作者:Cole A. Witham、Pablo Mauleón、Nathan D. Shapiro、Benjamin D. Sherry、F. Dean Toste
DOI:10.1021/ja071231+
日期:2007.5.1
A series of gold(I)-catalyzed oxidative rearrangement reactions of alkynes using sulfoxides as stoichiometric oxidants are reported. The reactions are postulated to proceed through intermolecular oxygen atom transfer from the sulfoxide to gold(I)−carbenoid intermediates. Under the conditions for gold(I)-catalyzed oxidative rearrangement, 1,6-enynes are isomerized to cyclopropyl aldehydes, homopropargyl