Ruthenium catalyzed enyne cycloisomerizations and hydroxycyclizations with skeletal rearrangement
作者:J.W. Faller、Philip P. Fontaine
DOI:10.1016/j.jorganchem.2006.01.009
日期:2006.4
A neutral arene-tethered ruthenium complex was found to be a catalyst precursor for enyne cycloisomerizations and hydroxycyclizations. The observed products were the result of a skeletal rearrangement process, and include an unusual cyclization to form a six-membered ring. Labeling studies on the six-membered ring product are in accord with an electrophilic activation mechanism that proceeds via cationic