Base-Stabilized Phosphinidene Boranes by Silylium-Ion Abstraction.

Published in: Chemistry (Weinheim an der Bergstrasse, Germany) (2016)

We report the preparation of N-heterocyclic carbene (NHC)-stabilized compounds containing P=B double bonds. The reaction of the highly functionalized phosphinoborane Mes*(SiMe3 )P-B(Cl)Cp* with Lewis bases allows access to base-stabilized phosphinidene boranes Mes*P=B(L)Cp* (L=4-dimethylaminopyridine (DMAP), NHC) by Me3 SiCl elimination. The formation of these species is shown to proceed through transient borylphosphide anions generated by Me3 Si abstraction.

Keyphrases

molecularly imprinted
ionic liquid
cerebral ischemia
room temperature
electron transfer
tandem mass spectrometry