作者:Sunil K. Rai、Shaziya Khanam、Ranjana S. Khanna、Ashish K. Tewari
DOI:10.1039/c4ra06619g
日期:——
Microwave assisted non-catalytic condensation of 2-cyanoacetamide with aromatic aldehydes, and enolate mediated Michael-type addition to acrylamide followed by oxidative cyclization, produce 2-pyridones in good to excellent yield. Unsymmetrical ketones produce two regioisomeric enolates, therefore thermodynamic and kinetic products of butan-2-one and pentan-2-one have been isolated and fully characterized.
在微波辅助下,2-氰乙酰胺与芳香醛发生非催化缩合反应,并与丙烯酰胺发生由烯酸酯介导的迈克尔式加成反应,随后发生氧化环化反应,从而以良好至极佳的收率生成 2-吡啶酮。不对称酮会产生两种烯醇异构体,因此丁-2-酮和戊-2-酮的热力学和动力学产物已被分离出来并完全定性。