Novel Rearrangement Followed by Ring Contraction of Highly Selective and Sensitive Turn‐On Chromogenic and Fluorescent Chemodosimeters for Cu 2+ Ions

The dual chromogenic and fluorogenic chemodosimetric behaviour of substituted 5‐amino‐1,2‐dihydro‐2‐methyl‐1,6‐naphthyridine‐8‐carbonitriles was investigated. The reaction‐based indicators operate by an unusual rearrangement followed by ring contraction to generate a pyrrolopyridine, with a “naked‐e...

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Bibliographic Details
Published in:Asian journal of organic chemistry 2016-12, Vol.5 (12), p.1492-1498
Main Authors: Das, Paramita, Chaudhuri, Tandrima, Karmakar, Animesh, Saha, Sucharita, Sengupta Bandyopadhyay, Sumita, Mukhopadhyay, Chhanda
Format: Article
Language:English
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Summary:The dual chromogenic and fluorogenic chemodosimetric behaviour of substituted 5‐amino‐1,2‐dihydro‐2‐methyl‐1,6‐naphthyridine‐8‐carbonitriles was investigated. The reaction‐based indicators operate by an unusual rearrangement followed by ring contraction to generate a pyrrolopyridine, with a “naked‐eye” response and chromofluorogenic selective sensing for Cu 2+ ions. The structure of the pyrrolopyridine was confirmed by single‐crystal X‐ray analysis.
ISSN:2193-5807
2193-5815
DOI:10.1002/ajoc.201600371