Molecular Diversity of Tonghaosu Analogues, Selective Oxidation of the exo-Cyclic Double Bond of Spiroacetal Enol Ethers and Diasteroselective Synthesis of Spiro-Pyranone
作者:Biaolin Yin、Jinqiang Lai、Zeren Zhang、Yulin Wu
DOI:10.1002/cjoc.201190000
日期:2010.12
Two methods including NBS/AgNO3 system and MCPBA oxidation have been developed for the selective oxidations of the exo‐cyclic double bond of spiroacetal enol ethers 2 with multi reactive sites into spiro‐pyanones 3 and 4. In addition, possible mechanisms for these conversions are proposed.
两种方法包括NBS /的AgNO 3系统和MCPBA氧化已经开发了用于将选择性氧化外螺缩醛烯醇-环双键醚类2具有多活性位点引入螺pyanones 3和4。另外,提出了用于这些转换的可能机制。