title: Claisen-type condensation of vinylogous acyl triflates.
abstract: [reaction: see text] The Claisen-type condensation reaction of cyclic vinylogous carboxylic acid triflates with lithium enolates and their analogues produces acyclic alkynes bearing a 1,3-diketone-type moiety. The present transformation is proposed to proceed via a 1,2-addition of the enolate to the vinylogous acyl triflate, followed by fragmentation of the aldolate intermediate.
authors.affiliation: Department of Chemistry and Biochemistry, Florida State University, Tallahassee, 32306-4390, USA.
authors.forename: Shin
authors.initials: S
authors.lastname: Kamijo
authors.forename: Gregory B
authors.initials: GB
authors.lastname: Dudley