An unusual norcaradiene/tropylium rearrangement from a persistent amino-phosphonio-carbene.
An amino-phosphonio-carbene featuring a bromobiphenyl backbone was prepared and spectroscopically characterized at low temperature. This carbene was found to readily rearrange upon warm up, affording an original tricyclic phospholium derivative, presumably via a norcaradiene/tropylium isomerization.
Vignolle
Joan
J
Laboratoire Hétérochimie Fondamentale et Appliquée du CNRS (UMR 5069), Université Paul Sabatier, 118, route de Narbonne, 31062 Toulouse Cedex 9, France.
Donnadieu
Bruno
B
Bourissou
Didier
D
Bertrand
Guy
G