title: Stereoselective synthesis of cyclic ethers by intramolecular trapping of dicobalt hexacarbonyl-stabilized propargylic cations.
abstract: The intramolecular attack of a hydroxy group on an exo-biscobalthexacarbonyl propargylic cation provides cyclic ethers with six- to nine-membered rings. The scope and limitations of the methodology are described. The reaction is stereoselective when additional stereocenters are present, providing iterative methodology to access ladder-like cyclic ethers.
authors.affiliation: Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, C/Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain.
authors.forename: Juan M
authors.initials: JM
authors.lastname: Betancort
authors.forename: Tomás
authors.initials: T
authors.lastname: Martín
authors.forename: José M
authors.initials: JM
authors.lastname: Palazón
authors.forename: Víctor S
authors.initials: VS
authors.lastname: Martín