Reaction of the thallium (I) salt of ethyl 1, 4-dihydro-4-oxopyridine-3-carboxylates with alkyl halides was shown to be a useful method for the regioselective N-alkylation of these compounds.
1, 4-二氢-4-氧代
吡啶-3-
羧酸乙酯的
铊 (I) 盐与烷基卤化物的反应被证明是对这些化合物进行区域选择性 N-烷基化的有效方法。