Unprecedented combination of regioselective hydrodefluorination and ligand exchange reaction during the syntheses of tris-cyclometalated iridium(III) complexes

作者：Lepeltier Marc; Dumur Frederic^*; Marrot Jerome; Contal Emmanuel; Bertin Denis; Gigmes Didier; Mayer Cedric R

来源：Dalton Transactions, 2013, 42(13): 4479-4486.

DOI：10.1039/c2dt32071a

The first reported combination of regioselective hydro-defluorination and a ligand exchange reaction during the syntheses of neutral iridium(III) complexes is presented. Surprisingly, loss of one fluorine atom per ligand combined with a complete ligand exchange reaction on the transition metal were jointly observed during a bridge-splitting and substitution reaction of two different dimeric iridium(III) precursor complexes with two different ancillary ligands. The regioselectivity of defluorination was evidenced in both cases. The reaction time was identified as a factor strongly impacting the kinetics of the thermally induced reaction.

• 出版日期2013