title: Azulenesulfonium Salts: Accessible, Stable, and Versatile Reagents for Cross-Coupling.
abstract: Azulenesulfonium salts may be readily prepared from the corresponding azulenes by an SE Ar reaction. These azulene sulfonium salts are bench-stable species that may be employed as pseudohalides for cross-coupling. Specifically, their application in Suzuki-Miyaura reactions has been demonstrated with a diverse selection of coupling partners. These azulenesulfonium salts possess significant advantages in comparison with the corresponding azulenyl halides, which are known to be unstable and difficult to prepare in pure form.
authors.affiliation: Department of Chemistry, University of Bath, Bath, BA2 7AY, UK. p.cowper@bath.ac.uk.
authors.forename: Paul
authors.initials: P
authors.lastname: Cowper
authors.affiliation: Department of Chemistry, University of Bath, Bath, BA2 7AY, UK.
authors.forename: Yu
authors.initials: Y
authors.lastname: Jin
authors.affiliation: Department of Chemistry, University of Bath, Bath, BA2 7AY, UK.
authors.forename: Michael D
authors.initials: MD
authors.lastname: Turton
authors.affiliation: Chemical Characterisation and Analysis Facility, University of Bath, Bath, BA2 7AY, UK.
authors.forename: Gabriele
authors.initials: G
authors.lastname: Kociok-Köhn
authors.affiliation: Department of Chemistry, University of Bath, Bath, BA2 7AY, UK. s.e.lewis@bath.ac.uk.
authors.forename: Simon E
authors.identifier: http://orcid.org/0000-0003-4555-4907
authors.initials: SE
authors.lastname: Lewis
keywords: Suzuki-Miyaura cross-coupling; azulenes; sulfonium salts; sulfoxides; synthetic methods