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The Synthesis, Crystal Structure, Modification, and Cytotoxic Activity of α-Hydroxy-Alkylphosphonates.
Molecules
January 2025
Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., 1111 Budapest, Hungary.
A series of α-hydroxy-alkylphosphonates and α-hydroxy-alkylphosphine oxides were synthesized by the Pudovik reaction of acetaldehyde and acetone with dialkyl phosphites or diarylphosphine oxides. The additions were performed in three different ways: in liquid phase using triethylamine as the catalyst (1), on the surface of AlO/KF solid catalyst (2), or by a MW-assisted NaCO-catalyzed procedure (3). In most of the cases, our methods were more efficient and more robust than those applied in the literature.
View Article and Find Full Text PDFTextronic Sensors of Hazardous Gaseous Substances.
Materials (Basel)
January 2025
Faculty of Electrical, Electronic, Computer and Control Engineering, Lodz University of Technology, 18. Stefanowskiego Str., 90-924 Lodz, Poland.
Toxic materials are a threat in workplaces and the environment, as well as households. In them, gaseous substances are included, especially ones without any colour or fragrance, due to their non-detectability with the human senses. In this article, an attempt was made to find a solution for its detection in various conditions with the use of intelligent textiles.
View Article and Find Full Text PDFInulin Dehydration to 5-HMF in Deep Eutectic Solvents Catalyzed by Acidic Ionic Liquids Under Mild Conditions.
ChemSusChem
January 2025
Dipartimento di Scienze Biologiche, Chimiche e Farmaceutiche, Università degli Studi di Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo, Italia.
Valorization of carbohydrate-rich biomass by conversion into industrially relevant products is at the forefront of research in sustainable chemistry. In this work, we studied the inulin conversion into 5-hydroxymethylfurfural, in deep eutectic solvents, in the presence of acidic task-specific ionic liquids as catalysts. We employed aliphatic and aromatic ionic liquids as catalysts, and choline chloride-based deep eutectic solvents bearing glycols or carboxylic acids, as solvents.
View Article and Find Full Text PDFThe mechanism of activity-controlled release of 2,2',4,4'-tetrabromodiphenyl degradation by polystyrene microcapsulated nanoscale zero-valent iron.
Environ Res
January 2025
School of Environment, South China Normal University, Guangzhou 510006, China; Guangdong T'echnology Research Center for Ecological Management and Remediation of Water System, Guangzhou 510006, china.
Nano zero-valent iron (nZVI) is widely used for polychlorinated biphenyl (PBDE) remediation due to its cost-effectiveness and strong reduction capacity. However, its practical application is limited by poor stability, mobility, and antioxidant performance, as well as high reactivity that leads to side reactions and activity loss. To overcome these challenges, a poly(styrene)-encapsulated nZVI (PS-nZVI) core-shell structure was developed using dispersion polymerization.
View Article and Find Full Text PDFSelectivity Effects of Hydrogen Acceptors and Catalyst Structures in Alcohol Oxidations Using (Cyclopentadienone)iron Tricarbonyl Compounds.
J Org Chem
January 2025
Department of Chemistry, Gettysburg College, Gettysburg, Pennsylvania 17325, United States.
Oppenauer-type oxidations are catalyzed by air- and moisture-stable, sustainable, (cyclopentadienone)iron carbonyl compounds, but the substrate scope is limited due to the low reduction potential of acetone, which is the most commonly used hydrogen acceptor. We discovered that furfural, an aldehyde derived from cellulosic biomass, is an effective hydrogen acceptor with this class of catalysts. In general, reactions using furfural as the hydrogen acceptor led to higher isolated yields of ketones and aldehydes compared to those using acetone.
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