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Synthesis of a novel pyrylium salt with chemoselectivity to a cyanide anion
Cited 12 time in
Web of Science
Cited 14 time in Scopus
- Authors
- Issue Date
- 2015-03
- Publisher
- TAYLOR & FRANCIS LTD
- Citation
- SUPRAMOLECULAR CHEMISTRY, Vol.27 No.3, pp.191-200
- Abstract
- The high-yield one-pot synthesis of a novel chemosensor based on a 4-methyl 2,6-diphenyl pyrylium trifluoromethanesulfonate (Pyr) salt that absorbs in the visible region is reported. The ability of pyr to sense various anions has been investigated using UV-visible spectroscopy and fluorescence spectroscopy. Pyr selectively detects CN- in competition with various other anions such as Cl-, Br-, I-, SCN-, ClO4-, NO3-, HSO4- and PF6-, due to its highly reactive nature towards nucleophiles. The selective detection of CN- with pyr gave rise to a significant hypochromic effect in CH3CN solution at lambda(max) 387 and 446nm, which are the absorption and fluorescence peaks, respectively. These studies indicated a high affinity of CN- for pyr, and forming a 1:1 ratio leads to cyano-enone derivative.
- ISSN
- 1061-0278
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