Synthesis of Aromatic Esters Catalyzed by Palladium on Charcoal: An Efficient Heterogeneous Catalyst for Alkoxycarbonylation of Aryl Iodides

Abstract

Palladium on charcoal was found to catalyze the carbonylation of aryl iodides with various aliphatic alcohols as well as less reactive phenols to give the corresponding esters in high yield at 140 °C and in the presence of carbon monoxide (1.0 MPa). The carbonylation-polycondensation of 2,7-diiodo-9,10-dihydrophenanthrene with bisphenol-A afforded high molecular weight polyarylate, poly [oxy-1,4-phenylene (1-methylethylidene)-1,4-phenyleneoxycarbonyl (9,10-dihydro-2,7-phenanthrenediyl) carbonyl].

Key words

palladium on charcoal - carbonylation - aryl iodide - aromatic ester - polyarylate

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