title: Direct carbocyclization of aldehydes with alkynes: combining gold catalysis with aminocatalysis.
abstract: A combination of gold(I) complexes and amine bases catalyzes the 5-exo-dig cyclization of formyl alkynes. This direct alpha-functionalization of aldehydes with unactivated alkynes does not involve the use of preformed enol equivalents.
authors.affiliation: Department Chemie, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching, Germany.
authors.forename: Jörg T
authors.initials: JT
authors.lastname: Binder
authors.forename: Benedikt
authors.initials: B
authors.lastname: Crone
authors.forename: Timm T
authors.initials: TT
authors.lastname: Haug
authors.forename: Helge
authors.initials: H
authors.lastname: Menz
authors.forename: Stefan F
authors.initials: SF
authors.lastname: Kirsch