13066-95-0Relevant articles and documents
A highly selective 7-hydroxy-3-methyl-benzoxazinone based fluorescent probe for instant detection of thiophenols in environmental samples
An, Ruibing,Wei, Peng,Zhang, Datong,Su, Na
, p. 3039 - 3042 (2016)
A new 7-hydroxy-3-methyl-benzoxazinone based fluorescent probe for thiophenols has been designed and synthesized. The probe displays highly selective and sensitive detection to thiophenols over other common analytes with instant response and remarkable large Stokes shift. It's noteworthy that biothiols, aliphatic thiols, and reducing anions do not perturb the sensing of thiophenols. The limit of detection of the probe was calculated as low as 24 nM for thiophenols. Finally, the utility of probe was illustrated by the detection of thiophenol in real environmental water samples.
Experimental and quantum chemical study on nano-copper immobilized on magnetic graphitic carbon nitride core shell particles; a reusable heterogeneous catalyst toward reduction of nitro arenes
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A new magnetic material, which named CuFe2O4?SiO2?g-C3N4/Cu with a core/shell morphology has been designed and synthesized. For the first time ever, the mixture of carbon and g-C3N4 layer was applied as an effective linker for immobilization of Cu metal on the catalyst. The physiochemical properties of the catalyst were identified by XRD, FT-IR, VSM, FE-SEM and TEM characterization techniques. The reduction of nitro compounds to the corresponding amines was investigated in the presence of NaBH4 at 55 °C in water. Quantum chemical study reveals that the addition of Cu atoms to the g-C3N4 layer induce a slight structural deformation via changing the bond lengths and bond orders, also the type of interaction of Cu atoms and nitrogen atoms of g-C3N4 is mainly electrostatic in nature. Induced pattern of charge distribution provided by Electrostatic Potential Map exhibits the attractive regions for electrophiles and nucleophiles interacting with this system.
Structure-activity relationships of benzoxazolinones with respect to auxin-induced growth and auxin-binding protein
Hoshi-Sakoda,Usui,Ishizuka,Kosemura,Yamamura,Hasegawa
, p. 297 - 300 (1994)
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Optimization of the azobenzene scaffold for reductive cleavage by dithionite; development of an azobenzene cleavable linker for proteomic applications
Leriche, Geoffray,Budin, Ghyslain,Brino, Laurent,Wagner, Alain
experimental part, p. 4360 - 4364 (2010/09/20)
In this paper we conducted an extensive reactivity study to determine the key structural features that favour the dithionite-triggered reductive cleavage of the azo-arene group. Our stepwise investigation allowed identification of a highly reactive azo-arene structure 25 bearing a carboxylic acid, at the ortho position of the electron-poor arene and an ortho-Oalkyl-resorcinol as the electron-rich arene. Based on this 2(2′-alkoxy-4′-hydroxyphenylazo) benzoic acid (HAZA) scaffold, the orthogonally protected difunctional azo-arene cleavable linker 26 was designed and synthesized. Selective linker deprotection and derivatization was performed by introducing an alkyne reactive group and a biotin affinity tag. This optimized azo-arene cleavable linker led to a total cleavage in less than 10 s with only 1 mM dithionite. Similar results were obtained in biological media.