An easy three-step pathway for the synthesis of arylacetaldehydes from the corresponding carboxylic acids in very high yields is described. Their use as precursors of 5-substituted-2-aminothiophenes is illustrated via a microwave-assisted Gewald reaction. This method allows obtaining the expected compounds in a shorter time and with better yields and purities than the classical procedures.
一种从相应的
羧酸合成高产率芳基
乙醛的简单三步骤途径被描述。通过微波辅助的Gewald反应,它们作为5-取代-2-
氨基
噻吩的前体的用途被阐明。这种方法允许在更短的时间内以更好的产率和纯度获得预期的化合物,优于经典的方法。