Results 61 to 70 of about 157,767 (395)

Density Function Theory Study on the Energy and Circular Dichroism Spectrum for Methylene-Linked Triazole Diads Depending on the Substitution Position and Conformation

Molecules
Since the discovery of metal-catalyzed azide–alkyne cycloadditions, 1,2,3-triazoles have been widely used as linkers for various residues. 1,2,3-Triazole is an aromatic five-membered cyclic compound consisting of three nitrogen and two carbon atoms with ...
Masaki Nakahata, Akihito Hashidzume
doaj   +1 more source

Review of the existing maximum residue levels for penconazole according to Article 12 of Regulation (EC) No 396/2005

EFSA Journal, 2017
According to Article 12 of Regulation (EC) No 396/2005, EFSA has reviewed the maximum residue levels (MRLs) currently established at European level for the pesticide active substance penconazole. To assess the occurrence of penconazole residues in plants,
European Food Safety Authority (EFSA), Alba Brancato, Daniela Brocca, Chloé De Lentdecker, Zoltan Erdos, Lucien Ferreira, Luna Greco, Samira Jarrah, Dimitra Kardassi, Renata Leuschner, Christopher Lythgo, Paula Medina, Ileana Miron, Tunde Molnar, Alexandre Nougadere, Ragnor Pedersen, Hermine Reich, Angela Sacchi, Miguel Santos, Alois Stanek, Juergen Sturma, José Tarazona, Anne Theobald, Benedicte Vagenende, Alessia Verani, Laura Villamar‐Bouza   +25 more
doaj   +1 more source

Crystal structure of 2-(4-fluoro-3-methylphenyl)-5-{[(naphthalen-1-yl)oxy]methyl}-1,3,4-oxadiazole

Acta Crystallographica Section E: Crystallographic Communications, 2015
The title compound, C20H15FN2O2, adopts an almost planar conformation. The oxadiazole ring makes dihedral angles of 13.90 (1) and 7.93 (1)° with the naphthalene ring system and benzene ring, respectively, while the naphthalene ring system and benzene ...
Muniyappan Govindhan, Kathavarayan Subramanian, Vijayan Viswanathan, Devadasan Velmurugan   +3 more
doaj   +1 more source

Isolation of bis(copper) key intermediates in Cu-catalyzed azide-alkyne "click reaction". [PDF]

, 2015
The copper-catalyzed 1,3-dipolar cycloaddition of an azide to a terminal alkyne (CuAAC) is one of the most popular chemical transformations, with applications ranging from material to life sciences.
Bertrand, Guy, Jin, Liqun, Melaimi, Mohand, Tolentino, Daniel R   +3 more
core   +2 more sources

SAR exploration of the non‐imidazole histamine H3 receptor ligand ZEL‐H16 reveals potent inverse agonism

Archiv der Pharmazie, Volume 356, Issue 1, January 2023., 2023
ZEL‐H16 (1) has been disclosed to be a high‐affinity non‐imidazole H3R (partial) agonist. However, it was found that 1 acts as an inverse agonist for Gαi in various assays. Concise structure–activity relationship studies, molecular pharmacology, and docking were used to shed more light on the properties of 1.
Gábor Wágner, Tamara A. M. Mocking, Xiaoyuan Ma, Inna Slynko, Daniel Da Costa Pereira, Robin Breeuwer, Niek J. N. Rood, Cas van der Horst, Henry F. Vischer, Chris de Graaf, Iwan J. P. de Esch, Maikel Wijtmans, Rob Leurs   +12 more
wiley   +1 more source

A pyrene-functionalized triazole-linked hexahomotrioxacalix[3]arene as a fluorescent chemosensor for Zn²⁺ ions [PDF]

, 2016
A new pyrenyl appended hexahomotrioxacalix[3]arene L featuring 1,2,3-triazole linkers was synthesized as a fluorescent chemosensor for Zn²⁺ in mixed aqueous media. It exhibited high affinity toward Zn²⁺, and the monomer and excimer emission of the pyrene
Ikejiri, Yusuke, Jiang, Xue-Kai, Ni, Xin-Long, Redshaw, Carl, Wu, Chong, Yamato, Takehiko, Zeng, Xi, Zhao, Jiang-Lin   +7 more
core   +1 more source

Design, Synthesis, and Antimicrobial Activities of 1,2,3-Triazole Glycoside Clickamers

Molecules, 2020
Bacterial resistance remains a significant threat and a leading cause of death worldwide, despite massive attempts to control infections. In an effort to develop biologically active antibacterial and antifungal agents, six novel aryl-substituted-1,2,3 ...
Tamer El Malah, Hany F. Nour, Amira A E Satti, B. Hemdan, W. El‐Sayed   +4 more
semanticscholar   +1 more source

9-Ethyl-6-methyl-7H-1,2,4-triazolo[4,3-b][1,2,4]triazepin-8(9H)-one

IUCrData, 2016
In the title compound, C8H11N5O, the triazepine ring displays a boat conformation. Its mean plane is inclined to the triazole ring by 22.10 (9)°. In the crystal, molecules are linked by C—H...O hydrogen bonds to form chains parallel to the b-axis ...
Youness El Bakri, Abdallah Harmaoui, El Mokhtar Essassi, Mohamed Saadi, Lahcen El Ammari   +4 more
doaj   +1 more source

Synthesis and evaluation of a novel fluorescent sensor based on hexahomotrioxacalix[3]arene for Zn²+ and Cd²+ [PDF]

, 2016
A novel type of selective and sensitive fluorescent sensor having triazole rings as the binding sites on the lower rim of a hexahomotrioxacalix[3]arene scaffold in a cone conformation is reported.
Ikejiri, Yusuke, Jiang, Xue-Kai, Jin, Cheng-Cheng, Ni, Xin-Long, Redshaw, Carl, Wu, Chong, Yamato, Takehiko, Zeng, Xi, Zhao, Jiang-Lin   +8 more
core   +1 more source

Ueber Derivate des Triazols [PDF]

Justus Liebigs Annalen der Chemie, 1898
n ...
Manchot, W., Noll, R.
openaire   +3 more sources