Journal
JOURNAL OF ORGANOMETALLIC CHEMISTRY
Volume 691, Issue 9, Pages 1912-1918Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2006.01.009
Keywords
carbene; cycloisomerization; enyne
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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 cyclopropyl carbene intermediates. (c) 2006 Elsevier B.V. All rights reserved.
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