The reactivity of the bromine atoms in brominated pyridines; the formation of 1-methyl-6-bromo-2-pyridone from 1-methyl-2.6-dibromopyridinium salts
1. J. P. Wibaut,
2. B. W. Speekman,
3. H. M. van Wagtendonk
Recueil des Travaux Chimiques des Pays-Bas
Volume 58, Issue 12, pages 1100–1104, 1939
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http://dx.doi.org/10.1002/recl.19390581206