title: Synthesis of bridged medium-sized rings through the intramolecular Pauson-Khand reaction.
abstract: [reaction: see text] A series of aromatic enynes containing steric buttressing elements were prepared and evaluated in the NMO-mediated Pauson-Khand cyclization. O-Allyl systems led to the expected angularly fused products, whereas the O-butenyl and O-pentenyl derivatives afforded the unprecedented bridge systems.
authors.affiliation: Department of Chemistry & Biochemistry, University of Texas at Arlington, Arlington, TX 76019, USA. lovely@uta.edu
authors.forename: C J
authors.initials: CJ
authors.lastname: Lovely
authors.forename: H
authors.initials: H
authors.lastname: Seshadri
authors.forename: B R
authors.initials: BR
authors.lastname: Wayland
authors.forename: A W
authors.initials: AW
authors.lastname: Cordes