Xanthene

About: Xanthene is a research topic. Over the lifetime, 2132 publications have been published within this topic receiving 34803 citations. The topic is also known as: Xanthene & dibenzo[a,e]pyran.

Indium Triflate-promoted Synthesis of Novel 1,2,3-Triazole-, and Isoxazole-substituted Xanthene-1,8(2H)-dione Derivatives

Abstract: An efficient synthetic protocol has been developed for the synthesis of the novel 1,2,3-triazole- and isoxazole-substituted xanthene-1,8(2H)-dione derivatives 3 and 5, respectively, from the reacti...

Synthesis and Analytical Application of a Novel Fluorescent Hg2+ Probe 3′, 6′-Bis(Diethylamino)-2-((2,4-Dimethoxybenzylidene)Amino)Spiro[Isoindoline-1,9′-Xanthene]-3-Thione

Abstract: A novel probe, 3′,6′ - bis(diethylamino) -2- ((2,4-dimethoxybenzylidene)amino) spiro [isoindoline-1,9′-xanthene]-3-thione (RBS), was designed and synthesized. Its structure was characterized with elemental analysis, IR spectra and 1H NMR. The probe displayed highly selective and sensitive recognition of Hg2+. Reacting with mercury ions in aqueous solution, its fluorescence intensity was enhanced significantly, while its color was changed from colorless to pink. So, a new fluorescence method of detection of Hg2+ was proposed. Its dynamic response concentration range and detection limit for Hg2+ were 5.00 × 10−9 M to 1.00 × 10−6 M detected and 1.83 × 10−9 M, respectively. Satisfying results were obtained when the probe was applied to detect spiked Hg2+ in samples.