Fluoro-2,4,6-trimethylpyridinium Tetrafluoroborate

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Baudoux, J. Cahard, D., Organic Reactions John Wiley Sons, Hoboken, 2007, Vol. 69, p. 347. 

Alternate Name 1-fluoro-sy/w-collidinium tetrafluoroborate. Physical Data (1) mp 215-217 °C (2) mp 168-170 C. Solubility soluble in CH3CN, CH2CI2, THF, Et20. 

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The reagent F-Teda BF4 (6) is effective for the fluorination of nitrogen-containing heterocyclic compounds.107 Thus, 1-fluoroquinuclidinium (cf. preparation of compounds 3, vide supra), 1-fluoropyridinium (cf. Section 9.4.) and l-fluoro-2,4,6-trimethylpyridinium tetrafluoroborate have been prepared in excellent yield by fluorination of quinuclidine, pyridine and 2,4,6-trimethylpyridine with F-Teda BF4 (6).107... 

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