Quaternary salts from 2‐(methylpyridyl or quinolyl)benzimidazoles and related polymethine dyes | Zendy

Barni Ermanno | Zendy; Savarino Piero | Zendy

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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.

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