Carbonyl Difluoride: Reactions with Metal-Phosphine Complexes

摘要

Carbonyl difluoride (COF2) is a versatile and nondestructive fluorine-transferreagent as demonstrated by the ready introduction of fluorine into a variety of P-H, N-H or C-H containing compounds. Furthermore, metal oxides may be converted into metal fluorides of high purity using COF2. Christie et al have shown that FCl03 can be prepared by using COF2 with alkali metal chlorates, MC103. While we have observed that some phosphines are easily oxidatively fluorinated with COF2, attempts to oxidatively fluorinate PF3, PCl3, and PCl2 with COF2 failed. This was attributed to the high electronegativity of the atoms groups bound to phosphorus. In this study we report the oxidative fluorination of phosphines via decomposition of a selected group of nickel phosphine complexes.