Direct syntheses of tetramethylammonium salts of complex fluoroanions
摘要:
The tetramethylammonium salts of BF4-, PF6-, SiF5-, SiF62-, GeF5- and GeF62- were prepared in high yields by direct synthesis from N(CH3)(3), CH3F and the corresponding Lewis acid at elevated temperature and pressure. Attempts to prepare anhydrous N(CH3)(4)F directly from N(CH3)(3) and CH3F at elevated temperature and pressure or by pyrolysis of some of the above tetramethylammonium complex fluoroanion salts were unsuccessful. (C) 1997 Elsevier Science S.A.