Direct Involvement of the Acetato Ligand in the Reductive Elimination Step of Rhodium-Catalyzed Methanol Carbonylation

Nicolas Lassauque (1) , Thomas Davin (2) , Duc Hanh Nguyen (1) , Romain Adcock (1) , Yannick Coppel (1) , Carole Le Berre (1) , Philippe Serp (1) , Laurent Maron (2) , Philippe Kalck (2)

1 LCC - Laboratoire de chimie de coordination
2 LPCNO - Laboratoire de physique et chimie des nano-objets

For the last step of rhodium-catalyzed methanol carbonylation, high-pressure NMR, and kinetic and experimental data supported by density functional theory calculations are consistent with substitution of I– by an AcO– ligand on the [RhI3(COCH3)(CO)2]− species followed by reductive elimination of acetic anhydride, which immediately reacts with water to afford acetic acid.

Domaines: Chimie de coordination

Nicolas Lassauque, Thomas Davin, Duc Hanh Nguyen, Romain Adcock, Yannick Coppel, et al.. Direct Involvement of the Acetato Ligand in the Reductive Elimination Step of Rhodium-Catalyzed Methanol Carbonylation. Inorganic Chemistry, 2011, 51 (1), pp.4-6. ⟨10.1021/ic201574m⟩. ⟨hal-02910011⟩