2016
DOI: 10.1002/ajoc.201600371
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Novel Rearrangement Followed by Ring Contraction of Highly Selective and Sensitive Turn‐On Chromogenic and Fluorescent Chemodosimeters for Cu2+ Ions

Abstract: The dual chromogenic and fluorogenic chemodosimetric behaviour of substituted 5-amino-1,2-dihydro-2methyl-1,6-naphthyridine-8-carbonitriles was investigated. The reaction-based indicators operate by an unusualr earrangementf ollowed by ring contraction to generate ap yrro-lopyridine, with a" naked-eye"r esponse and chromofluorogenic selectives ensing for Cu 2 + ions. The structure of the pyrrolopyridine was confirmed by single-crystal X-ray analysis. Results and DiscussionThis report describes the design and s… Show more

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Cited by 4 publications
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“…Compared with conventional detection methods such as titration, [14] electrochemical methods, [15] spectrophotometry, [16] and chromatography, [17,18] fluorescentp robes have received considerable attention due to their simplicity,h igh selectivity, outstanding sensitivity,r apid response time and ability to provide in vivo fluorescencei maging. [19,20] In recent decades, numerous fluorescent probes for the detection of HSO 3 À have been developed. [21][22][23][24][25][26][27][28][29][30][31] Their sensing mechanisms are mainly based on nucleophilic addition, deprotection of levulinate and coordination to metal ions.…”
Section: Introductionmentioning
confidence: 99%
“…Compared with conventional detection methods such as titration, [14] electrochemical methods, [15] spectrophotometry, [16] and chromatography, [17,18] fluorescentp robes have received considerable attention due to their simplicity,h igh selectivity, outstanding sensitivity,r apid response time and ability to provide in vivo fluorescencei maging. [19,20] In recent decades, numerous fluorescent probes for the detection of HSO 3 À have been developed. [21][22][23][24][25][26][27][28][29][30][31] Their sensing mechanisms are mainly based on nucleophilic addition, deprotection of levulinate and coordination to metal ions.…”
Section: Introductionmentioning
confidence: 99%