6533b835fe1ef96bd129f5d4

RESEARCH PRODUCT

Catalytic systems based on transition metals for the carbonylation of methanol to dimethylcarbonate

Giuseppe SilvestriGiuseppe FilardoFranco RivettiOnofrio ScialdoneAlessandro Galia

subject

General Chemical EngineeringInorganic chemistryPrimary alcoholElectrosynthesisMedicinal chemistryCatalysischemistry.chemical_compoundTransition metalchemistryElectrochemistryMethanolTriphenylphosphineCarbonylationCarbon monoxide

description

Abstract The results of an investigation on catalytic systems arising from the electrochemical activation of salts and complexes of several transition metals for the carbonylation of methanol to dimethylcarbonate (DMC) are reported. Metals were tested as inorganic salts or complexes with ligands such as 2,2′-bipyridine (bipy), 1,6-bis (2-oxyphenyl)-2,5-diaza-1,5-hexadiene (salen), 2,4-pentanedionate (acac), triphenylphosphine (TPP) in methanol at room temperature saturated with carbon monoxide at atmospheric pressure. Best faradic yields vs DMC were observed as follows: CuCl(bipy): 84.8%; PdCl 2 (bipy): 64.0%; CoCl 2 : 26.0%; RhCl 3 : 25.0%; AgBF 4 (bipy): 10.2%; AuCl 3 : 9.4%; Cr(acac) 3 : 6.7%; PtCl 2 (bipy): 2.1%; NiCl 2 : 1.8%. The influence of the ligand on faradic yields has been also investigated.

yearjournalcountryeditionlanguage
1997-01-01
http://www.scopus.com/inward/record.url?eid=2-s2.0-0030676701&partnerID=MN8TOARS