title: Barluenga's reagent with HBF4as an efficient catalyst for alkyne-carbonyl metathesis of unactivated alkynes.
abstract: Barluenga's reagent (IPy2BF4, Py = pyridine) treated with HBF4efficiently catalyzes the inter- and intramolecular alkyne-carbonyl metathesis of unactivated alkynes with aldehydes or ketones, most of which proceed at room temperature. This work represents the first catalytic application of the Barluenga's reagent.
authors.affiliation: Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan. akio-sai@cc.tuat.ac.jp.
authors.forename: Kosuke
authors.initials: K
authors.lastname: Murai
authors.affiliation: Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan. akio-sai@cc.tuat.ac.jp.
authors.forename: Keiichiro
authors.initials: K
authors.lastname: Tateishi
authors.affiliation: Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan. akio-sai@cc.tuat.ac.jp.
authors.forename: Akio
authors.identifier: http://orcid.org/0000-0002-8291-2059
authors.initials: A
authors.lastname: Saito