Results 81 to 90 of about 3,055 (208)

Synthesis, Biological Evaluation, and Molecular Docking of Tellurium‐Containing Benzothiazole Derivatives as Enzyme Inhibitors of DNA Gyrase and Dihydrofolate Reductase

BioMed Research International, Volume 2026, Issue 1, 2026.
Tellurium‐containing heterocycles represent an emerging class of organochalcogen compounds with notable redox properties and antimicrobial potential. Incorporation of tellurium into sulfur‐ and nitrogen‐containing frameworks can enhance biological activity through increased polarizability and favorable noncovalent interactions.
Olha Haleha, Valeriy Pantyo, Nataliya Korol, Elvira Danko, Mykhailo Onysko, Poorani Gurumallesh Prabu   +5 more
wiley   +1 more source

Синтез и восстановительное расщепление 3-(2-фторфенил)- и 3-(4-фторфенил)-циклопент-5-ЕН[d]изоксазолинов никелем Ренея в трифторуксусной кислоте [PDF]

, 2013
Фторсодержащие 3-арилциклопент-5-ен[d]изоксазолины получены в результате реакции 1,3-диполярного циклоприсоединения циклопентадиена и ароматических нитрилоксидов.
Антоневич, Инесса Петровна, Каток, Ядвига Марьяновна, Нестерова, Светлана Владимировна   +2 more
core  

Radical Fluoroalkylation Reactions [PDF]

, 2018
Recent protocols and reactions for catalytic radical perfluoroalkylations will be described. The production of perfluoroalkyl radicals (RF = CnF2n+1, n ≥ 2), which effect both addition and substitution reactions on organic substrates, can be realized ...
Barata Vallejo, Sebastian, Cooke, María Victoria, Postigo, A.   +2 more
core   +1 more source

World Association for Veterinary Dermatology Consensus Statement for Diagnosis, and Evidence‐Based Clinical Practice Guidelines for Treatment and Prevention of Canine Leishmaniosis

Veterinary Dermatology, Volume 36, Issue 6, Page 723-787, December 2025.
Hyperkeratosis of (a) the footpads and (b) the nasal planum. ABSTRACT Background Canine leishmaniosis (CanL) due to Leishmania infantum remains common, and veterinarians do not always follow scientifically sound approaches for diagnosis, treatment and prevention. Objectives To provide consensus guidelines for diagnosis and evidence‐based guidelines for
Manolis N. Saridomichelakis, Gad Baneth, Silvia Colombo, Filipe Dantas‐Torres, Lluís Ferrer, Alessandra Fondati, Guadalupe Miró, Laura Ordeix, Domenico Otranto, Chiara Noli   +9 more
wiley   +1 more source

Synthesis and reductive cleavage of 3-(2-flurophenyl) and 3-(4-flurophenyl)-cyclopent-5-en[d]isoxazolines by raney nickel in trifluroacetic acid [PDF]

, 2013
3-Fluoro arylcycloopent-5-en[d]isoxazolines have been obtained via the 1,3-dipolar cycloaddition of cyclopentadiene to aromatic nitrile oxides. The reductive cleavage of these isoxazolines by Raney nickel in trifluoroacetic acid led to corresponding ...
Antonevich, I. P., Katok, Ya. M., Nesterova, S. V.   +2 more
core  

Enantioselective Desymmetrization by Chiral Bifunctional H‐Bonding Organocatalysts

Chemistry – A European Journal, Volume 31, Issue 61, November 3, 2025.
Enantioselective desymmetrization has emerged as a highly efficient and conceptually elegant strategy for the construction of chiral molecules from readily available prochiral substrates. This review focuses on recent developments in organocatalytic desymmetrization reactions, with particular emphasis on approaches involving bifunctional activation ...
Michal Urban, Jan Veselý
wiley   +1 more source

Asymmetric Lewis acid-catalyzed 1,3-dipolar cycloadditions [PDF]

, 2017
Highly tuned, one-point binding chiral iron and ruthenium complexes selectively coordinate and activate α,β-unsaturated aldehydes and ketones toward asymmetric catalytic Diels-Alder cycloaddition reactions.
Brinkmann, Yasmin, Bădoiu, Andrei, Kündig, E. Peter, Viton, Florian   +3 more
core  

Introduction of Substituents on the 2-Oxo-piperazine Skeleton by [3+2] Cycloaddition and Subsequent Transformation [PDF]

, 2006
The 3,4-substituted 2-oxo-piperazines 5 - 9 are obtained by [3+2] cycloaddition from nitrone 1 and a variety of alkenes. Subsequent functionalization of the bicyclic adducts involves reductive N-O bond cleavage. A route towards libraries of immobilized 1,
Rück-Braun, Karola, Wierschem, Frank
core   +1 more source

Glucopyranosylidene-Spiro-Thiazolinones: Synthetic Studies and Determination of Absolute Configuration by TDDFT-ECD Calculations [PDF]

, 2017
Reactions of O-peracylated C-(1-bromo-β-d-glucopyranosyl)formamides with thioamides furnished the corresponding glucopyranosylidene-spiro-thiazolin-4-one.
Kun, Sándor, Kurtán, Tibor, Mándi, Attila, Somsák, László, Szabó, Erzsébet Katalin   +4 more
core   +2 more sources

N–O Cleavage reactions of heterobicycloalkene-fused 2-isoxazolines

Beilstein Journal of Organic Chemistry, 2014
Transition metal-mediated N–O bond cleavage reactions of heterobicycloalkene-fused 3-methyl-2-isoxazolines were investigated. Optimal cleavage conditions were found with Raney nickel/AlCl3 mediation in aqueous methanol.
Jaipal R. Nagireddy, Geoffrey K. Tranmer, Emily Carlson, William Tam   +3 more
doaj   +1 more source