Article
Chemistry, Physical
Ting-Ting Zhu, Yu-Tong Tao, Yue Sun, Xue Wang, Xiao-Wen Zhang, Jia-Lu Chai, Jie Han, Xiao-Li Zhao, Xu-Dong Chen
Summary: Four isostructural lanthanide coordination complexes based on 3,7-diamino-9,10-anthraquinone-2,6-disulfonate have been synthesized and shown to exhibit excellent catalytic activity and recyclability. These complexes represent a promising category of heterogeneous photocatalysts for promoting organic transformations efficiently under visible light irradiation.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Applied
Anderson J. Bonon, Juliana O. Bahu, Bruno C. Klein, Dalmo Mandelli, Rubens Maciel Filho
Summary: The green catalytic system used in the oxidation of (R)-limonene offers advantages such as low cost, toxicity-free reagents, and water as the only by-product. Through experimental design and analysis, the system was optimized for high efficiency in producing limonene diepoxide. Various analytical techniques confirmed the synthesized and purified product's structure.
Review
Biochemistry & Molecular Biology
Jose Ferraz-Caetano, Filipe Teixeira, Maria Natalia Dias Soeiro Cordeiro
Summary: This review provides an update on the major works of tunable vanadium-catalyzed epoxidations, focusing on sustainable optimization routes. It discusses the current mechanistic view on vanadium catalysts for small alkenes and allylic alcohols' epoxidation and highlights the key challenges in green process development, emphasizing the value of updated kinetic and mechanistic studies, along with essential computational studies.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Chae Gyu Lee, Chaiheon Lee, Joonhee Lee, Jung Seung Nam, Byeong-Su Kim, Tae-Hyuk Kwon
Summary: This study investigates the irreversible degradation of an Ir-based photosensitizer encapsulated in nanogels through the oxidation of intracellular thiols using reactive oxygen species. The photosensitizer is stably encapsulated through hydrophobic interactions, providing high biocompatibility under normal cellular conditions. Upon photoirradiation, the photosensitizer generates high levels of reactive oxygen species, irreversibly oxidizing the thiols and inducing cancer cell apoptosis.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Applied
Yukari Yamazaki, Jan Prech, Yasutaka Kuwahara, Kohsuke Mori, Jirf Cejka, Hiromi Yamashita
Summary: By conducting experiments, it was found that four types of microporous titanosilicates exhibit different catalytic activities in the epoxidation process. Ti-MCM-22 showed the highest activity in epoxidation with H2O2 due to its wide interlayer space, while Ti-UTL exhibited the highest activity in photocatalytic epoxidation with O2, possibly influenced by the incorporated germanium atoms.
Article
Chemistry, Inorganic & Nuclear
Aryan Houshmand, Devon Heroux, Dennis Y. Liu, Wen Zhou, Roger G. Linington, Marcel Bally, Jeffrey J. Warren, Charles J. Walsby
Summary: This study investigates the synthesis of novel organic compounds by appending ferrocene to coumarin and anthraquinone. The resulting compounds exhibit cytotoxicity through the generation of toxic reactive oxygen species. The compounds show significant increase in ROS and cytotoxicity in breast cancer cells, but no antibacterial activity.
DALTON TRANSACTIONS
(2022)
Article
Biochemistry & Molecular Biology
Gabriela A. Correa, Susana L. H. Rebelo, Baltazar de Castro
Summary: Sustainable functionalization of renewable aromatics is crucial for the transition to a circular, fossil-free economy. In this study, typical stable aromatic compounds were successfully functionalized using a green catalytic system at room temperature. The results demonstrated unusual initial epoxidation of the aromatic ring, with high yields obtained for various products.
Article
Engineering, Electrical & Electronic
Lan Wang
Summary: This study proposes a method of energy conservation optimization and numerical simulation of urban green space landscape pattern to alleviate the urban heat island effect and improve the atmospheric environment. The results show that the optimal spatial layout of urban green spaces can effectively reduce temperature, promote the diffusion of pollutants, and create urban ventilation corridors.
INTERNATIONAL TRANSACTIONS ON ELECTRICAL ENERGY SYSTEMS
(2022)
Article
Energy & Fuels
Qiuchen Wang, Xiaoxu Deng, Wenguang Chen, Peng Chen, Fei Liu, Shuang-Feng Yin
Summary: A novel bismuth complex-based metallopolymer (BiTMT) was prepared by a wet-chemical method and demonstrated excellent stability and conversion efficiency in the selective oxidation of organic compounds using air as the oxidant under visible light irradiation, opening up a new avenue for photocatalytic selective oxidation and other applications.
Article
Chemistry, Physical
Xia Li, Huimin Hao, Xianjun Lang
Summary: Through molecular inverse design, researchers have revealed the underlying mechanism of the superior photocatalytic activity of alizarin red S-TiO2 assembly, showing that the substituted -OH groups provide visible light absorption and binding sites, 1,2-DHA plays a major role in photocatalytic activity, and the -SO3 Na+ groups increase the binding strength. The study indicates that this dye-semiconductor assembly can be used for green light-induced selective oxidation reactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Alexander K. Mengele, Dominik Weixler, Avinash Chettri, Maite Maurer, Fabian Lukas Huber, Gerd M. Seibold, Benjamin Dietzek, Bernhard J. Eikmanns, Sven Rau
Summary: The research revealed that ligand design can control the mechanism of photooxidation. One of the Ru(II) complexes, Rudppz, enabled efficient turnover through supramolecular binding to facilitate cofactor oxidation, allowing repetitive conversion of naturally occurring nicotinamides by recognizing the redox state of the cofactor.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Xue Dong, Zhipeng Wang, Qiang Yan, Jing Chen, Xiaogui Feng, Chao Xu
Summary: The study introduces a light-driven oxidation approach that can effectively oxidize plutonium (IV) to different oxidation states without the addition of extra chemical oxidants, contributing to efficient recovery of plutonium in nuclear wastes and green stripping of plutonium from an organic solvent.
CHINESE JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Chun Gui, Edward Kalkreuter, Yu-Chen Liu, Ajeeth Adhikari, Christiana N. Teijaro, Dong Yang, Changsoo Chang, Ben Shen
Summary: This study investigates the biosynthetic mechanism of anthraquinone-fused enediynes. By identifying and characterizing the enzyme TnmK1, it reveals a new way of forming chemical bonds in these molecules. Additionally, an intermediate with potential anti-cancer activity was discovered. These findings are important for enzymology, natural product biosynthesis, and drug development.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Philipp W. Kamm, James P. Blinco, Andreas-Neil Unterreiner, Christopher Barner-Kowollik
Summary: This study presents a red-shifted tetrazole that can efficiently undergo nitrile imine-mediated tetrazole-ene cycloaddition under blue and green light irradiation. The research provides a detailed wavelength-dependent reactivity map and uses various LEDs for high-conversion modification of small molecules and polymers.
CHEMICAL COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Ning Xu, Li Shi, Xudong Pei, Weiyang Zhang, Jian Chen, Zheng Han, Paolo Samori, Jinlan Wang, Peng Wang, Yi Shi, Songlin Li
Summary: In this study, the authors conducted a multiparametric survey on the kinetics of lateral photooxidation in WS2 and MoS2 monolayers, and discovered an unusual non-Marcusian charge transfer mechanism in these low-dimensional systems. They also proposed a scenario of band bending to explain the discrepancy in reaction barriers. These results provide important insights into the fundamental electrochemical reaction theory in low-dimensional systems.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Organic
Masaharu Yudasaka, Toshifumi Maruyama, Eiji Yamaguchi, Norihiro Tada, Akichika Itoh
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2018)
Article
Chemistry, Multidisciplinary
Masato Deguchi, Akitoshi Fujiya, Eiji Yamaguchi, Norihiro Tada, Bunji Uno, Akichika Itoh
Article
Chemistry, Organic
Akitoshi Fujiya, Eiji Yamaguchi, Norihiro Tada, Akichika Itoh
ASIAN JOURNAL OF ORGANIC CHEMISTRY
(2018)
Article
Chemistry, Organic
Kaoru Usami, Eiji Yamaguchi, Norihiro Tada, Akichika Itoh
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2020)
Article
Chemistry, Organic
Mitsumi Takeda, Saki Maejima, Eiji Yamaguchi, Akichika Itoh
TETRAHEDRON LETTERS
(2019)
Article
Biochemistry & Molecular Biology
Eiji Yamaguchi, Hisamori Inagawa, Akichika Itoh
Summary: Carbenes are important intermediates for synthesizing complex molecules and play a crucial role in drug discovery chemistry. This paper presents a novel photochemical method using C,Se-selenonium ylide for generating carbenes, which is catalyst-free, simple, and enables efficient cyclopropanation reactions with alkenes.
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Ryohei Kawakami, Suguru Usui, Norihiro Tada, Akichika Itoh
Summary: A late-stage diversification strategy for synthesizing ynamides with various substituents, including pyrene, amino acid, nucleoside, and N-acetylglucosamine, has been developed. This strategy involves the copper-catalyzed direct electrophilic diynylation of sulfonamides with a novel triisopropylsilyl diynyl benziodoxolone, deprotection, and the late-stage chemoselective copper-catalyzed azide-alkyne cycloaddition sequence.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Akichika Itoh, Tomoka Tanemura, Norihiro Tada, Eiji Yamaguchi
Summary: We developed a continuous, integrated production system that achieved a production efficiency of 47 mg h(-1) for pure ibuprofen at 38% yield across all reaction processes.
REACTION CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Organic
Daisuke Shimbo, Toshifumi Maruyama, Norihiro Tada, Akichika Itoh
Summary: This study reports the stereoselective synthesis of cis-beta-N-alkoxyamidevinyl benziodoxolones from O-alkyl hydroxamic acids in the presence of EBX-MeCN under mild conditions. The reaction tolerated various O-alkyl hydroxamic acids derived from carboxylic acids and successfully synthesized vinyl dideuterated cis-beta-N-MeO-amide-VBXs as well.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Eiji Yamaguchi, Nao Taguchi, Akichika Itoh
REACTION CHEMISTRY & ENGINEERING
(2019)
Article
Chemistry, Organic
Geeta Devi Yadav, Pooja Chaudhary, Balaram Pani, Surendra Singh
Summary: Chiral transition metal complexes with privileged ligands are efficient catalysts for various asymmetric organic transformations. Transition metal complexes of C1-symmetric pyrrolidine-based ligands have been widely used in asymmetric organic reactions. However, a comprehensive review article on the transition metal complexes of chiral C1-symmetric pyrrolidine-based ligands derived from (L)-proline has not been published.
TETRAHEDRON LETTERS
(2024)
