title: On the importance of leaving group ability in reactions of ammonium, oxonium, phosphonium, and sulfonium ylides.
authors.affiliation: School of Chemistry, University of Bristol, Cantock's Close, UK. v.aggarwal@bristol.ac.uk
authors.forename: Varinder K
authors.initials: VK
authors.lastname: Aggarwal
authors.forename: Jeremy N
authors.initials: JN
authors.lastname: Harvey
authors.forename: Raphaël
authors.initials: R
authors.lastname: Robiette