A highly selective fluorescent sensor for Fe3+ ion based on coumarin derivatives

Coumarin-based derivatives targetingTrypanosoma cruzicruzain andTrypanosoma bruceicathepsin L-like proteases

“…CG R T : 17.7 min; C 12 H 11 NO 4 : 233.20 g mol −1 ; MS: m / z 233 [M + ]. All these data are in accordance with Chen et al 144…”

Ferric ion detection mechanism of a dicarboxylic cellulose nanocrystal and a 7-amino-4-methylcoumarin based fluorescent chemosensor

“…The association constant was 3.23 × 10 4 M −1 calculated from the slope and intercept of the line. This result was higher than those reported by Zhang et al (1.6 × 10 4 M −1 ) 32 and Chen et al (2.2 × 10 4 M −1 ), 27 indicating that FDCN could better recognize Fe 3+ ions.…”

“…Many studies have shown that coumarin derivatives containing amide bonds exhibit selective fluorescence quenching of Fe 3+ . 27–29 Although the fluorescent CNC prepared by grafting AMC onto CNC derived from sulfuric acid hydrolysis also contained amide bonds, and they exhibited a selective fluorescence quenching effect on Cu 2+ . 30 To the best of our knowledge, there is no relevant report on detecting metal ions by FDCN, and the metal ion binding properties of FDCN are still unclear.…”

Piperidine-Iodine as Efficient Dual Catalyst for the One-Pot, Three-Component Synthesis of Coumarin-3-Carboxamides

“…If necessary, further purification was performed by recrystallization from ethanol. The identity of the known products was confirmed by a comparison of their spectroscopic data and physical properties [ 20 , 24 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ]. The characterization data of synthesized compounds are given in the Supplementary Materials .…”