Synthetic Studies toward the Tetrapetalones: Diastereoselective Construction of a Putative Intermediate
Organic Letters(2018)
摘要
A strategy toward tetrapetalones was explored including a site-selective ethylenation of the silyl enol ether A to afford a quaternary stereocenter that serves in a stereogenic capacity. Regio- and diastereoselective reactions were observed in conjunction with the oxidative formation of cation B, which included subsequent selective formation of either carbon–oxygen or carbon–carbon bonds at the δ or ζ position on the seven-membered ring. The fourth ring was formed using a Stetter reaction.
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关键词
tetrapetalones,synthetic studies,diastereoselective construction
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