Au(I)-Catalyzed Ring Expanding Cycloisomerizations: Total Synthesis of Ventricosene
作者:Steven G. Sethofer、Steven T. Staben、Olivia Y. Hung、F. Dean Toste
DOI:10.1021/ol801760w
日期:2008.10.2
The gold(I)-catalyzed cycloisomerization of enynes containing an embedded cyclopropane unit leads selectively to the formation of ring systems containing the cyclopropylmethyl cation. A subsequent Wagner-Merwein shift provides diastereomerically pure fused cyclobutanes. The utility of this methodology for the rapid assembly of polycyclic ring systems is illustrated by the total synthesis of the angular