Results 71 to 80 of about 12,506 (227)

First Principle Study of Electronic Structure, Chemical Bonding and Optical Properties of 5-azido-1H-tetrazole

open access: yesInternational Journal of Electrochemical Science, 2013
First principle calculations were performed to investigate the electronic band structure, density of states, charge density and optical properties of 5-azido-1H-tetrazole.
Saleem Ayaz Khan, A.H. Reshak
doaj   +1 more source

Gold(I)‐Catalyzed Annulation of Pyridines Containing Alkyne: Synthesis of N‐Alkenyl Pyridonyl Azides via Rearrangement

open access: yesJournal of Heterocyclic Chemistry, EarlyView.
One‐pot gold(I)‐catalysts synthesis was developed in order to prepare N‐alkenyl 2‐pyridonyl azides. This method provides a series of N‐alkenyl 2‐pyridonyl azides in moderate to excellent yields (up to 94%). ABSTRACT A novel strategy, involving the preparation of gold‐catalyzed cyclization salts and the rearrangement of these salts in the presence of ...
Ali Osman Karatavuk
wiley   +1 more source

Convergent Three-Component Tetrazole Synthesis [PDF]

open access: yes, 2016
A microwave-accelerated, simple, and efficient method for the construction of the 1,5-tetrazole scaffold was developed. It comprises a multicomponent reaction of an amine, a carboxylic acid derivative, and an azide source.
Dömling, Alexander, Chandgude, Ajay L.
core   +2 more sources

Boronic Acid Inhibitors of β‐Lactamases: A Promising Strategy Against Antimicrobial Resistance

open access: yesMedicinal Research Reviews, EarlyView.
ABSTRACT The rise of antimicrobial resistance (AMR) poses a critical threat to global health, mostly due to the proliferation of β‐lactamases, a class of enzymes responsible for the inactivation of β‐lactam antibiotics. Among the most promising strategies to restore β‐lactam efficacy is the use of β‐lactamase inhibitors (BLIs), with boronic acid ...
Nicolò Santi   +4 more
wiley   +1 more source

Diverse reactivity of maleimides in polymer science and beyond

open access: yesPolymer International, Volume 74, Issue 4, Page 296-306, April 2025.
This mini‐review provides a thorough overview of maleimide chemistry, highlighting its diverse reactivity in polymer and materials science applications. Abstract Maleimides are remarkably versatile functional groups, capable of participating in homo‐ and copolymerizations, Diels–Alder and (photo)cycloadditions, Michael additions, and other reactions ...
Bruce E Kirkpatrick   +2 more
wiley   +1 more source

Structural investigation of nitrogen-linked saccharinate–tetrazole

open access: yes, 2011
The molecular structure of nitrogen-linked saccharinate–tetrazole, N-(1,1-dioxo-1,2-benzisothiazol-3-yl)-amine-1H-tetrazole (BAT), was investigated in the crystalline state using X-ray crystallography and infrared and Raman spectroscopies, and isolated ...
Cabral, Lília   +20 more
core   +1 more source

4-[(2H-Tetrazol-2-yl)methyl]benzonitrile

open access: yesActa Crystallographica Section E, 2008
The title compound, C9H7N5, was synthesized by reaction of 4-(bromomethyl)benzonitrile and 2H-tetrazole in the presence of KOH. The relative orientation of the planar tetrazole ring and the methylbenzonitrile moiety is (−)-anticlinal.
Zhi-Rong Qu, Zheng Xing
doaj   +1 more source

Oxadiazolone‐Triazole Derivatives as a New Scaffold for Modulation of Angiotensin II‐Induced Vascular Contraction

open access: yesChemMedChem, Volume 21, Issue 17, 14 September 2026.
A novel series of candidate AT1 receptor antagonists based on oxadiazolone‐triazole scaffolds was designed and synthesized. Most compounds reduced angiotensin II‐induced vascular contraction in an initial biological screening, with compound 7f emerging as the most active derivative.
Larissa F. L. Ferreira   +5 more
wiley   +1 more source

Computational Design and Theoretical Evaluation of Novel Heterocyclic Energetic Materials Based on 5‐H‐Imidazo‐[4,5‐c]‐Pyridazine and 1,2,4‐Triazolo‐[4,3‐a]‐Pyrazine Scaffolds

open access: yesJournal of Computational Chemistry, Volume 47, Issue 23, September 5, 2026.
Eighty‐eight novel energetic compounds based on 5‐H‐imidazo‐[4,5‐c]pyridazine and 1,2,4‐triazolo‐[4,3‐a]pyrazine scaffolds, functionalized with nitro, nitramino, azido, and nitrate ester groups, were theoretically evaluated by DFT. Nine candidates surpassed RDX in density and detonation performance while maintaining acceptable impact sensitivity.
Luciana Amorim da Silva   +3 more
wiley   +1 more source

Synthesis and Characterisation of Tetra-tetrazole Macrocycles [PDF]

open access: yes, 2007
The syntheses of tetra-tetrazole macrocycles, containing two bis-tetrazole units linked by a variety of alkyl chain lengths from four to eight carbons, are described.
Prajapati, Vipa   +5 more
core  

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