Synthesis of Some New 1,4-Dihydropyridine Derivatives through a Facile One-pot Hantzsch Condensation Catalyzed by Triethylamine
作者:Wassima Ghalem、Raouf Boulcina、Abdelmadjid Debache
DOI:10.1002/cjoc.201280006
日期:2012.3
A facile and efficient synthesis of new 1,4‐dihydropyridine derivatives was reported via Hantzsch three‐component condensation reaction of aldehydes or formylphenylboronic acids, ethyl acetoacetate, and ammonium acetate in the presence of a catalytic amount of triethylamine under solvent‐free conditions. The method described here offers several advantages including high yields, short reaction times
据报道,在无溶剂条件下,在催化量的三乙胺存在下,通过Hantzsch醛或甲酰基苯基硼酸,乙酰乙酸乙酯和乙酸铵的三组分缩合反应,可以轻松高效地合成新的1,4-二氢吡啶衍生物。这里描述的方法具有许多优点,包括高收率,较短的反应时间和简单的后处理程序。