The Skeletal Rearrangement of Gold- and Platinum-Catalyzed Cycloisomerization of <i>cis</i>-4,6-Dien-1-yn-3-ols: Pinacol Rearrangement and Formation of Bicyclo[4.1.0]heptenone and Reorganized Styrene Derivatives
作者:Jhih-Meng Tang、Sabyasachi Bhunia、Shariar Md. Abu Sohel、Ming-Yuan Lin、Hsin-Yi Liao、Swarup Datta、Arindam Das、Rai-Shung Liu
DOI:10.1021/ja076175r
日期:2007.12.1
cyclized products chemoselectively. The AuCl3-catalyzed cyclizations of 6-substituted cis-4,6-dien-1-yn-3-ols proceeded via a 6-exo-dig pathway to give allyl cations, which subsequently undergo a pinacol rearrangement to produce reorganized cyclopentenyl aldehyde products. Using chiral alcohol substrates, such cyclizations proceed with reasonable chirality transfer. In the PtCl2-catalyzed cyclization of