Electrophilic C–H activation of benzene with a Shilov-inspired rhodium(III) diimine complex
作者： James Kovach , William W. Brennessel , William D. Jones
DOI: 10.1016/J.JORGANCHEM.2015.05.005
关键词:
摘要: Abstract Four new air and water stable, organometallic rhodium(III) complexes trans-RhIII(α-diimine) (CO)I2Me, 1, [RhIII(α-diimine) (C(O)Me) (H2O)3][BF4]2, 2, [RhIII(α-diimine)Me(H2O)3] [BF4]2, 3, RhIII(α-diimine) (H2O) (OC(O)CF3)2, 4 (α-diimine = 1,4-bis(Ar)-2,3-dimethyl-1,4-diaza-1,3-butadiene, Ar = 3,5-dimethylphenyl) were synthesized characterized by X-ray crystallography. H/D exchange of C6H6 with TFA-d1 (TFA = trifluoroacetic acid) was observed 4 mol% loading 3 at 100 °C 137 turnovers (98% completion at 91% deuterium incorporation) in 24 h. 3 showed sustained catalytic activity towards benzene even after three iterations catalyst recycling.
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