title: Regioselectivities in alkyne activation: synthesis of 2-(bicyclo[3.1.0]hexan-1-yl)furan derivatives by Au-catalyzed cyclization and cyclopropanation.
abstract: 2-Alkynyl-1-cycloalkenecarbaldehydes, in the presence of gold catalysts, undergo aurative cyclization via the 5-exo-dig mode to form Au-carbene intermediates which react with a double bond to form the corresponding cyclopropanes.
authors.affiliation: Department of Chemistry, Hanyang University, Haengdang-17, Sungdong-Gu, Seoul 133-791, Korea. changho@hanyang.ac.kr
authors.forename: Chang Ho
authors.initials: CH
authors.lastname: Oh
authors.forename: Su Jin
authors.initials: SJ
authors.lastname: Lee
authors.forename: Ji Ho
authors.initials: JH
authors.lastname: Lee
authors.forename: Yoon Jung
authors.initials: YJ
authors.lastname: Na