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Cerium‐Based Binary and Ternary Oxides in the Transesterification of Dimethylcarbonate with Phenol
Author(s) -
Dibenedetto Angela,
Angelini Antonella,
di Bitonto Luigi,
De Giglio Elvira,
Cometa Stefania,
Aresta Michele
Publication year - 2014
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201301025
Subject(s) - transesterification , dimethyl carbonate , catalysis , diphenyl carbonate , phenol , chemistry , inorganic chemistry , ethylene carbonate , cerium , bimetallic strip , methoxide , organic chemistry , electrode , electrolyte
Diphenyl carbonate (DPC) plays a key role in phosgene‐free carbonylation processes. It can be produced by transesterification of dimethyl carbonate (DMC) with phenol in the presence of catalysts. Methyl phenyl carbonate (MPC) is first produced that is then converted into DPC by either disproportionation or further transesterification with phenol. Cerium‐based bimetallic oxides (with the heterometal being niobium, iron, palladium, or aluminum) are used as catalysts in the transesterification of DMC to synthesize MPC. The catalytic activity is affected by the type and concentration of the heterometal. XPS, IR and elementary analyses are employed to characterize the new catalysts. Differently from pure oxides, the mixed oxides produce a significant increase of the conversion and selectivity towards MPC.