Results 11 to 20 of about 12,602 (203)
Angewandte Chemie International Edition, Volume 65, Issue 10, 2 March 2026.Rapid RASER MRI allows for image acquisition without RF excitation. Instead, a population inversion on the nuclear spins is generated by SABRE hyperpolarization, which allows for self‐excitation through the RASER approach. When the desired transverse magnetization is built‐up, conventional EPI encoding is triggered to record the image.
Sören Lehmkuhl +7 more
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Molecular structures and in Silico molecular docking of new pyrazine-based heterocycles as antibacterial agents [PDF]
BMC ChemistryCompound 2-(2-cyanoacetamido)pyrazine (3) serves as a key precursor for synthesizing various new pyrazine-linked heterocycles, including pyridine, thiazole, pyrazole, chromene, and pyrazolotriazine derivatives.
Mohamed R. Elmorsy +3 more
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Diisopropyl pyrazine-2,5-dicarboxylate [PDF]
Acta Crystallographica Section E Structure Reports Online, 2010 The mol-ecule of the title compound, C(12)H(16)N(2)O(4), is located on an inversion center. The carboxyl-ate groups are twisted slightly with respect to the pyrazine ring, making a dihedral angle of 6.4 (3)°.
Xiao-Qing Zhang +3 more
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A Theoretical Study on the Photochemical Isomerization of 2,6-Dimethylpyrazine
Organics, 2022 DFT calculations on the photoisomerization of 2,6-dimethylpyrazine allowed us to confirm the role of benzvalene isomers in the isomerization of hexatomic heterocyclic compounds. 2,6-Dimethylpyrazine in the excited singlet states can be converted into the
Maurizio D’Auria
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Antimicrobial and Odour Qualities of Alkylpyrazines Occurring in Chocolate and Cocoa Products
Applied Sciences, 2022 A total of 40 pyrazine compounds of cocoa and chocolate were discovered through a literature analysis. Data on the alkylpyrazines’ antibacterial properties were gathered.
Alina Cherniienko +2 more
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IUCrData, 2021 The title compound, C4H4N2S, was obtained by the reduction of 2-mercaptopyrazine (during its crystallization with 2-mercaptopyrazine and isonicotinic acid N-oxide in ethanol solution. It crystallizes in the monoclinic space group P21/m. In the crystal, the molecules are linked by N—H...N and C—H...S hydrogen bonds.
Adrian Olszewski, Kinga Wzgarda-Raj
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Dimethyl and diethyl esters of 5,6-bis(pyridin-2-yl)pyrazine-2,3-dicarboxylic acid: a comparison
Acta Crystallographica Section E: Crystallographic Communications, 2016 In dimethyl 5,6-bis(pyridin-2-yl)pyrazine-2,3-dicarboxylate, C18H14N4O4, (I), and diethyl 5,6-bis(pyridin-2-yl)pyrazine-2,3-dicarboxylate, C20H18N4O4, (II), the dimethyl and diethyl esters of 5,6-bis(pyridin-2-yl)pyrazine-2,3-dicarboxylic acid, the ...
Montserrat Alfonso, Helen Stoeckli-Evans
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Frontiers in Behavioral Neuroscience, 2014 Our previous studies indicated that a cocktail of pyrazine analogues, identified in wolf urine, induced avoidance and fear behaviors in mice. The effects of the pyrazine cocktail on Hokkaido deer (Cervus nippon yesoensis) were investigated in field ...
Kazumi eOsada +2 more
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Frontiers in Microbiology, 2020 The genus Lysobacter includes several bacterial species which show potential for being used in biological control of plant diseases. It was shown recently that several Lysobacter type strains produce volatile organic compounds (VOCs) which controlled the
Anthi Vlassi +9 more
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Tight-Binding Approach to Pyrazine-Mediated Superexchange in Copper–Pyrazine Antiferromagnets [PDF]
Inorganic Chemistry, 2021 We investigate the cause of spatial superexchange anisotropy in a family of copper-based, quasi-two-dimensional materials with very similar geometries. The compounds in this family differ mainly in their inter-layer separation but they have very different magnetic interactions, even within the basal plane.
E. P. Kenny, A. C. Jacko, B. J. Powell
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