Lithiation of R2SiFPRH (R = Me3C throughout this abstr.) with BuLi in hexane-THF gave 90% title compd. R2SiFPLi(THF)3R (I). Reaction of I with halosilanes gave R2SiFPRR1 (R1 = SiMe3, SiMeCl2, SiCl3, SiF2Ph). Similarly were prepd. R2SiFPRBFN(SiMe3)2 and (R2SiFPR)2SiClMe from the reaction of I with F2BN(SiMe3)2 or R2SiFPRSiMeCl2. R2SiFPRR1 (R1 = SiMeCl2, SiMe3) undergo rearrangement via chloro-fluoro exchange reaction to give R2SiClPRSiFClR2 (R2 = Me, Cl). The crystal structure of I was detd.