Results 101 to 110 of about 19,065 (226)

Tetrazolium Compounds: Synthesis and Applications in Medicine

Molecules, 2015
Tetrazoles represent a class of five-membered heterocyclic compounds with polynitrogen electron-rich planar structural features. This special structure makes tetrazole derivatives useful drugs, explosives, and other functional materials with a wide range
Cheng-Xi Wei, Ming Bian, Guo-Hua Gong
doaj   +1 more source

Study of structure and properties of platinum(II) chloride complexes with (2-alkyltetrazol-5-yl)acetic acid by quantum chemistry and NMR-spectroscopy methods

Журнал Белорусского государственного университета: Химия, 2019
It has been shown that the WP04 functional in combination with moderate basic sets 6-31G(d) and SDD allows to calculate characteristics of 1H NMR-spectrum of metal complexes with ligands based on tetrazole derivatives with high accuracy, which can be ...
Vitaly E. Matulis, Ekaterina G. Ragoyja, Tatiyana V. Serebryanskaya, Yuri V. Grigoriev, Oleg A. Ivashkevich   +4 more
doaj   +1 more source

Synthesis of N4-aryl-β-d-glucopyranosylcytosines: a methodology study [PDF]

, 2015
A number of leaving groups, including arylsulfonates, triazoles, 3-nitrotriazoles, and tetrazoles, have been studied for the substitution reaction by aryl and alkyl amines at the 4-position of β-d-glucopyranosyluracils. Examination of the stability, ease
Eugenia Smyrli, Evangelia D. Chrysina, Michael Mamais, Paschalis Grammatopoulos, Thanasis Gimisis, Virginia Kouloumoundra   +5 more
core   +1 more source

Dehydroabietylamine derived bistetrazoles from ultrasound-assisted pseudo-seven-component Ugi reactions act as efficient and selective inhibitors of cholinesterases

European Journal of Medicinal Chemistry Reports
The reaction of dehydroabiethylamine (DHA) with isocyanides and formaldehyde produces varying products depending on the conditions employed. In a 4-component Ugi reaction using benzyl isocyanide, paraformaldehyde, and TMS-azide, the anticipated tetrazole
Niels V. Heise, Antonia Schmidt, Jördis-Ann Schüler, René Csuk   +3 more
doaj   +1 more source

MMP-13 Selective α-sulfone Hydroxamates: a Survey of P1\u27 Heterocyclic Amide Isosteres [PDF]

, 2011
Seeking compounds preferentially potent and selective for MMP-13, we reported in the preceding Letter on a series of hydroxamic acids with a flexible benzamide tail groups.(1a) Here, we replace the amide moiety with non-hydrolyzable heterocycles in an ...
Barta, Thomas E., Becker, Daniel P., Bedell, Louis J., Easton, Alan M.   +3 more
core  

Crystal structure of 4-methylsulfanyl-2-(2H-tetrazol-2-yl)pyrimidine

Acta Crystallographica Section E: Crystallographic Communications, 2015
The title compound, C6H6N6S, crystallized with two independent molecules (A and B) in the asymmetric unit. The conformation of the two molecules differs slightly.
Andreas Thomann, Volker Huch, Rolf W. Hartmann   +2 more
doaj   +1 more source

A New Design Strategy of Series of Tetrazole-Based High-Energy-Density Energy Storage Molecular Systems

Energies
Innovative energy storage technologies in the energetic materials field represent a critical frontier in energy research. Consequently, we developed a performance regulation strategy based on tetrazolyl high-energy-density energy storage molecular ...
Xiaowei Wu, Qiyao Yu
doaj   +1 more source

Crystal structures of the three closely related compounds: bis[(1H-tetrazol-5-yl)methyl]nitramide, triaminoguanidinium 5-({[(1H-tetrazol-5-yl)methyl](nitro)amino}methyl)tetrazol-1-ide, and diammonium bis[(tetrazol-1-id-5-yl)methyl]nitramide monohydrate

Acta Crystallographica Section E: Crystallographic Communications, 2017
In the molecule of neutral bis[(1H-tetrazol-5-yl)methyl]nitramide, (I), C4H6N10O2, there are two intramolecular N—H...O hydrogen bonds. In the crystal, N—H...N hydrogen bonds link molecules, forming a two-dimensional network parallel to (-201) and weak C—
Lauren A. Mitchell, Gregory H. Imler, Damon A. Parrish, Jeffrey R. Deschamps, Philip W. Leonard, David E. Chavez   +5 more
doaj   +1 more source

Crystal structure and Hirshfeld surface analysis of 5-(3-nitro-1H-pyrazol-4-yl)-1H-tetrazole

Acta Crystallographica Section E: Crystallographic Communications
5-(3-Nitro-1H-pyrazol-4-yl)tetrazole, C4H3N7O2, was synthesized from cyanopyrazole via the Huisgen reaction. The asymmetric unit contains two molecules, each displaying notable torsion between the pyrazole and tetrazole systems.
Shannon E. Creegan, James A. Ridenour, Patrick A. Caruana, Ian D. Giles, Andrew T. Kerr   +4 more
doaj   +1 more source

Theoretical Investigation of Interaction of 1-R-5-Mercaptotetrazoles with Silver and Palladium Particles. [PDF]

, 2012
The molecular electrostatic potential (MESP) distribution for 1-R-5-mercaptotetrazolium anions, as well as total energy of complexes of 1-R-5-mercaptotetrazoliums ions with silver and palladium particles has been calculated using DFT approach. Based on
Ivashkevich, O.A., Matulis, V.E., Mazheika, A.S.   +2 more
core