Cyanide Anion Determination Based on Nucleophilic Addition to 6 ...

This color change is explained by nucleophilic substitution of the pyrane ring oxygen atom at the indoline C-2 atom by the cyanide anion. This generates the ...

Cyanide anion determination based on nucleophilic addition to 6-[(E)

This work provides a novel approach for the instant detection of CN− anions based on chromogenic 6-[(E)-(4-nitrophenyl)diazenyl]-1′,3,3′ ...

Cyanide Anion Determination Based on Nucleophilic Addition to 6-[(E)-(4-Nitrophenyl)diazenyl]-1′,3,3′,4-tetrahydrospiro[chromene-2,2′-indole] Derivatives.

Selective recognition of cyanide ion via nucleophilic addition ...

Designing of new protocol for the selective recognition of anion is of particular interest in anion chemistry field due to their important role in clinical and ...

Highly selective, colorimetric probes for cyanide ion based on β ...

NMR titration experiments have been performed to study the sensing mechanism for these two dyes. Surprisingly, cyanide anion is nucleophilic addition to the α- ...

Colorimetric Detection of Cyanide with a Chromogenic Oxazine

Among these, reaction based sensing methods in particular nucleophilic reaction takes advantage over other methods because of the cyanide ions nucleophilic ...

Chromogenic Oxazines for Cyanide Detection - ACS Publications

Cyanide Anion Determination Based on Nucleophilic Addition to 6-[(E)-(4-Nitrophenyl)diazenyl]-1′,3,3′,4-tetrahydrospiro[chromene-2,2′-indole] ...

2-thioxo-2H-1,3-thiazin-6(3H)-one - PubMed

Dual-wavelength beta-correction spectrophotometric determination of trace concentrations of cyanide ions based on the nucleophilic addition of cyanide to imine ...

Colorimetric Detection of Cyanide with a Chromogenic Oxazine

Cyanide Anion Determination Based on Nucleophilic Addition to 6-[(E)-(4-Nitrophenyl)diazenyl]-1′,3,3′,4-tetrahydrospiro[chromene-2,2′-indole] ...

Analytica Chimica Acta

Dual-wavelength ˇ-correction spectrophotometric determination of trace concentrations of cyanide ions based on the nucleophilic addition of cyanide to imine ...

A new principle for selective sensing cyanide anions based on 2 ...

... determination of CN − still retains its relevance. ... Cyanide Anion Determination Based on Nucleophilic Addition to 6-[(E)-(4-Nitrophenyl)diazenyl]-1′,3,3 ...

Highly Sensitive Ratiometric Chemosensor and Biomarker for ...

The compound DBTC can detect cyanide anions based on nucleophilic addition as low as 5.76 nM in dimethyl sulfoxide–N-(2-hydroxyethyl ...

Organic synthesis - trouble finding/ understanding correct mechanism

... nucleophilic addition/substitution but am not sure how to proceed, appreciate all help ... Try a different approach - what if the Cyanide ion ...

Cyanide Anions as Nucleophilic Catalysts in Organic Synthesis - Scite

Mentioning: 11 - The nucleophilic addition of a cyanide anion to a carbonyl group is the basis for several cyanide-catalyzed organic reactions, ...

Cyanide Anions as Nucleophilic Catalysts in Organic Synthesis

The nucleophilic addition of a cyanide anion to a carbonyl group is the basis for several cyanide-catalyzed organic reactions, which are summarized in this ...

Highly sensitive turn-off fluorescent detection of cyanide in aqueous ...

... based on the fast nucleophilic attack of cyanide anions on the dicyanovinyl carbon. ... 6 Fluorescence intensity of 7 at 594 nm upon the addition ...

Phenoxazine-based fluorescence chemosensor for selective ...

Keywords Fluorescent chemosensor, Phenoxazine, Cyanide, Nucleophilic addition, Detection limit ... anion was based on nucleophilic addition (Sun et al., 2009).

A sensitive and selective BINOL based ratiometric fluorescence ...

the cyanide anion was added to the vinyl group via nucleophilic addition ... were spiked with a known concentration of cyanide ion, and recovery yields were ...

A reaction-based fluorescent sensor for detection of cyanide in ...

The 1 H NMR studies confirm the nucleophilic addition mechanism, and consistent with the experimental findings, the computational work predicts the feasibility ...

Fluorescence Dyes for Determination of Cyanide - IntechOpen

A novel fluorescent and chromogenic probe for cyanide detection in water based on the nucleophilic addition of cyanide to imine group. ... cyanide anion based on ...