Fluorine is typically nearly impossible to remove from organic molecules. But there are at least
three ways of doing it.
researchers [Alan Goldman] at Rutgers University in New Jersey have cracked the problem by using a catalyst based on an iridium centre clamped between two bulky dialkylphosphino groups - a so-called pincer-ligated complex.
http://www.rsc.org/chemistryworld/News/2011/June/23061103.asp Sodium hydride, in the presence of catalytic quantities of nickel acetate and sodium isopropylate, can reduce aryl fluorides (such as p-fluorotoluene) under mild conditions. 90% conversion in 3 hours, 100% within 7 hours. It is important that the nano-sized particulate NaH be used, for maximum surface area.
"An effective method for the hydrodehalogenation of organic halides", Haiqing Li, Shijian Liao, Yun Xu, Daorong Yu and Zhiming Qiao http://www.springerlink.com/content/84ql762532j36m60/strong fluorine abductors (such as BF3 or SbF5) can work through the transient formation of the carbenium ion ion, but this can be very hazardous and impractical. (remember that the resulting alkylating agents from the reaction can be deadly, it would be much like working with magic methyl)
CH3F + SbF5 --> CH3+ + SbF6[-]
CH3+ + acetate[-] --> methyl acetate ester