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Quaternary salts and polymethine dyes from 2‐(methylpyridyl)‐X‐azolo[4,5‐ b ]pyridine
Author(s) -
Savarino Piero,
Viscardi Guido,
Barni Ermanno,
Di Modica Gaetano
Publication year - 1987
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.5570240428
Subject(s) - chemistry , pyridine , picoline , medicinal chemistry , polymer chemistry
If picoline and X‐azolo[4,5‐ b ]pyridine are linked, an assembled system arises which has a particular behaviour towards various quaternizing agents. As soon as picolinium salts could be obtained, the corresponding styryl dyes were prepared. The structures of bases, salts and dyes were clarified and their physical and spectroscopic data were correlated and compared with those of similar systems previously studied.