title: Phosphirenium-borate zwitterion: formation in the 1,1-carboboration reaction of phosphinylalkynes.
abstract: Reaction of the acetylene Mes(2)P-C≡C-Ar with B(C(6)F(5))(3) at rt gives a zwitterionic phosphirenium product, which reacts further at >100 °C to complete the 1,1-carboboration reaction.
authors.affiliation: Organisch-Chemisches Institut, Universität Münster, Corrensstrasse 40, D-48149 Münster, Germany.
authors.forename: Olga
authors.initials: O
authors.lastname: Ekkert
authors.forename: Gerald
authors.initials: G
authors.lastname: Kehr
authors.forename: Roland
authors.initials: R
authors.lastname: Fröhlich
authors.forename: Gerhard
authors.initials: G
authors.lastname: Erker