One-Pot Stereoselective Synthesis of (<i>Z</i>)-β-Ketoenamides from β-Halo α,β-Unsaturated Aldehydes
作者:Junali Gogoi、Pranjal Gogoi、Romesh C. Boruah
DOI:10.1002/ejoc.201400007
日期:2014.6
β-ketoenamides have been synthesized from their corresponding β-halo α,β-unsaturated aldehydes. This synthetic methodology provides efficient access to (Z)-β-ketoenamides. The structures of these products have been unambiguously established by single crystal XRD studies. This process is found to be mild and inexpensive. The required β-halo α,β-unsaturated aldehydes are synthesized from corresponding ketones using
一系列甾体和非甾体 β-酮烯酰胺已由它们相应的 β-卤代 α,β-不饱和醛合成。这种合成方法提供了对 (Z)-β-酮烯酰胺的有效访问。这些产品的结构已通过单晶 XRD 研究明确确定。这个过程被发现是温和且廉价的。使用 Vilsmeier 甲酰化反应从相应的酮合成所需的 β-卤代 α,β-不饱和醛。其中一种制备的 β-酮烯酰胺被转化为其相应的 2-氨基二氢异喹啉衍生物。