Results 11 to 20 of about 7,454 (221)
A Convenient Preparation of Xanthene Dyes
, 2016 A facile synthetic route utilizing readily available reagents affords a series of regioisomerically pure xanthene dye derivatives. Advantages include relatively mild conditions and good to excellent yields.
Robert M. Strongin (285461) +8 more
core +12 more sources
Photosensitization of Colloidal SnO2 Semiconductor Nanoparticles with Xanthene Dyes [PDF]
Journal of Chemistry, 2013 The photochemical behavior of xanthene dyes (fluorescein, erythrosine, and eosin) with colloidal SnO2 nanoparticles was probed by UV-visible, steady state, and time resolved fluorescence measurements. The prepared SnO2 nanoparticles were characterized by
R. Renganathan +3 more
core +2 more sources
14-Bromo-12-chloro-2,16-dioxapentacyclohenicosa-3(8),10,12,14-tetraene-7,20-dione [PDF]
, 2013 In the title compound, C19H16BrClO4, both the fused xanthene rings and one of the cyclohexane rings adopt envelope conformations, while the other cyclohexane ring is in a chair conformation. In the crystal, molecules are linked by C-H...O hydrogen bonds,
marzouk, AAE +4 more
core +4 more sources
Continuous flow catalysis with CuBTC improves reaction time for synthesis of xanthene derivatives
Frontiers in Chemistry, 2023 The copper-based metal-organic framework (MOF) CuBTC (where H3BTC = benzene-1,3,5-tricarboxylate) has been shown to be an efficient heterogeneous catalyst for the generation of 1,8-dioxo-octa-hydro xanthene derivatives, which are valuable synthetic ...
Jonathan E. Thai +4 more
doaj +1 more source
DNA Binding Affinity Assessment of Xanthene Compounds: In Vitro and In Silico Approach [PDF]
Kemija u Industriji, 2023 Xanthene derivatives are an important class of heterocyclic compounds with a wide spectrum of pharmacological activities. In our previous investigations, we found the good antiproliferative activity of two xanthene derivatives, with minimal toxicity ...
Elma Veljović +5 more
doaj +1 more source
Xanthene[n]arenes: Exceptionally Large, Bowl-shaped Macrocyclic Building Blocks Suitable for Self-Assembly [PDF]
, 2021 A new class of macrocycles denoted as “xanthene[n]arenes” was synthesized. In contrast to most other macrocycles, they feature a rigid bowl-shape, required for the synthesis of cavitands and for the self-assembly to molecular capsules via non-covalent ...
Jonathan, Pfeuffer-Rooschüz +2 more
core +2 more sources
مجلة بغداد للعلوم, 2023 Polyaromatic hydrocarbons (PAHs) are a group of aromatic compounds that contain at least two rings. These compounds are found naturally in petroleum products and are considered the most prevalent pollutants in the environment.
Rayan M. Faisal, Ahmed Y. Al-Shiti
doaj +1 more source
Xanthene-Based NIR-II Dyes for In Vivo Dynamic Imaging of Blood Circulation
Fluorescence bioimaging through the second near-infrared window (NIR-II, 1000–1700 nm) has attracted much attention due to its deep penetration and high contrast.
Yuantao Yang (9034727) +6 more
core +5 more sources
Synthesis of 14H-dibenzoxanthenes in green media using Sn(II)/nano silica as an efficient catalyst
Frontiers in Chemistry, 2022 In this project, Sn(II)/nano silica has been prepared using a simple deposition of SnCl2.2.H2O on nano-silica. The prepared catalyst has been used as a green and reusable catalyst for synthesis of 14H-dibenzoxanthenes through a one-pot condensation ...
Hossein Tavakol, Mahdieh Firouzi
doaj +1 more source
Beilstein Journal of Organic Chemistry, 2021 In this work, new derivatives (substituted 9-methyl-9-arylxanthenes) of xanthene compounds (5a–l) of possible biological significance were synthesized by developing a new synthesis method.
Tülay Yıldız +2 more
doaj +1 more source