Results 41 to 50 of about 328 (155)

Benzofuroxans: A Possible +100 Years Old Misunderstanding?

ChemPhysChem, Volume 26, Issue 3, February 1, 2025.
Since 1912 benzofuraxans have been believed to be constituted by a benzene ring fused with a pentatomic ring (a N−O−N bridge) and a N+→O− bond. A careful analysis of the electronic and topological properties of strategic representatives of this class of compounds, compared to the corresponding benzofurazans, revealed a different interpretation ...
Irina V. Galkina, Dmitriy I. Bakhtiyarov, Semen R. Romanov, Luiza M. Usupova, Yulia V. Bakhtiyarova, Haiyan Fan, Enrico Benassi   +6 more
wiley   +1 more source

Anti‐MDR Escherichia coli Activity, Phenolic and Flavonoid Content, and Antioxidant Potential of Azadirachta indica A. Juss Ethanolic Leaf Extract: An HR‐LCMS‐Based Profiling Study

The Scientific World Journal, Volume 2025, Issue 1, 2025.
The rise of multidrug‐resistant (MDR) Escherichia coli (E. coli) poses a critical challenge due to limited treatment options. This study evaluates the anti‐MDR E. coli activity, phenolic and flavonoid content, antioxidant potential, and bioactive compounds in ethanolic leaf extracts of Azadirachta indica A. Juss. Among 115 MDR E.
Soma Kanta Baral, Samita Bhasima, Indira Parajuli, Krishna Das Manandhar, Pramod Poudel, Sultan Zahiruddin   +5 more
wiley   +1 more source

Energetic Azoxy‐Coupled Tetrazoles

Journal of Heterocyclic Chemistry, Volume 61, Issue 11, Page 1704-1709, November 2024.
5‐Amino‐2‐methyl‐tetrazole, above, left, when reacted with Oxone affords a transiently stable nitroso intermediate (blue solution). When the nitroso is reacted to completion, 5,5′‐azoxy‐bis‐2,2′‐methyl‐tetrazole is yielded as yellow rods. For scale reference, the microscope slide the crystals rest on is 22 mm × 22 mm. ABSTRACT Azoxy coupling of 5‐amino‐
Nicholas F. Scherschel, Matthias Zeller, Davin G. Piercey   +2 more
wiley   +1 more source

Tandem mass spectrometry of homologous 3‐hydroxyfurazan and nitrile amino acids: Analysis of cooperative interactions and fragmentation processes

Journal of Mass Spectrometry, Volume 59, Issue 6, June 2024.
Abstract The assignment of structure by tandem mass spectrometry (MS/MS) relies on the interpretation of the fragmentation behavior of gas‐phase ions. Mass spectra were acquired for a series of heterocyclic mimetics of acidic amino acids and a related series of nitrile amino acids. All amino acids were readily protonated or deprotonated by electrospray
J. Stuart Grossert, Andrew M. J. Crowell, Donatella Boschi, Marco L. Lolli, Robert L. White   +4 more
wiley   +1 more source

Analysis of degradation products in thermally treated TATB

Propellants, Explosives, Pyrotechnics, Volume 49, Issue 2, February 2024.
Abstract Delineating the chemical composition of TATB (1,3,5‐triamino‐2,4,6‐trinitrobenzene) residues produced from the exposure to abnormal thermal environments should lead to a better understanding of the decomposition paths. Identifying and quantifying each compound in thermally produced residues, monitors which compounds are degrading or forming ...
Keith R. Coffee, Adele F. Panasci‐Nott, Jason A. Olivas, John Selinsky, Keith D. Morrison, Alan K. Burnham, Gregory L. Klunder, John G. Reynolds   +7 more
wiley   +1 more source

“Halotolerant fungi secreting phytohormones and volatile organic compounds enhance growth and mineral content in finger millet under salinity stress”

Plant Stress
Soil salinity is one of the major environmental stresses that significantly hampers crop yield worldwide. This study assessed the effectiveness of the rhizospheric fungus, Aspergillus sojae JUSPF-101, in enhancing the tolerance of finger millet seedlings
Sunita Pandurang Mahadik, Belur Satyan Kumudini   +1 more
doaj   +1 more source

Theoretically Revealing the Response of Intermolecular Vibration Energy Transfer and Decomposition Process of the DNTF System to Electric Fields Using Two-Dimensional Infrared Spectra. [PDF]

Int J Mol Sci, 2023
Ren H, Ji L, Jia X, Tao J, Liu R, Wei D, Wang X, Ji G.   +7 more
europepmc   +1 more source

Microwave Spectra of Furazan. IV. Rotation Spectra of Vibrationally Excited States of Perdeuterated Furazan

Zeitschrift für Naturforschung A, 1990
Abstract The pure rotation spectra of molecules in 25 vibrationally excited states of perdeuterated furazan, C2D2N2O, have been studied by double resonance modulation (DRM) microwave spectroscopy. Twelve of these spectra have been correlated, -on the basis of relative intensity measurements under DRM -, with fundamental vibrations as ...
openaire   +1 more source

Energetic Polymer Possessing Furazan, 1,2,3-Triazole, and Nitramine Subunits. [PDF]

Int J Mol Sci, 2023
Gribov PS, Kondakova NN, Il'icheva NN, Stepanova ER, Denisyuk AP, Sizov VA, Dotsenko VD, Vinogradov DB, Bulatov PV, Sinditskii VP, Suponitsky KY, Il'in MM, Keshtov ML, Sheremetev AB.   +13 more
europepmc   +1 more source

Chemical and Biochemical Reactions of Aromatic Furazan Compounds

YAKUGAKU ZASSHI, 2020
Aromatic furazan has numerous pharmacologic and industrial applications. As part of our work on aromatic furazan chemistry and biochemistry, benzofurazan N-oxides, on irradiation using a high-pressure mercury lamp with a Pyrex filter in acetonitrile containing a little water, afforded 1H-azepine-2,7-dione. Mechanistic studies on the photoreaction using
openaire   +3 more sources