- Cite this article as:
- Zarin', P.P., Lavrinovich, É.S. & Aren, A.K. Chem Heterocycl Compd (1974) 10: 99. doi:10.1007/BF00475920
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The reaction of 2-(pyridin-2-yl)benzoxazole and 2-(pyridin-2-yl)benzothiazole with methyl iodide forms the corresponding pyridinium salts. In the case of 2-(pyridin-2-yl)benzimidazole, the imidazole ring is quaternized first, and only then the pyridine ring. The catalytic hydrogenation of 2-(benzoxazol-2-yl)-1-methylpyridinium salts gives 2-(1-methylpiperidin-2-yl)benzoxazole.