A convenient, one-pot, two-component synthesis of 2-(1-amidoalkyl)pyridines is reported, based upon the substitution of suitably-activated pyridine N-oxides by azlactone nucleophiles, followed by decarboxylative azlactone ring-opening. The synthesis obviates the need for precious metal catalysts to achieve a formal enolate arylation reaction, and constitutes a formally ‘umpoled’ approach to this valuable class of bioactive structures.
报道了一种方便、一锅法、两组分的2-(1-酰胺基烷基)吡啶的合成方法,该方法基于适当活化的吡啶N-氧化物被氮乙酰乙烯亲核试剂取代,然后进行脱羧性的氮乙酰乙烯环开启反应。该合成方法避免了使用贵金属催化剂实现正式烯醇芳基化反应的需要,并构成了一种正式“不极化”方法来合成这种有价值的生物活性结构类。