Premium
Quaternary salts from 2‐(methylpyridyl or quinolyl)benzimidazoles and related polymethine dyes
Author(s) -
Barni Ermanno,
Savarino Piero
Publication year - 1979
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570160814
Subject(s) - cyanine , chemistry , iodide , medicinal chemistry , organic chemistry , physics , quantum mechanics , fluorescence
The quaternisation of 2‐(methylpyridyl or quinolyl)benzimidazoles with methyl iodide leads to a variety of salts depending on the relative position of the nuclei and on the experimental conditions: N ‐methylpyridinium, N ‐methylquinolinium, methyl and 1,3‐dimethylbenzimidazolium iodides, and hydroiodides were isolated. Cyanine dyes were prepared from N ‐methylpyridinium and N ‐methylquinolinium methiodides. The main spectrospcopic features of these compounds are briefly discussed.