Results 31 to 40 of about 4,299 (162)
The Synthesis of Substituted Tetrahydro‐1H‐xanthen‐1‐ones and Xanthenes.
ChemInform, 2005 AbstractFor Abstract see ChemInform Abstract in Full Text.
Mahesh L. Patil, Hanumant B. Borate
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9-(2-Hydroxy-6-oxocyclohex-1-en-1-yl)-2,3,4,9-tetrahydro-1H-xanthen-1-one
Acta Crystallographica Section E, 2013 In the xanthene ring system in the title compound, C19H18O4, the 4H-pyran ring has a maximum deviation of 0.110 (2) Å from planarity and the cyclohexene ring exhibits a puckered conformation [puckering parameters QT = 0.452 (3 ...
Shaaban K. Mohamed +4 more
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9-(4-Hydroxybutyl)-3,3,6,6-tetramethyl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione
Molbank, 2016 The title compound 9-(4-hydroxybutyl)-3,3,6,6-tetramethyl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione was synthesized in 72% yield through a simple, convenient and environmentally friendly one-pot reaction between dimedone and 3,4-dihydro-2H-pyran in
Camilo A. Navarro +2 more
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Results in Chemistry, 2023 In the current research, we designed and synthesized various derivatives of 9-aryl-1,8-dioxo-octahydroxanthene using flow chemistry technique and explored in vitro study for antileishmanial activity against the promastigote as well as amastigote form of ...
Kamlesh Lodha +9 more
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Synthesis, resolution and crystal structures of two enantiomeric rhodamine derivatives
Acta Crystallographica Section E: Crystallographic Communications, 2017 The title molecule, rac-6′-bromo-3′-diethylamino-3H-spiro[2-benzofuran-1,9′-xanthen]-3-one, C24H20BrNO3, was synthesized and the two enantiomers which formed were separated. The structures of all three compounds were determined and compared with those of
Clifton J. Stephenson +6 more
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Molecules, 2023 NIR dyes have become popular for many applications, including biosensing and imaging. For this reason, the molecular switch mechanism of the xanthene dyes makes them useful for in vivo detection and imaging of bioanalytes.
Ishanka N. Rajapaksha +3 more
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The Diarylprolinol Silyl Ethers: After 20 Years Still Opening New Doors in Asymmetric Catalysis
Angewandte Chemie, Volume 138, Issue 11, 9 March 2026.Catalysis Rules! The year 2025 marks the 20th anniversary of diarylprolinol silyl ethers in asymmetric organocatalysis. During the first decade after their discovery, these catalysts have been established as one of the most versatile tools in aminocatalysis. Although now considered mature, recent years have witnessed renewed innovation.
Enrico Marcantonio +2 more
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Applied Sciences, 2020 Metal chelators can be potentially employed in the treatment of various diseases, ranging from metal overload to neoplastic conditions. Some xanthene derivatives were previously reported to complex metals.
Přemysl Mladěnka +10 more
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Unraveling the Position Effect of Spiroxanthene-Based n-Type Hosts for High-Performance TADF–OLEDs
Nanomaterials, 2023 For developing high-performance organic light-emitting diodes (OLEDs) with thermally activated delayed fluorescent (TADF) emitters, the diphenyltriazine (TRZ) unit was introduced onto the 2′- and 3′-positions of xanthene moiety of spiro[fluorene-9,9 ...
Qinglin Liu +9 more
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Facile and rapid synthesis of divers xanthene derivatives using lanthanum(III) chloride/chloroacetic acid as an efficient and reusable catalytic system under solvent-free conditions [PDF]
Journal of the Serbian Chemical Society, 2017 LaCl3/ClCH2COOH was used as an efficient, and recyclable catalytic system for synthesis of 11H-benzo[a]xanthene-11-one, hexahydro-1H-xanthene- 1,8(2H)-dione and 11-aryl-10H-diindeno[1,2-b:2′,1′-e]pyran-10,12(11H)-dione derivatives via a one-pot three ...
Pouramiri Behjat +2 more
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