Unique Michael Addition-Initiated Domino Reaction for the Stereoselective Synthesis of Functionalized Macrolactones from α-Nitroketones in Water
作者:Giorgio Giorgi、Sonia Miranda、Pilar López-Alvarado、Carmen Avendaño、Jean Rodriguez、J. Carlos Menéndez
DOI:10.1021/ol0505860
日期:2005.5.1
beta-unsaturated aldehydes in aqueous base was discovered, leading to the one-pot synthesis of hitherto unknown functionalized, bridged, bicyclic lactones containing 10-, 11-, 13-, and 15-membered rings. The structures of these heterocyclic compounds, containing also an unusual 6-hydroxy-1,2-oxazine ring, were determined by spectral and single-crystal X-ray diffraction studies.
[反应:请参见文字]。发现了α-硝基环烷酮与碱在水溶液中的α-烷基α,β-不饱和醛发生独特的多米诺反应,导致迄今未知的功能化,桥连,双环内酯的一锅合成,其中内含10-,11-,13-,和15元环。通过光谱和单晶X射线衍射研究确定了这些杂环化合物的结构,其中还包含一个不寻常的6-羟基-1,2-恶嗪环。