Phosphirenium-borate zwitterion: formation in the 1,1-carboboration reaction of phosphinylalkynes†‡
Olga Ekkert,Gerald Kehr,Roland Fröhlich,Gerhard Erker
Chemical Communications Pub Date : 08/22/2011 00:00:00 , DOI:10.1039/C1CC13008K
Abstract
Reaction of the acetylene Mes2P–CC–Ar with B(C6F5)3 at rt gives a zwitterionic phosphirenium product, which reacts further at >100 °C to complete the 1,1-carboboration reaction.
![[triple bond, length as m-dash]](http://www.rsc.org/images/entities/char_e002.gif)
C–Ar with B(C6F5)3 at rt gives a zwitterionic phosphirenium product, which reacts further at >100 °C to complete the 1,1-carboboration reaction.
