Spirohexadienone is a structural moiety present in several biologically active natural products isolated both from terrestrial and marine natural sources. This structural moiety is commonly and strictly related to the biological properties exhibited by the natural products. We show herein that the combination of intermolecular Heck reactions with a phenolic oxidation induced by hypervalent iodine form these structural moieties from Morita-Baylis-Hillman adducts in moderate to good overall yields.
Spirohexadienone是一种结构片段,存在于从陆地和海洋自然来源中提取的几种
生物活性天然产品中。这种结构片段通常与天然产品所表现的
生物特性密切相关。我们在此展示,将分子间的Heck反应与高价
碘诱导的
酚氧化相结合,可以从Morita-Baylis-Hillman加合物中形成这些结构片段,整体产率中等至良好。