Synthesis and Characterization of γ-Heteroaryl-substituted Pentamethine Cyanine Dyes with Carboxy or Methoxycarbonyl Substituents at the Two Heterocyclic End Groups

Seven novel pentamethine cyanine dyes with 3,5‐dimethylpyridinium‐1‐yl, pyridinium‐1‐yl, and 1‐quinolinum‐1‐yl substituents in the γ position of the methine chain containing ester or carboxylic acid groups in the ring of the dyes were synthesized via a three‐step procedure. The visible spectral beha...

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Bibliographic Details
Published in:Journal of heterocyclic chemistry 2014-09, Vol.51 (5), p.1457-1462
Main Authors: Mehranpour, A. M., Hashemnia, S., Azamifar, F.
Format: Article
Language:English
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Summary:Seven novel pentamethine cyanine dyes with 3,5‐dimethylpyridinium‐1‐yl, pyridinium‐1‐yl, and 1‐quinolinum‐1‐yl substituents in the γ position of the methine chain containing ester or carboxylic acid groups in the ring of the dyes were synthesized via a three‐step procedure. The visible spectral behavior of the pentamethine cyanine dyes was examined in DMSO. Elemental analysis, IR, 1H‐NMR, 13C‐NMR, and mass spectral (MS) data confirmed the molecular structure of the newly synthesized compounds.
ISSN:0022-152X
1943-5193
DOI:10.1002/jhet.1816