Polyhalogeno-aromatic compounds. Part XXV. Quaternisation of polyhalogenopyridines and reactions of the pyridinium salts
Abstract
Pentachloropyridine, tetrachloro-2-fluoropyridine, 3,5-dichlorotrifluoropyridine, pentabromopyridine, and pentachloropyridine 1-oxide were methylated with methyl fluorosulphonate to give products which reacted extremely readily with nucleophiles.
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