Synthesis and Optical Properties of Novel Spiro[chromo(2,3-c)-pyrazole-4,1'-isobenzofuran]-3'-one Compounds

Abstract

Synthesis and Optical Properties of Novel Spiro[chromo(2,3-c)pyrazole-4,1'-isobenzofuran]-3'-one Compounds

Highly Selective and Sensitive Sulfonylhydrazone Type Fluorescent Probe for Rapid Detection of Mercury(II) and Its Application in Logic Gate and Adsorption

“…to 2 equiv., the hydrogen on the secondary amines (À NHÀ ) at 11.51 ppm weaken gradually, but did not disappear, and the hydrogen on other positions had almost no change (Figure 8b, c, d). Based on the above experimental results and the literatures [40][41][42][43], the plausible mechanism of BS-Hg 2 + is proposed (Figure 9). And this experiment results could be verified by mass spectrometry (m/z 734.0939 [BS + Hg 2 + + Na + ] + ) (Figure S12).…”

“…And the linear regression equation was y = À 22.88x + 865.6 (R 2 = 0.9982). Based on the 3σ/k, [40][41][42][43][44] the lowest detection limit (LOD) of BS for Hg 2 + was found to be 2.84 × 10 À 8 M. Excellent linear correlation and low detection limit indicated that BS could not only qualitatively detect Hg 2 + , but also quantitatively detect Hg 2 + in a certain concentration range.…”

“…The triphenylamine unit has a unique propeller structure, excellent electron donating ability and easy-to-modify molecular structure, so it can be used as a luminescent group for small molecule fluorescent probes. Based on the previous work of our laboratory, [40][41][42][43][44][45][46][47][48][49][50][51][52] in this paper, triphenylamine was used as the fluorescent group, and the thiophene ring was introduced to modify it through Suzuki coupling reaction, which greatly increased the conjugation degree of triphenylamine and the electron donating ability allowed it to have better optical properties. Then, through condensation with benzenesulfonyl hydrazide, the Schiff base structure was introduced to enhance the coordination ability with Hg 2 + , to achieve the purpose of high selectivity and rapid detection.…”

Highly selective and sensitive fluorescent probe possessing AIEE and ICT properties for rapid detection of Pb2+ in aqueous medium and its applications in living cells

“…Schiff bases contain C=N bands that show strong binding affinities for metal ions and the synthesis steps are relatively simple. Based on this research and combined with the previous work of our team, [ 27–41 ] we designed and synthesized a novel benzenesulfonyl hydrazone, the highly efficient fluorescent probe DBTBH , using the condensation reaction of aldehydes and benzenesulfonyl hydrazide for the selective and sensitive detection of Pb 2+ in highly aqueous media and without any interference from other metal cations and anions. As far as we know, this is the first time that the structure of benzenesulfonyl hydrazone has been reported as a fluorescent probe.…”

Synthesis of Sulfonylhydrazone Type Probe with High Selectivity for Rapid Detection of Mercury and Its Application in Adsorption and HeLa Cell

“…Herein, based on previous work of our laboratory, a novel sulfonyl hydrazone probe S1 was synthesized by simple condensation of benzene sulfonyl hydrazine with 4-diphenylamino benzaldehyde (Scheme 1). [34][35][36][53][54][55][56][57][58][59][60][61][62][63][64] As compared to other probes reported before, sulfonyhydrazone based probes S1 displayed superiority from the viewpoint of high selectivity, sensitivity and ease in detection. Moreover, this probe can be applied for the detection of Hg 2＋ in HeLa cells, which shows good biocompatibility and can evidently enhance the fluorescence in live cells imaging.…”