作者:Nazario Martin、Carlos Seoane、José L. Soto
DOI:10.1016/s0040-4020(01)81443-5
日期:1988.1
A novel,one step synthesis of pyrano[2,3-b]pyri-dines from malononitrile and unsaturated ketones is reported. The reaction mechanism is discussed and takes place through an intermediate monocyclic 4H-pyran.Several derivatives with different substitution patterns are prepared.
报道了一种由丙二腈和不饱和酮合成吡喃并[2,3-b]吡啶二酮的新方法。讨论了该反应机理,并通过中间体单环4H-吡喃进行了反应。制备了几种具有不同取代方式的衍生物。