A new three-component domino synthesis of 1,4-dihydropyridines
作者:Vellaisamy Sridharan、Paramasivan T. Perumal、Carmen Avendaño、J. Carlos Menéndez
DOI:10.1016/j.tet.2007.03.092
日期:2007.5
three-component domino reaction between aromatic amines, α,β-unsaturatedaldehydes, and ethyl acetoacetate, providing an efficient new entry into 1,4-dihydropyridines. This new reaction requires very mild reaction conditions, has water as the only side product and is complementary to the classical Hantzsch synthesis in that it is well suited to the preparation of N-aryl-5,6-unsubstituted dihydropyridines. Experiments