Ring Expansions Within the Gold-Catalyzed Cycloisomerization of<i>O</i>-Tethered 1,6-Enynes. Application to the Synthesis of Natural-Product-like Macrocycles
作者:Antoine Simonneau、Youssef Harrak、Louis Jeanne-Julien、Gilles Lemière、Virginie Mouriès-Mansuy、Jean-Philippe Goddard、Max Malacria、Louis Fensterbank
DOI:10.1002/cctc.201200484
日期:2013.5
Goldenyne: O‐tethered 1,6‐enynes that contain a strained ring at the 3 position can cycloisomerize upon cationic gold(I) catalysis through a ring‐expansion process. A two‐step sequence allows the transformation of the cyclized compounds into ketomacrolactones, which are reminiscent of natural products.
Goldenyne: 在3位上带有应变环的O系1,6-烯炔可以通过扩环过程在阳离子金(I)催化下进行环异构化。分两步进行,可将环化的化合物转化为酮康内酯,使人联想到天然产物。