INVESTIGATIONS ON SYNTHESES AND REACTIONS OF FLUOROPHENYLMERCURY COMPOUNDS WITH THE LIGANDS 2-FC6H4, 2,6-F2C6H3, AND 2,4,6-F3C6H2

2,6-F2C6H3HgCl and 2,4,6-F3C6H2HgCl are synthesized via the reactions of the corresponding phenylmagnesium compounds and HgCl2. 2-FC6H4HgCl is selectively obtained only in a reaction involving intermediately fo rmed Cd(2-FC6H4)(2). The diphenylmercury derivative Hg(2,4,6-F3C6H2)(2 ) is Obtained while stirring a dichloromethane solution of 2,4,6-F3C6H 2HgCl for several days. The direct mercuration of 1,3,5-trifluorobenze ne with Hg(OCOCF3)(2) yields, depending on the stoichiometry, 2,4,6-tr ifluorophenylmercury trifluoroacetate and 1,3 is(trifluoroacetatomercu ri)-2,4,6-trifluorobenzene which is converted into the corresponding c hloromercuri derivative by treatment with hydrochloric acid in CH3CN. As a product of the reaction of 1,3,5-trifluorobenzene and HgO in CH3C OOH only 2,4,6-trifluorophenylmercury acetate is isolated although spe ctroscopic evidence has been found for double and triple mercurated de rivatives. All compounds are characterized by elemental analyses, nmr and mass spectra. The reaction of Hg(2,4,6-F3C6H2)Cl and Cd(CF3)(2) . 2 CH3CN gives Hg(2,4,6-F3C6H2)CF3 which slowly dismutates in CH2Cl2 so lution into Hg(2,4,6-F3C6H2)(2) and Hg(CF3)(2). The ligand exchange of Hg(2,4,6-F3C6H2)(2) and TeCl4 selectively gives Te(2,4,6-F3C6H2)(2)Cl -2 and Hg(2,4,6-F3C6H2)Cl. Transmetalations of Hg(2,4,6-F3C6H2)(2) and gallium or tin give NMR spectroscopic evidence for the new derivates Ga(2,4,6-F3C6H2)(3) and Sn(2,4,6-F3C6H2)(4).