Synthesis of Tri- and Tetracoordinate Phosphorus Compounds Containing a PCF3 Group by Nucleophilic Trifluoromethylation of the Corresponding PF Compounds

A new way of forming P−C bonds: Catalytic amounts of F− ions facilitate the reaction of PIII−F compounds with CF3SiMe3 to give PIII−CF3 compounds (see scheme). These compounds can also be obtained in a one‐pot procedure from PIII−OAr precursors (also shown).