title: N-heterocyclic carbene-catalyzed cascade reaction involving the hydroacylation of unactivated alkynes.
abstract: The N-heterocyclic carbene (NHC)-catalyzed hydroacylation of unactivated alkynes to provide alpha,beta-unsaturated ketones is reported. In addition, a rare case of an efficient and selective dually NHC-catalyzed cascade reaction involving the hydroacylation of alkynes and a subsequent intermolecular Stetter reaction allows the formation of chromanones containing a 1,4-diketone moiety.
authors.affiliation: Organisch-Chemisches Institut der Westfälischen Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany.
authors.forename: Akkattu T
authors.initials: AT
authors.lastname: Biju
authors.forename: Nathalie E
authors.initials: NE
authors.lastname: Wurz
authors.forename: Frank
authors.initials: F
authors.lastname: Glorius