Reactions of Heterocyclic Ketene Aminals with 2-[3-Oxoisobenzofuran-1(3H)-ylidene]malononitrile: Synthesis of Novel Polyfunctionalized 1,4-Dihydropyridine-Fused 1,3-Diazaheterocycles
Reactions of Heterocyclic Ketene Aminals with 2-[3-Oxoisobenzofuran-1(3H)-ylidene]malononitrile: Synthesis of Novel Polyfunctionalized 1,4-Dihydropyridine-Fused 1,3-Diazaheterocycles
An efficient method has been developed for the synthesis of a novel kind of polyfunctionalized 1,4-dihydropyridine-fused 1,3-diazaheterocycles via the reactions of heterocyclic ketene aminals (HKAs) with 2-[3-oxoisobenzofuran-1(3H)-ylidene]malononitrile.