Results 11 to 20 of about 2,627,799 (128)

An Updated Checklist and Narrative Review of Helminth Parasites of Terrestrial and Semiaquatic Carnivorous Mammals in Uzbekistan. [PDF]

Vet Med Sci
This updated checklist synthesizes 120 publications from 1926 to 2024 and documents 74 helminth species in 15 terrestrial and semiaquatic carnivorous mammals of Uzbekistan. The fauna comprises 36 nematodes, 24 cestodes, 9 trematodes and 5 acanthocephalans. Thirty‐seven species have zoonotic relevance.
Safarov A, Okkiyev S, Ionică AM, Said MB.   +3 more
europepmc   +2 more sources

Sulfonium Salts as Acceptors in Electron Donor-Acceptor Complexes. [PDF]

Angew Chem Int Ed Engl, 2023
Photoactivation of electron donor‐acceptor (EDA) complexes is a sustainable, selective and versatile strategy for the generation of radicals. Sulfonium salt acceptors promise to dramatically expand the range of radicals that can be generated and exploited using EDA chemistry; the use of readily installed “sulfonium tags” relaxes the electronic ...
van Dalsen L, Brown RE, Rossi-Ashton JA, Procter DJ.   +3 more
europepmc   +3 more sources

Methamphetamine Enantiomers: From Chemical Synthesis to Biological Fate. [PDF]

Chirality
Methamphetamine is an amphetamine‐type stimulant characterized by a single stereogenic center, resulting in two enantiomers, (R)‐(−)‐methamphetamine and (S)‐(+)‐methamphetamine, with distinct biological and pharmacological profiles. These forms exhibit differences in central nervous system activity, metabolism, excretion, and overall physiological ...
do Espírito Santo LP, de Carvalho RL, Sad JA, Dos Santos PHC, Domingues RS, de Azevedo Cardoso G, Enes KB, Goulart GAC, de Castro Lourenço das Neves M, de Fátima Â.   +9 more
europepmc   +2 more sources

Mechanochemical Extrusion for Sustainable Synthesis of Amides and Amines via the Leuckart Reaction. [PDF]

ACS Sustain Chem Eng
An extrusion-based, solvent-free method was developed for the synthesis of amides and amines via the Leuckart reaction, representing the first adaptation of this classical transformation into a continuous mechanochemical platform.
Zorzetto F, Perosa A, Rodriguez-Padron D, Selva M.   +3 more
europepmc   +2 more sources

Effects of Clarified Açaí Supplementation and Photobiomodulation on the Parotid Glands of Rats Submitted to Chemotherapy. [PDF]

J Oral Pathol Med
ABSTRACT Background The antineoplastic drugs used in anticancer treatment regimens can induce changes in normal tissues, including salivary glands. This study evaluated the effects of clarified açaí and photobiomodulation (PBM) on the oxidative biochemistry and microstructure of the parotid glands of rats with oral mucositis. Methods Male rats (n = 54)
Melo WWP, Aragão WAB, Ferreira MKM, Dos Santos VRN, Bittencourt LO, Mendes PFS, Frazão DR, Matos-Sousa JM, Ferreira HHN, Perdigão JM, Morais HGF, Rogez H, Freitas RA, Martins MD, Lima RR, de Souza-Rodrigues RD.   +15 more
europepmc   +2 more sources

Evolution of the Dearomative Functionalization of Activated Quinolines and Isoquinolines: Expansion of the Electrophile Scope

Angewandte Chemie, Volume 134, Issue 27, July 4, 2022., 2022
Reductive functionalisation of quinolinium and isoquinolinium salts with formic acid as the terminal reductant was possible under transition‐metal‐free conditions or rhodium catalysis with very low catalyst loadings. A wide range of electrophiles, including enones, imides, unsaturated esters and sulfones, β‐nitrostyrenes and aldehydes, were intercepted
Marvin Kischkewitz, Bruno Marinic, Nicolas Kratena, Yonglin Lai, Hamish B. Hepburn, Mark Dow, Kirsten E. Christensen, Timothy J. Donohoe   +7 more
wiley   +2 more sources

Graphitic Carbon Nitride as Photocatalyst for the Direct Formylation of Anilines

Chemistry – A European Journal, Volume 29, Issue 55, October 2, 2023., 2023
A new metal‐free photocatalytic approach for the direct conversion of N,N‐difunctionalized anilines into formamides derivatives (up to 89 % yield) under mild operative conditions is described herein. In this reaction, graphitic carbon nitride (g‐CN) acts as a robust and fully recyclable visible‐light photocatalyst that was easily recovered and reused ...
Giuseppe Sportelli, Gaia Grando, Manuela Bevilacqua, Giacomo Filippini, Michele Melchionna, Paolo Fornasiero   +5 more
wiley   +1 more source

Recent Advances in the Use of Covalent Organic Frameworks as Heterogenous Photocatalysts in Organic Synthesis

Advanced Materials, Volume 35, Issue 24, June 15, 2023., 2023
The state‐of‐the‐art development of pristine, functionalized, and hybrid covalent organic frameworks (COFs) for photocatalytic organic transformations is presented, arranged in a clear order that states the types of bonds in COFs that can be used in photocatalysis and the photocatalytic mechanisms behind these COFs which influence the performance of ...
Alberto López‐Magano, Saba Daliran, Ali Reza Oveisi, Rubén Mas‐Ballesté, Amarajothi Dhakshinamoorthy, José Alemán, Hermenegildo Garcia, Rafael Luque   +7 more
wiley   +1 more source

B,N-Doped Activated Carbon-Based Electrodes from Potato Peels for Energy Storage Applications. [PDF]

ChemistryOpen
B,N‐co‐doped activated carbon electrode (AC‐PPs‐B‐N) was synthesized from potato peels and dopants of N and B precursors by means of hydrothermal carbonization and subsequent chemical activation. This turned out to be an appealing candidate for energy storage applications, whose electrochemical performance even exceeds that of the benchmark (AC‐Peat ...
Straten JW, Alhnidi MJ, Alchoumari G, Sangam K, Kruse A.   +4 more
europepmc   +2 more sources

Covalent Allosteric Inhibitors of Akt Generated Using a Click Fragment Approach

ChemMedChem, Volume 17, Issue 10, May 18, 2022., 2022
A small library of potential covalent allosteric imidazopyridine‐based inhibitors was designed and synthesised, with click chemistry enabling a modular approach. The binding modes, potencies and antiproliferative activities of these compounds was subsequently explored.
Leandi van der Westhuizen, Jörn Weisner, Abu Taher, Ina Landel, Lena Quambusch, Marius Lindemann, Niklas Uhlenbrock, Matthias P. Müller, Ivan R. Green, Stephen C. Pelly, Daniel Rauh, Willem A. L. van Otterlo   +11 more
wiley   +1 more source