It has been shown that when a-aniinopyridine or a-acetylarniiiopyridine2 is treated with a lower alkyl halide3 or an alkylene dihalide,* the pyridine compound reacts to a large extent in the tautomeric imine form, and that only a small amount of the a-alkylaminopyridine is produced. However, in spite of the unavoidable formation of N-alkyl-a-pyridoneimines, it has been stated5 that interaction of higher alKyl halides (10-14 carbon atoms) with a- ...