Article
Chemistry, Multidisciplinary
Jana Hatzfeld, Steffen Skowaisa, Elisabeth Jackel, Julia Kaufmann, Edgar Haak
Summary: Various triaminocyclopentadienyl ruthenium complexes were synthesized from Ru-3(CO)(12) and tested for their ability to catalyze cascade conversions of propargyl alcohols. The substrate scope of catalytic cycloadditions was extended to terpenoid-derived propargyl alcohols containing an internal alkyne moiety, resulting in a wide range of cyclic terpenoid and phloroglucinol adducts obtained by complementary application of both types of catalysts.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Niklas F. Both, Anke Spannenberg, Haijun Jiao, Kathrin Junge, Matthias Beller
Summary: The use of bis(NHC) manganese(I) complexes 3 as catalysts for the hydrogenation of esters was investigated. Various aromatic and aliphatic esters were successfully hydrogenated at mild temperatures and low catalyst loadings using complexes 3 with KHBEt3 as additive, highlighting the efficiency of the novel catalytic system. Additionally, the versatility of the developed catalytic system was demonstrated by the hydrogenation of other substrate classes like ketones, nitriles, N-heteroarenes, and alkenes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Inorganic & Nuclear
Sangeeta Kumari, Charu Sharma, Avinash K. Srivastava, Naveen Satrawala, Kamal N. Sharma, Raj K. Joshi
Summary: A Ru(II) complex was synthesized for C-H bond activation alkenylation of arenes using thioether directing groups, achieving high yields under milder conditions compared to previous methods utilizing precious noble metal catalysts. Broad substrate scope was demonstrated with good tolerance towards benzyl thioethers and vinyl, making it the first report of its kind utilizing a Ru-based catalyst for thioether alkenylation.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Jully Patel, Gabriel Bury, Alireza K. Ravari, Roman Ezhov, Yulia Pushkar
Summary: This study investigates the descriptors correlated with catalytic activity through the synthesis and characterization of two catalysts. The results show that the introduction of an ethoxy group can enhance the catalytic activity in chemically driven and photocatalytic water oxidation, and it is related to the configuration of the Ru-oxo unit.
Article
Chemistry, Inorganic & Nuclear
Preeti Devi, Ashwani Kumar, Senthilkumar Muthaiah
Summary: A new ruthenium complex with high catalytic activity for the conversion of amines and alcohols into imines and ketones, respectively, was synthesized. The complex exhibited instability in solution but showed promising potential for application in liquid organic hydrogen storage.
INORGANICA CHIMICA ACTA
(2023)
Article
Chemistry, Multidisciplinary
Dorothee Schindler, Ana-Lucia Meza-Chincha, Maximilian Roth, Frank Wuerthner
Summary: The catalytic activities of di- and tetranuclear Ru(bda) macrocycles in homogeneous water oxidation depend on their size, with the largest tetranuclear catalyst showing the highest efficiency. Turnover frequencies per Ru unit have increased from di- to tetranuclear macrocycles, indicating a clear structure-activity relationship for this novel class of macrocyclic water oxidation catalysts.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Sheida Rajabi, Franziska Ruettger, Jana Luecken, Sebastian Dechert, Michael John, Franc Meyer
Summary: Two mononuclear ruthenium(II) complexes with dianionic {N-4} ligands and axial pyridines were prepared and characterized structurally. The redox properties of the complexes were investigated electrochemically, and their potential as water oxidation catalysts was tested using cerium ammonium nitrate at pH 1.0. Complex 1 underwent degradation, likely due to ligand oxidation, while complex 2 exhibited higher stability and efficiency in water oxidation reactions.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Kaixue Xie, Martin Oestreich
Summary: Readily available cyclohexa-2,5-dien-1-ylcarbonyl chloride derivatives were used as stable HCl surrogates for transfer hydrochlorination of alkenes and alkynes. B(C6F5)(3) facilitated the stepwise fragmentation of acyl chlorides, allowing the addition of HCl across C-C double and triple bonds with Markovnikov selectivity at room temperature.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Organic
Jibin Li, Zheng Liang, Yuzhi Ren, Jian Gao, Ding Du
Summary: A new class of functionalized gem-difluorocyclopropanes bearing acyl groups was synthesized via the N-heterocyclic carbene catalyzed difluorocyclopropanation of alkenes with aldehydes and CF2Br2. This reaction involves a cascade three-component radical relay/intramolecular cyclization process. The protocol features metal- and photocatalyst-free reaction conditions, readily accessible starting materials, good functional group tolerance, and easy scalability. Moreover, this strategy is appealing to pharmaceutical chemistry because it is potentially useful in constructing and modifying bioactive molecules via late-stage functionalization.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Samanta Yadav, Paranthaman Vijayan, Rajeev Gupta
Summary: Recent advances in the coordination and organometallic chemistry of ruthenium have been driven by the development of multidentate ligands containing various functional groups, which play a critical role in controlling the catalytic reactions of ruthenium complexes.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2021)
Review
Chemistry, Applied
Rose Mary Philip, Sankaran Radhika, C. M. Afsina Abdulla, Gopinathan Anilkumar
Summary: Epoxidation of alkenes is an important reaction in organic chemistry with significant potential in producing biochemically relevant compounds. Recent studies have focused on catalytic epoxidation using homogeneous manganese catalysts, particularly with porphyrin, Schiff base, Salen, and other ligands, showing advantages in green chemistry. The use of greener approaches, such as photo-catalysis, has been highlighted in recent reports, aiming to provide researchers with a better understanding of the reaction and catalyst selection.
ADVANCED SYNTHESIS & CATALYSIS
(2021)
Review
Chemistry, Inorganic & Nuclear
Sofia Friaes, Sara Realista, Henrique Mourao, Beatriz Royo
Summary: This article covers the recent progress in the use of N-heterocyclic carbenes (NHCs) in manganese and rhenium catalysis, with a focus on hydrosilylation, hydrogenation, borrowing hydrogen processes, as well as the electrochemical and photochemical reduction of CO2.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Justus Diekamp, Thomas Seidensticker
Summary: The recycling of homogeneous catalysts in a homogeneous matrix is a challenging task for many reactions aiming for industrial applications. Although various synthetic approaches for recyclable homogeneous catalysts exist, a concise overview of catalyst modifications is lacking in the literature. This review aims to fill this gap by summarizing the existing synthesis pathways for polar, non-polar, fluorous, and molecular-weight-enlarged catalysts and examining their modular and late-stage approaches. Additionally, the potential for a generally applicable tag library to facilitate catalyst modifications for specific recycling strategies is explored.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Inorganic & Nuclear
Alok Apan Swatiputra, Debaarjun Mukherjee, Soumitra Dinda, Subhadip Roy, Kausikisankar Pramanik, Sanjib Ganguly
Summary: Ligands with azo functions have the ability to accept electrons upon coordination, exhibiting redox non-innocence. The cooperative involvement of such ligands and coordinated metal centers can modulate the Lewis acidity and binding capacity of the metal center. These complexes have been used as electron transfer catalysts for the sustainable synthesis of various useful chemicals.
DALTON TRANSACTIONS
(2023)
Review
Chemistry, Inorganic & Nuclear
Jean-Francois Longevial, Clemence Rose, Ludivine Poyac, Sebastien Clement, Sebastien Richeter
Summary: This review discusses the importance of porphyrins and N-heterocyclic carbenes in coordination and organometallic chemistry, highlighting their wide applications in metal complexes and catalysis, and specifically describing structural diversity, electronic interplay, and relevant applications in catalysis and biomedicine.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Li-Ping Liu, Qian Li, Song-Po Xiang, Li Liu, Xin-Xin Zhong, Chen Liang, Guang Hua Li, Tasawar Hayat, Njud S. Alharbi, Fa-Bao Li, Nian-Yong Zhu, Wai-Yeung Wong, Hai-Mei Qin, Lei Wang
DALTON TRANSACTIONS
(2018)
Article
Materials Science, Multidisciplinary
Zhengong Meng, Cheuk-Lam Ho, Hon-Fai Wong, Zhen-Qiang Yu, Nianyong Zhu, Guijun Li, Chi-Wah Leung, Wai-Yeung Wong
SCIENCE CHINA-MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
Yujie Dong, Suqian Ma, Xiaoyu Zhang, Jingyu Qian, Nianyong Zhu, Bin Xu, Cheuk-Lam Ho, Wenjing Tian, Wai-Yeung Wong
SCIENCE CHINA-CHEMISTRY
(2019)
Article
Chemistry, Inorganic & Nuclear
Charlotte Po, Chi-Hang Tao, King-Fai Li, Carmen Ka Man Chan, Heidi Li-Ki Fu, Nianyong Zhu, Kok-Wai Cheah, Vivian Wing-Wah Yam
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2019)
Article
Multidisciplinary Sciences
Daniel T. Payne, Whitney A. Webre, Yoshitaka Matsushita, Nianyong Zhu, Zdenek Futera, Jan Labuta, Wipakorn Jevasuwan, Naoki Fukata, John S. Fossey, Francis D'Souza, Katsuhiko Ariga, Wolfgang Schmitt, Jonathan P. Hill
NATURE COMMUNICATIONS
(2019)
Article
Chemistry, Inorganic & Nuclear
Debobroto Sensharma, Nianyong Zhu, Swetanshu Tandon, Sebastien Vaesen, Graeme W. Watson, Wolfgang Schmitt
INORGANIC CHEMISTRY
(2019)
Article
Chemistry, Multidisciplinary
Zhengong Meng, Guijun Li, Sze-Chun Yiu, Nianyong Zhu, Zhen-Qiang Yu, Chi-Wah Leung, Ian Manners, Wai-Yeung Wong
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Chemistry, Inorganic & Nuclear
Ayuk M. Ako, Amal Cherian Kathalikkattil, Rory Elliott, Joaquin Soriano-Lopez, Ian M. McKeogh, Muhammad Zubair, Nianyong Zhu, Max Garcia-Melchor, Paul E. Kruger, Wolfgang Schmitt
INORGANIC CHEMISTRY
(2020)
Article
Biochemistry & Molecular Biology
Rory Elliott, Aoife A. Ryan, Aviral Aggarwal, Nianyong Zhu, Friedrich W. Steuber, Mathias O. Senge, Wolfgang Schmitt
Summary: Metal-organic frameworks (MOFs) are a rapidly expanding class of materials with diverse potential applications, with 'rod MOFs' representing an underexplored subclass. In this study, two new 2D porphyrinic rod MOFs, PROD-1 and PROD-2, were prepared using a Cu-II complex, showcasing promising structural attributes for future photocatalytic investigations.
Article
Chemistry, Multidisciplinary
Ying Zhou, Shuofeng Yuan, Fan Xiao, Hongyan Li, Ziwei Ye, Tianfan Cheng, Cuiting Luo, Kaiming Tang, Jianpiao Cai, Jianwen Situ, Siddharth Sridhar, Wing-Ming Chu, Anthony Raymond Tam, Hin Chu, Chi-Ming Che, Lijian Jin, Ivan Fan-Ngai Hung, Liwei Lu, Jasper Fuk-Woo Chan, Hongzhe Sun
Summary: Understanding how host metal(loid)s regulate immune response is crucial for understanding the mechanism of infectious diseases. This study established a metal-coding system to analyze the links between metallome and COVID-19 pathogenesis and immunity. COVID-19 patients showed distinct metallome features compared to non-infected individuals, which could serve as biomarkers for disease diagnosis. Selenium was found to be strongly associated with interleukin-10 (IL-10), and selenium supplementation enhanced IL-10 expression in B cells while reducing proinflammatory cytokines in B and CD4+ T cells. Additionally, selenium supplementation alleviated lung damage in SARS-CoV-2-infected mice.
Article
Materials Science, Multidisciplinary
Zhao Chen, Songwut Suramitr, Nianyong Zhu, Cheuk-Lam Ho, Supa Hannongbua, Shuming Chen, Wai-Yeung Wong
JOURNAL OF MATERIALS CHEMISTRY C
(2020)
Article
Chemistry, Inorganic & Nuclear
Guanghua Jin, Debobroto Sensharma, Nianyong Zhu, Sebastien Vaesen, Wolfgang Schmitt
DALTON TRANSACTIONS
(2019)
Article
Chemistry, Multidisciplinary
Luana Martins, Lauren K. Macreadie, Debobroto Sensharma, Sebastien Vaesen, Xia Zhang, John J. Gough, Mariah O'Doherty, Nian-Yong Zhu, Manuel Ruether, John E. O'Brien, A. Louise Bradley, Wolfgang Schmitt
CHEMICAL COMMUNICATIONS
(2019)
Article
Chemistry, Organic
Franky Ka-Wah Hau, Kai-Leung Cheung, Nianyong Zhu, Vivian Wing-Wah Yam
ORGANIC CHEMISTRY FRONTIERS
(2019)
Article
Chemistry, Multidisciplinary
Yujie Dong, Jingyu Qian, Yang Liu, Nianyong Zhu, Bin Xu, Cheuk-Lam Ho, Wenjing Tian, Wai-Yeung Wong
NEW JOURNAL OF CHEMISTRY
(2019)
