Results 61 to 70 of about 19,900 (217)

Dual Ligand‐Enabled Nondirected C─H Olefination of (Hetero)Arenes for the Synthesis of Clickable Derivatives

Chemistry – A European Journal, EarlyView.
We report an efficient method for late‐stage installation of “clickable” alkyne groups into diverse (hetero)arenes. Using a dual‐ligand palladium catalyst that combines an NASA ligand with an N‐heterocycle, an acrylate unit bearing a terminal alkyne can be introduced via nondirected C─H activation.
Tommaso Braga, Maria Hergert, Manuel van Gemmeren   +2 more
wiley   +1 more source

Absorption and Fluorescence Signatures of 1,2,3-Triazole Based Regioisomers : Challenging Compounds for TD-DFT [PDF]

, 2014
International audienceIn the continuous quest for improving TD-DFT methodologies as a tool to predict the photophysical features of solvated chro- mophores, we herein investigate two model regioisomers based on the 1,2,3-triazole moiety.
Dorcet, Vincent, Fillaut, Jean-Luc, Jacquemin, Denis, Katan, Claudine, Roisnel, Thierry, Savel, Paul, Wong, Bryan,   +6 more
core   +3 more sources

Derivados 1,2,3-triazol

C&T, 2020
A administração de antimicrobianos nos casos de doenças infecciosas é inevitável, porém seu uso excessivo e indiscriminado vem influenciando na resistência bacteriana. Este cenário de saúde constitui uma extensa ameaça à população enferma e necessitada de tratamento terapêutico, o que torna necessário o empenho da comunidade científica na pesquisa e ...
Guilheane Gonçalves Barbosa, Alcino Palermo de Aguiar   +1 more
openaire   +1 more source

Enzymatic Macrocyclization of 1,2,3‐Triazole Peptide Mimetics [PDF]

Angewandte Chemie International Edition, 2016
AbstractThe macrocyclization of linear peptides is very often accompanied by significant improvements in their stability and biological activity. Many strategies are available for their chemical macrocyclization, however, enzyme‐mediated methods remain of great interest in terms of synthetic utility.
Emilia Oueis, Marcel Jaspars, Nicholas J. Westwood, James H. Naismith   +3 more
openaire   +6 more sources

Evaluation of DNA/Chromosome Integrity and Cell Death in Human Metabolically Noncompetent and Competent Cells Exposed to N′‐(3,5‐Difluorobenzylidene)Pyridine‐4‐Carbohydrazide

Journal of Applied Toxicology, EarlyView.
ABSTRACT The N‐acylhydrazone scaffold is recognized as a privileged structure for the design of bioactive substances with increasing applications in medicinal chemistry research. Ensuring the safety of newly developed molecules is a critical step for both human health and environmental protection. Accordingly, this study aimed to evaluate the cytotoxic
Larissa Ribeiro Canuto Santos, Jéssica Natalia Barbosa de Almeida, Camila Cavalleiro Frias, Wanda Pereira Almeida, Edson Luis Maistro   +4 more
wiley   +1 more source

Insights into the Nature of Synergistic Effects in Proton-Conducting 4,4−1H,1H-Bitriazole-Poly(ethylene oxide) Composites [PDF]

, 2009
A nitrogen-containing heterocycle (NCH), 4,4-1H-1H-bi-1,2,3-triazole (bitriazole), capable of mimicking the hydrogen bonding of water in the solid state is synthesized and its ability to conduct protons in the presence of poly(ethylene oxides) under ...
Alabi, Christopher A., Chen, Zhongwei, Davis, Mark E., Yan, Yushan S.   +3 more
core   +1 more source

Engineering Proton Conductive Metal–Organic Glasses Through Secondary Network Formers

Small, EarlyView.
Incorporating secondary network formers enables access to metal–organic glass with tunable structures and properties. This strategy allows systematic control over key metrics, including anhydrous proton conductivities up to 2.6 mS cm−1 at 150°C, a linear increase in glass transition temperature from 11.0°C to 57.4°C, and more than a 200‐fold increase ...
Nattapol Ma, Hideka Ando, Renzhi Ma, Takashi Nakanishi   +3 more
wiley   +1 more source

Cymantrene–Triazole "Click" Products: Structural Characterization and Electrochemical Properties [PDF]

, 2014
We report the first known examples of triazole-derivatized cymantrene complexes (η5-[4-substituted triazol-1-yl]cyclopentadienyl)tricarbonylmanganese(I), obtained via a “click” chemical synthesis, bearing a phenyl, 3-aminophenyl, or 4-aminophenyl moiety ...
Abboud J.-L. M., Anderson C. B., Astruc D., Badèche S., Baltz T., Beyer B., Bock V. D., Borissova A. O., Calladine J. A., Carvalho I., Chong D., Clough M. C., Dallagi T., David P. Day, David. L. Hughes, Dietmar Steverding, Evrard D., Geiger W. E., Geiger W. E., Gil M. V., Glans L., Gregory G. Wildgoose, Gritzner G., Happ B., Hirano T., Hirumi H., Holovics T. C., Huber W., Huisgen R., Jaschinski T., Kee J. W., Kilpin K. J., Kolb H. C., Kolb H. C., Lage M. L., Lawrence E. J., Laws D. R., Laws D. R., Leroux Y. R., Leroux Y. R., Liu Y., Lunquist R. T., Ornelas C., Ornelas C., Otón F., Otón F., Rapakousiou A., Romero T., Romero T., Romero T., Schweinfurth D., Schweinfurth D., Schweinfurth D., Sheridan M. V., Steverding D., Sünkel K., Thomas Dann, To T. T., Vasily S. Oganesyan, Yoo E. J.   +59 more
core   +1 more source

Direct Pd‐Catalyzed Arylation of 1,2,3‐Triazoles. [PDF]

ChemInform, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stepan, Chuprakov, Natalia, Chernyak, Alexander S, Dudnik, Vladimir, Gevorgyan   +3 more
openaire   +3 more sources

Nucleophilic substitution of a phthalimidyl group with morpholine in an N1‐methyl‐1,2,3‐triazole: crystallographic evidence for migration of the methylene bridge

Acta Crystallographica Section C, EarlyView.
X‐ray crystallography revealed that the reaction of 2‐{[4‐(4‐bromophenyl)‐1H‐1,2,3‐triazol‐1‐yl]methyl}phthalimide with morpholine led to substitution of the phthalimide group, including migration of the substituent from N1 to N2 on the 1,2,3‐triazole ring.2‐{[4‐(4‐Bromophenyl)‐1H‐1,2,3‐triazol‐1‐yl]methyl}phthalimide, C17H11BrN4O, was synthesized by ...
Paul R. Palme, Richard Goddard, Markus Leutzsch, Adrian Richter, Peter Imming, Rüdiger W. Seidel   +5 more
wiley   +1 more source