Author/Authors :
Zunino، نويسنده , , Fabien and Liu، نويسنده , , Fei and Berrier، نويسنده , , Christian and Martin-Mingot، نويسنده , , Agnès and Thibaudeau، نويسنده , , Sébastien and Jouannetaud، نويسنده , , Marie-Paule and Jacquesy، نويسنده , , Jean-Claude and Bachmann، نويسنده , , Christian، نويسنده ,
Abstract :
In HF/SbF5, in the presence of CCl4 or NBS, unsaturated or hydroxylated piperidines yield difluoroanalogues in good yields. The ability to perform hydride abstraction on chloroderivatives, and the ability to form bridged bromonium ions from unsaturated substrates seem to completely influence the reaction course. Some aspects of the mechanism were clarified by DFT calculations.
Keywords :
Superacid , Difluorination , Nitrogen containing compounds , Halonium ions
