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Abstract 2‐(Methylpyridyl or quinolyl)benz‐X‐azoles were synthesized by the general reaction between carboxylic acids and o ‐bifunctional compounds. By reaction of the bases with methyl iodide, a series of salts were recovered which were identified and when possible transformed into the corresponding polymethine dyes. The main spectroscopic features of these compounds are briefly discussed.
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Barni et al. (1979) studied this question.
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