Total Synthesis of Laurane and Guaiane Sesquiterpenoids via Oxidative Nazarov Reaction
作者:Yuye Chen、Wenqing Chen、Zhiting Zhang、Jing Xu
DOI:10.1002/cjoc.202400014
日期:——
natural products, cyclopentenones usually can be fabricated by Nazarov cyclization using divinyl ketones or functionalized tertiary divinyl carbinols (TDCs) as substrates. However, straightforward method for transforming unfunctionalized TDCs to their corresponding cyclopentenones is currently lacking. Herein, we wish to report the total syntheses of four structurally distinct terpenoids, namely laurane-type
作为天然产物中最常见的结构基序之一,环戊烯酮通常可以使用二乙烯基酮或功能化叔二乙烯基甲醇(TDC)作为底物通过纳扎罗夫环化来制备。然而,目前缺乏将未功能化的 TDC 转化为其相应环戊烯酮的直接方法。在此,我们希望报告四种结构不同的萜类化合物的全合成,即月桂烷型海洋倍半萜类异月桂烯、去溴海兔素和海兔素,以及愈创木烷倍半萜类愈创木二烯酮A,所有这些都使用一种新颖的合成方法,称为氧化纳扎罗夫环化作为关键步骤。这项工作证明了我们稳健的方法适用于合成各种高度取代的环戊烯酮。