title: The [4+2], not [2+2], mechanism occurs in the gold-catalyzed intramolecular oxygen transfer reaction of 2-alkynyl-1,5-diketones.
authors.affiliation: Department of Chemistry, University of Louisville, 2320 South Brook Street, Louisville, KY 40292, USA. leping.liu@louisville.edu
authors.forename: Le-Ping
authors.initials: LP
authors.lastname: Liu
authors.forename: Deepika
authors.initials: D
authors.lastname: Malhotra
authors.forename: Robert S
authors.initials: RS
authors.lastname: Paton
authors.forename: K N
authors.initials: KN
authors.lastname: Houk
authors.forename: Gerald B
authors.initials: GB
authors.lastname: Hammond