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Synthesis of a Palladium(IV) Complex by Oxidative Addition of an Aryl Halide to Palladium(II) and Its Use as Precatalyst in a CC Coupling Reaction
Author(s) -
Vicente José,
Arcas Aurelia,
JuliáHernández Francisco,
Bautista Delia
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201102214
Four's a charm : Complex 1 ⋅OAc (see scheme) reacts with 2‐iodobenzoic acid to afford the stable Pd IV complexes 2 a and 2 b . Complexes 2 are precatalysts for the orthovinylation of 2‐iodobenzoic acid with CH 2 CHCO 2 Me and AgClO 4 at room temperature. The reaction is not quenched by excess Hg nor does it afford dibenzyl in the presence of benzyl chloride, suggesting that neither Pd nanoparticles nor a Pd 0 complex are involved.