N-alkylated pyridines as privileged medicinal scaffolds was developed via a unique three-component reaction of easily available aromatic as well as heteroaromatic aldehydes, N-alkyl-2-cyanoacetamides and malononitrile in EtOH in the presence of K₂CO₃ as a base promoter under microwave irradiation. The presented tandem process is presumed to proceed via Knoevenagel condensation, Michael addition, intramolecular
通过易得的芳族和杂芳族醛N-烷基-2的独特三组分反应,开发了一种方便,快速且对环境有益的方法,用于合成一系列新的高度官能化的N-烷基化
吡啶作为优先药用支架-
氰基乙酰胺和
丙腈在K 2 CO 3作为碱助催化剂存在下于微波辐射下在
乙醇中。推测所提出的串联过程是通过Knoevenagel缩合,Michael加成,分子内环化,自氧化和随后的芳构化进行的。该方案特别有价值的功能,包括高产品收率,温和的条件,原子效率,简单的执行,较短的反应时间和易于纯化,使其成为制备取代
吡啶核的高效且有希望的合成策略。