Results 31 to 40 of about 4,651 (214)

DESIGN, SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF SOME NEW 2,4-DIAMINO PYRIMIDOTHIAZINE DERIVATIVES [PDF]

Al-Azhar Journal of Pharmaceutical Sciences, 2015
The thermal condensation of 2,4-diamino 5-bromo-6-hydroxypyrimidine with 2-amino-3-mercaptopropylaniline derivatives (6)    and 2-amino-3-mercaptopropymethyllaniline derivatives (9) resulted in 2,4-diamino-6-substituted anilinomethlyl 6,7-dihydro-8H ...
Helmy Sakr
doaj   +1 more source

Z‐Scheme BiOCl‐Based Photocatalysts: Recent Advances in Designing, Structural Engineering, Formation Mechanisms, and High Performance Photocatalytic Environmental Remediation

EcoEnergy, EarlyView.
This review deals with the recent advancements in design and engineering of BiOCl‐based Z‐scheme photocatalysts with emphasis on tailoring of structural, optoelectronic properties and heterojunction assembly for environmental applications including photodegradation of industrial organic waste, pharmaceuticals, pesticides, herbicides, toxic heavy metals,
Sakshi Sharma, Neha Kaushal, Victor Ezebuiro, Monika Sindhu, Lovepreet Singh, Yugesh Singh Thakur, Hendrik C. Swart, Jai Prakash   +7 more
wiley   +1 more source

Difluorocarbene-Triggered [1+5] Annulation: Access to Functionalized 1,1-Difluoro-1,9a-dihydropyrido[2,1‑c][1,4]thiazine Derivatives

, 2023
Difluorocarbene-triggered [1+5] annulation is developed to access 1,1-difluoro-1,9a-dihydropyrido[2,1-c][1,4]thiazine-3,4-dicarboxylate derivatives in satisfactory to good yields via the direct reaction of potassium bromodifluoroacetate and pyridinium 1 ...
Yuliang Wei (6534320), Simin Sun (6374363), Jiaxi Xu (681245)   +2 more
core   +2 more sources

Iron‐modified natural sand as a heterogeneous Fenton catalyst for methylene blue and textile wastewater treatment

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND The continuous discharge of organic dyes into freshwater poses long‐term environmental risks. Heterogeneous Fenton‐like processes using iron (Fe)‐modified silica (SiO2) supports are promising for dye removal; however, catalysts derived from natural sand and operating under near‐neutral conditions remain relatively underexplored ...
Hajer Aloulou, Yassine Khmiri, Chibani Nayla, Afef Attia, Boulbaba Louhichi, Lassad Dammak, Raja Ben Amar   +6 more
wiley   +1 more source

Diverse reactivity of maleimides in polymer science and beyond

Polymer 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, Kristi S Anseth, Tayler S Hebner   +2 more
wiley   +1 more source

Synthesis and crystal structures of two racemic 2-heteroaryl-3-phenyl-2,3-dihydro-4H-pyrido[3,2-e][1,3]thiazin-4-ones

Acta Crystallographica Section E: Crystallographic Communications
3-Phenyl-2-(thiophen-3-yl)-2,3-dihydro-4H-pyrido[3,2-e][1,3]thiazin-4-one (C17H12N2OS2, 1) and 2-(1H-indol-3-yl)-3-phenyl-2,3-dihydro-4H-pyrido[3,2-e][1,3]thiazin-4-one 0.438-hydrate (C21H15N3OS·0.438H2O, 2) crystallize in space groups P21/n and C2/c ...
Hemant P. Yennawar, Tapas K. Mal, Mark A. Olsen, Anthony F. Lagalante, Evelyn M. Louca, Aloura D. Gavalis, Lee J. Silverberg   +6 more
doaj   +1 more source

6-Bromo-4-(2-cyclohexylidenehydrazin-1-ylidene)-1-methyl-2,2-dioxo-3,4-dihydro-1H-2λ6,1-benzothiazine

Acta Crystallographica Section E, 2012
The asymmetric unit of the title compound, C15H18BrN3O2S, contains two independent molecules in both of which the (thiazine)C=N—N double bond exhibits an E conformation.
Muhammad Shafiq, Islam Ullah Khan, Muhammad Zia-ur-Rehman, Muhammad Nadeem Arshad, Muhammad Safder, Zeeshan Haider   +5 more
doaj   +1 more source

Potentiation effects of the positive allosteric modulator PTC‐174 on NMDA receptors in neonatal male rat substantia nigra dopaminergic neurons

British Journal of Pharmacology, Volume 183, Issue 21, Page 6481-6500, November 2026.
Abstract Background and Purpose Positive allosteric modulators bind to secondary binding sites on the receptor and alter receptor conformation and activation, changing agonist potency and efficacy. PTC‐174 is a novel NMDA receptor positive allosteric modulator that particularly enhances activity of receptors containing GluN2C or GluN2D subunits.
Bangyuan Liu, Alasdair J. Gibb
wiley   +1 more source

Novel synthesis, ring transformation and anticancer activity of 1,3-thiazine, pyrimidine and triazolo[1,5-a]pyrimidine derivatives [PDF]

, 2018
Synthesis, heterocyclization and anticancer activity of a new series of heterocyclic compounds are described. Aminothiazine 1 was obtained from the base induced condensation of thiourea, benzaldehyde and ethyl cyanoacetate.
E. Ahmed, A., A. El-Sayed, H., M. El-Hashash, M.   +2 more
core   +1 more source

Methyl 4-hydroxy-2-isopropyl-1,1-dioxo-2H-1,2-benzothiazine-3-carboxylate

Acta Crystallographica Section E, 2011
In the crystal structure of the title molecule, C13H15NO5S, the S and N atoms of the thiazine ring exihibit the maximum deviations from the least-squares plane of 0.3008 (6) and 0.3280 (7) Å, respectively.
Muhammad Nadeem Arshad, Islam Ullah Khan, Muhammad Zia-ur-Rehman, H. M. Rafique, K. Travis Holman   +4 more
doaj   +1 more source