Gold(I)-Catalyzed Tandem Cycloisomerization and Fluorination of 1,3(4)-Enyne Esters with NFSI: One-Pot Assembly of 5-Fluoro- Cyclopentenones
作者:Xianxiao Chen、Yuanyuan Zhou、Mei Hong、Yuan Ling、Dongliang Yin、Shifa Wang、Xiaoxiang Zhang、Weidong Rao
DOI:10.1002/adsc.201800701
日期:2018.10.4
An efficient synthetic approach for the synthesis of 5‐fluoro‐cyclopentenones containing a fluorine‐substituted carbon stereocenter that relies on gold(I)‐catalyzed cycloisomerization and fluorination sequence of 1,3(4)‐enyne esters with N‐fluorbenzensulfonimide (NFSI) is described. This tandem transformation exhibited a broad substrate scope and excellent functional group compatibility, providing
一种有效的合成方法,其合成一个含氟取代的碳立构中心的5-氟-环戊烯酮,该中心依赖于金(I)催化的1,3(4)-烯炔酯与N-氟苯甲磺酰亚胺(NFSI)的环异构化和氟化序列描述。这种串联转化表现出广泛的底物范围和出色的官能团相容性,为在温和的反应条件下以良好或优异的产率快速组装5-氟-环戊烯酮提供了一种新颖的方案。机理研究表明,转化涉及金催化的环异构化和亲电氟化级联反应,生成5-氟-环戊烯酮。