Abstract: The transformations of organic molecules with F-TEDA-BF 4 (1) were investigated in the hydrophilic ionic liquid (IL) 1-butyl-3-methyl-imidazolium tetrafluoroborate ([bmim][BF 4], 2) and the hydrophobic IL 1-butyl-3-methyl-imidazolium hexafluorophosphate ([bmim][PF 6], 3). The range of substrates included alkyl substituted phenols 4a-c, 9, 13, 1, 1- diphenylethene (15), alkyl aryl ketones 19-22, aldehydes 23-25 and methoxy-substituted ...