Article
Chemistry, Multidisciplinary
Xuelun Duan, Nan Zheng, Ming Li, Xinhao Sun, Zhuye Lin, Pan Qiu, Wangze Song
Summary: Remote ether groups can be utilized as directing groups to achieve exclusive 1,5-regioselectivities and excellent chemoselectivities in the synthesis of fully substituted 5-ether-1,2,3-triazoles. Coordination of ether group with iridium catalyst enables control of regioselectivity through weak coordination effect. The chemoselective cycloaddition reaction occurs at the propargyl ether moiety of diyne, yielding unique fully substituted 4-alkynyl-triazole.
CHINESE CHEMICAL LETTERS
(2021)
Article
Biochemistry & Molecular Biology
Laura Morelli, Federica Compostella, Luigi Panza, Daniela Imperio
Summary: This review discusses the essential role of glycosylation in producing and modifying carbohydrates, as well as the recent advances in studying new promoters and leaving groups in glycosylation reactions.
CARBOHYDRATE RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Ze-Xin Zhang, Michael C. Willis
Summary: Sulfonamides, with their unique structure and properties, play a significant role in designing bioactive molecules. Mono aza variants, sulfonimidamides, and double aza analogs, sulfondiimidamides, are two functional groups. However, the synthesis of sulfondiimidamides is challenging, and their assembly and modification can be achieved through specific methods.
Article
Environmental Sciences
Sirajum Munira, James J. Dynes, Mofizul Islam, Fahad Khan, Theresa Adesanya, Tom Z. Regier, Kurt A. Spokas, Annemieke Farenhorst
Summary: Solid-state C-13 Nuclear Magnetic Resonance (NMR) and synchrotron-based X-ray Absorption Near-Edge Structure (XANES) have applications for determining the relative proportions of organic C functional groups in materials. NMR had a better ability than XANES to differentiate % aromatic C across biochars, but the associations between NMR and XANES varied for different organic C functional groups.
Article
Chemistry, Inorganic & Nuclear
Guodong Fu, Ping Wu, Jinguang Yang, Shiping Zhang, Li Wang, Min Xu, Xiulan Huai
Summary: The addition of p-nitrobenzoic acid and p-hydroxybenzoic acid as modulators effectively improves the porosity and adsorption performance of UiO-66. These samples exhibit good crystallinity and thermal stability, and show potential applications in adsorption heat transformation.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Katja Reinhardt, Sebastian Koller, Philippe Klein, Corvin Lossin, Julia Gatzka, Philipp J. Altmann, Alexander Poethig, Lukas Hintermann
Summary: The study focuses on the attachment of di(1R)-menthylphosphino fragments to molecular scaffolds to create homochiral, bulky phosphine ligands for potential applications in coordination chemistry and transition-metal catalysis. Various transformations and reactions involving dimenthylphosphine P-oxide are explored, leading to the synthesis of new ligands and complexes with specific reactivity profiles due to the presence of menthyl groups. This approach shows promise for use in model palladium-catalyzed coupling reactions, with ligand 22 exhibiting high enantioselectivity in a specific biaryl-forming reaction.
Review
Chemistry, Inorganic & Nuclear
Kamil Bugaj, Patrycja Pokora-Sobczak, Grazyna Mielniczak, Luca Sancineto, Claudio Santi, Jozef Drabowicz
Summary: This paper presents the use of ball milling in organic synthesis, focusing on the formation and transformation of sulfur-containing functional groups. The results of sulfenylation reactions, coupling reactions, redox reactions, and condensation reactions under mechanochemical conditions are summarized. This review aims to provide a useful addition to the existing literature on mechanochemistry and attract more researchers' attention to the attractive features of mechanochemical protocols.
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS
(2023)
Article
Environmental Sciences
Eleanor R. Thomson, Marcus P. Spiegel, Inge H. J. Althuizen, Polly Bass, Shuli Chen, Adam Chmurzynski, Aud H. Halbritter, Jonathan J. Henn, Ingibjorg S. Jonsdottir, Kari Klanderud, Yaoqi Li, Brian S. Maitner, Sean T. Michaletz, Pekka Niittynen, Ruben E. Roos, Richard J. Telford, Brian J. Enquist, Vigdis Vandvik, Marc Macias-Fauria, Yadvinder Malhi
Summary: The study utilized UAV technology and ground-based spectroscopy data to investigate Arctic vegetation species and chemical elements, demonstrating the effectiveness of both methods in plant species identification and chemical element inference. Terrain characteristics have a significant impact on the distribution of vegetation in the region.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Stephan Reichl, Felix Riedlberger, Martin Piesch, Gabor Balazs, Michael Seidl, Manfred Scheer
Summary: By performing salt metathesis reactions, a variety of organo-substituted polyphosphorus ligand complexes [Cp*Fe(eta(4)-P5RRFG)] (2) can be obtained through the reaction of anionic complexes [Cp*Fe(eta(4)-P5R)](-) with organic electrophiles. Different functional groups can be introduced through this reaction. The reaction of dianionic species [K(dme)(2)](2)[Cp*Fe(eta(4)-P-5)] with bromo-nitriles allows the introduction of two functional groups attached to one phosphorus atom, and the self-assembly reaction between the resulting compound and ZnBr2 forms a supramolecular compound.
Article
Chemistry, Physical
Se-Phin Cho, Hyun-Jung Lee, Yu-Jin Kang, You-Hyun Seo, Seok-In Na
Summary: By introducing a bi-functional additive with different functional groups, the passivation effect on the defects of perovskite films is enhanced, leading to improved efficiency and stability of solar cells.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Chang Li, Chaoquan Hu, Yang Song, Yi-Meng Sun, Weisheng Yang, Meng Ma
Summary: The study focused on developing a novel cathode for electrochemical H2O2 generation, identifying active sites derived from carboxyl groups, and modifying the cathode with active species to enhance H2O2 generation activity. The results demonstrated that carboxyl-functionalized rGOSF exhibited significantly enhanced activity for H2O2 generation and efficient removal of typical organic pollutants.
Article
Environmental Sciences
David J. A. Wood, Todd M. Preston, Scott Powell, Paul C. Stoy
Summary: UAVs can measure vegetation spectral patterns inexpensively and accurately, improving classification accuracy. Multiple UAV measurements can identify fine-scale phenological variability in complex mixed grass/shrub vegetation.
Article
Biochemistry & Molecular Biology
Francisco Sanchez-Ferez, Joaquim Ma Rius-Bartra, Jose A. Ayllon, Teresa Calvet, Merce Font-Bardia, Josefina Pons
Summary: Aggregation between molecules is crucial for preventing aggregation-caused quenching. By incorporating ligands with different intra- and intermolecular interaction biases, absorption and emission properties can be compared. Properties of functional groups and coordination modes affect the photophysical properties.
Article
Chemistry, Organic
Alparslan Atahan
Summary: The synthesized PyMQ-chalcone compound was well characterized and exhibited increased emission capacity in aggregated state. Addition of metal cations also slightly enhanced emission in acetonitrile/water media. Density-functional theory studies provided electronic parameters such as HOMO-LUMO energy and bond lengths.
POLYCYCLIC AROMATIC COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Dantong Shen, Luqian Dong, Guangxian Zhang, Fang Xu, Yunxuan Weng
Summary: A novel efficient flame retardant FR-AM was successfully synthesized and used to treat cotton fabrics, resulting in durable flame-retardant properties. The treated cotton fabrics showed increased LOI value, reduced heat release rate, and maintained good mechanical properties.
JOURNAL OF MATERIALS SCIENCE
(2022)
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)
