Further Study of Methanol Carbonylation Catalyzed by Cobalt, Rhodium, and Iridium Catalysts
نویسندگان
چکیده
منابع مشابه
Cobalt-Catalyzed Direct Carbonylation of Aminoquinoline Benzamides
A method for direct carbonylation of aminoquinoline benzamides has been developed. Reactions proceed at room temperature in trifluoroethanol solvent, use oxygen from air as an oxidant, and require Mn(OAc)3 as a cocatalyst. Benzoic and acrylic acid derivatives can be carbonylated by carbon monoxide affording imides in good yields. Halogen, nitro, ether, cyano, and ester functional groups are tol...
متن کاملKinetic Study, Modeling and Simulation of Homogeneous Rhodium-Catalyzed Methanol arbonylation to Acetic Acid
Thermodynamic restrictions and simultaneous effects of operational conditions on the homogeneous rhodium-catalyzed carbonylation of methanol are studied in this line of research. It is shown that the general NRTL-Virial model can be appropriated to study thermodynamics of the carbonylation. It is obtained that the reaction is kinetically and thermodynamically reasonable at temperatures abov...
متن کاملRhodium(III)-catalyzed oxidative carbonylation of benzamides with carbon monoxide.
An efficient strategy for the oxidative carbonylation of aromatic amides via C-H/N-H activation to form phthalimides using an Rh(III) catalyst has been developed. The reaction shows a preference for C-H bonds of electron-rich aromatic amides and tolerates a variety of functional groups.
متن کاملOn the importance of electronic and steric effects in the migratory CO insertion step of rhodium–diphosphine catalyzed methanol carbonylation†
To provide further insight into electronic and steric factors and to quantify their relative importance, we studied in detail the migratory CO insertion step for RhMe(CO)I2(L–L) systems (L–L = dppms (PPh2CH2P(S)Ph2) or dppe (PPh2CH2CH2PPh2)), Monsanto catalysts and some electronically unsymmetrical diphosphine model systems. The difference in the reaction rates of dppms and dppe has a clear ele...
متن کاملA theoretical study of steric and electronic effects in the rhodium-catalyzed carbonylation reactions.
We present a QM and QM/MM study of steric and electronic effects in the main steps of Rh-catalyzed carbonylation reactions. All the considered systems adopt a square-planar geometry prior to CH(3)I oxidative addition. As regards the octahedral complexes after CH(3)I oxidative addition, a comparison between the various models indicates that the energy gain due to the CH(3)I oxidative addition is...
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1979
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.52.479