two methods for the selective oxidation of pyridiniums, one utilizing photocatalysis and the other visible light induction. The transformations involve oxygen-mediated cycloaddition, PCET, pyridine ring opening, and recyclization to convert pyridiniums to pyrroles, and free radical rearrangement/aerobic oxidation catalyzed by cobalt (II) for the selective formation of 4-carbonyl pyridines.
SCIENCE CHINA-CHEMISTRY
(2021)
Review
Chemistry, Multidisciplinary
Weisi Guo, Qian Wang, Jieping Zhu
Summary: This tutorial review summarizes the recent progress in remote functionalization of C-H bonds, with a focus on photoredox-catalyzed remote C-H functionalization.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Chemistry, Organic
Suk Hyun Lim, Hannara Jang, Min-Ji Kim, Kyung-Ryang Wee, Dong Hyun Lim, Young-Il Kim, Dae Won Cho
Summary: This study investigated a novel photocatalyst for promoting photodegradation reactions of lignin model compounds, achieving efficient lignin fragmentation through selective cleavage of the C-alpha-C-beta bond. The key to success lies in the presence of the C-alpha-hydroxyl moiety in lignin model compounds.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Organic
Suk Hyun Lim, Hannara Jang, Min-Ji Kim, Kyung-Ryang Wee, Dong Hyun Lim, Young-Il Kim, Dae Won Cho
Summary: This study explores the use of visible-light and amine-functionalized fullerene photocatalysts for efficient delignification of lignocellulosic biomass. The results show that this method can lead to more efficient lignin fragmentation through selective bond cleavage, with the hydroxyl moiety playing a significant role.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Engineering, Environmental
Kai Wang, Lisha Jiang, Tianjiao Xin, Yuan Li, Xiaoyong Wu, Gaoke Zhang
Summary: By designing coordinating single-atomic-site V on ultrathin carbon nitride with V-N charge-transfer bridge, high efficient photocatalytic H2 production and formaldehyde oxidation under visible light were achieved. This design significantly improves photocatalytic efficiency and outperforms other carbon nitride-based photocatalysts.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Chengcheng Zhang, Yingkui Yan, Hubiao Huang, Xinsheng Peng, Hui Song, Jinhua Ye, Li Shi
Summary: Fe@PCN-222 is an efficient and selective photocatalyst that can oxidize CH4 to liquid oxygenates at room temperature using visible light. The presence of Fe single-atoms promotes the transfer of photogenerated electrons and activates H2O2, resulting in a substantial improvement in the selectivity and activity of liquid oxygenate production.
Article
Chemistry, Physical
Shuai Wei, Hongxiao Zhong, Hongtao Wang, Yujie Song, Chunman Jia, Masakazu Anpo, Ling Wu
Summary: Two atomic layered BiOCl nanosheets with rich oxygen vacancies were constructed via surface Pd deposition, exhibiting high photocatalytic activity and selectivity. The ultrathin structure of the nanosheets induces the formation of surface oxygen vacancies, resulting in increased visible light absorption. In-situ experiments revealed that the oxygen vacancy sites contribute to the conversion of O-2 molecules from air to the surface. Furthermore, low-coordinated Bi and Pd sites play crucial roles in the formation of active species.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Bingfeng Li, Jiahui Hong, Yuejie Ai, Yezi Hu, Zewen Shen, Shaojun Li, Yingtong Zou, Sai Zhang, Xiangke Wang, Guixia Zhao, Xiaoxiang Xu
Summary: Cu-doped SrTiO3 exhibits strong absorption of visible and near-infrared light, enabling efficient oxidation of benzyl alcohol to benzyl aldehyde with high selectivity. The introduction of Cu dopants leads to an increase in oxygen vacancies and interband transitions, extending the light response range of SrTiO3 and enhancing charge carrier separation efficiency.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Nazanin Mosleh, Majid Masteri-Farahani
Summary: Efficient visible-light photoelectrocatalysts were developed for mild oxidation of benzyl alcohol to aldehydes, utilizing nanocomposite structures to enhance charge separation and catalytic performance. Comparison with photocatalytic and catalytic tests revealed improved performance with the use of a small bias.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Chemistry, Multidisciplinary
Theodora W. von Zuben, Guilherme Cariello Silva, Airton G. Salles Jr
Summary: A visible light-driven metal-free route has been developed to access highly substituted pyrroles using benzophenone as a photocatalyst under solvent-free conditions. The photoinduced C-H functionalisation adds structural variety and complexity to the final products, demonstrating the potential of this transformation.
Article
Chemistry, Multidisciplinary
Amreen K. Bains, Yadav Ankit, Debashis Adhikari
Summary: This study reports a redox-active iminoquinone motif connected with a pi-delocalized pyrene core, capable of efficiently performing two-electron oxidation of a class of substrates. Inspired by the organic redox cofactor topaquinone (TPQ) in the enzyme copper amine oxidase, the molecule can easily oxidize primary and secondary alcohols in the presence of catalytic KOtBu. Under photoinduced conditions, the ligand backbone can be reduced to its iminosemiquinonate form, allowing for multi-component, one-pot coupling for the synthesis of quinoline and pyrimidine.
Article
Chemistry, Applied
adam Mark Palvoelgyi, Fabian Scharinger, Thomas Bauhoff, Katharina Bica-Schroeder
Summary: A visible light-mediated approach for radical hydrocarboxylation of vinylsulfone derivatives is reported. Vinylsulfone substrates can be efficiently hydrocarboxylated in aqueous medium using cheap and accessible sodium formate as a C1 source and K2S2O8 as a reagent, without any additional catalyst or reagent. Control experiments demonstrate that the reaction proceeds via a radical mechanism, supported by the working model of K2S2O8-initiated in situ formation of CO2 radical anion.
ADVANCED SYNTHESIS & CATALYSIS
(2023)
Article
Chemistry, Organic
Zhenzhen Lai, Zhenxing Li, Yawei Liu, Pengkun Yang, Xiaomin Fang, Wenkai Zhang, Baoying Liu, Haibo Chang, Hao Xu, Yuanqing Xu
JOURNAL OF ORGANIC CHEMISTRY
(2018)
Article
Chemistry, Organic
Ling Chai, Zhenzhen Lai, Qiangqiang Xia, Jiangpei Yuan, Qilong Bian, Mingjian Yu, Wenkai Zhang, Yuanqing Xu, Hao Xu
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2018)
Editorial Material
Chemistry, Multidisciplinary
Miao Tian, Shuyang Liu, Xiubin Bu, Jipan Yu, Xiaobo Yang
CHEMISTRY-A EUROPEAN JOURNAL
(2020)
Article
Chemistry, Organic
Qilong Bian, Cunluo Wu, Jiangpei Yuan, Zuodong Shi, Tao Ding, Yongwei Huang, Hao Xu, Yuanqing Xu
JOURNAL OF ORGANIC CHEMISTRY
(2020)
Article
Chemistry, Physical
Futao He, Jing Bai, Yanyan Cheng, Kaushalya Weerasinghe, Xianrui Meng, Hao Xu, Wenkai Zhang, Xiaomin Fang, Hai-Bei Li, Tao Ding
Summary: The study synthesized a novel type of carbon dots via an ethanothermal reaction, obtaining molecular fluorophores and carbogenic nanodots through separation and dialysis. Detailed nuclear magnetic resonance studies revealed the chemical structure of the components and compared their optical behaviors systematically.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Cunluo Wu, Qilong Bian, Tao Ding, Mingming Tang, Wenkai Zhang, Yuanqing Xu, Baoying Liu, Hao Xu, Hai-Bei Li, Hua Fu
Summary: A photoinduced iron-catalyzed ipso-nitration of aryl halides with KNO2 has been developed, and the mechanism investigations show the reaction undergoes a photoinduced single-electron transfer process. This work represents an example for the photoinduced iron-catalyzed Ullmann-type couplings.
Article
Chemistry, Multidisciplinary
Yue Cui, Siyu Li, Hesheng Wang, Jing Zeng, Yichen Wang, Xiubin Bu, Xiaobo Yang, Zhen Zhao
Summary: In this study, a regioselective Rh(III)-catalyzed strategy was developed for C-H bond naphthylation using aryl imidates and oxa bicyclic alkenes, resulting in the synthesis of diverse naphthalene-substituted aromatic esters. The possibility of further functionalization and derivatization of C-H bonds is achieved through the cascade directing group transformation into ester.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Organic
Hua-Dong He, Zhi-Kai Zhang, Hao-Bo Tang, Yuan-Qing Xu, Xiao-Bo Xu, Zhong-Yan Cao, Hao Xu, Yang Li
Summary: A practical method for the synthesis of N,N-dialkyl anilines via reductive dialkylation has been developed using inexpensive substrates and cheap NiI2 as the key promoter. This method demonstrates high functional group tolerance and can be used for the synthesis and modification of drugs or pesticides.
ORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Jingwen Jia, Xiubin Bu, Xiaobo Yang
Summary: The merger of transition-metal catalysis and photoredox catalysis has achieved a balance between chemical transformation and the rational use of light energy. A dual-functional cobalt covalent organic framework (CoCOF-SYNU-1) was synthesized for visible-light-driven C-H annulation of amides with alkynes. The reaction showed excellent catalyst recyclability and practicability.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Futao He, Hai-Bei Li, Hao Xu, Jing Bai, Yanyan Cheng, Xianrui Meng, Wenkai Zhang, Xiaomin Fang, Yuanqing Xu, Tao Ding
Summary: Fluorophores and hydrogen bonding interactions contribute to the fluorescence properties of bottom-up carbon dots. This study extracted an excited-state intramolecular proton-transfer (ESIPT) active fluorophore and a non-ESIPT fluorophore from 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) based carbon dots, highlighting the impact of ESIPT fluorophore on fluorescence characteristics under different conditions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
Jiangpei Yuan, Qiangqiang Xia, Weiwei Zhu, Cunluo Wu, Bingxin Wang, Baoying Liu, Xiaobo Yang, Yuanqing Xu, Hao Xu
Article
Chemistry, Multidisciplinary
Shuyang Liu, Wenna Pan, Songxiao Wu, Xiubin Bu, Shigang Xin, Jipan Yu, Hao Xu, Xiaobo Yang
