Process for preparting aryl carbonates
AssigneeBayer Aktiengesellschaft
InventorsPieter Ooms, Norbert Schon, Hans-Josef Buysch
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Abstract
Carbonates with aromatic ester groups may be prepared by reacting aromatic monohydroxy compounds with phosgene or with chloroformates of aromatic monohydroxy compounds, wherein the process is performed at a temperature in the range 50.degree.-350.degree. C. in the presence of aluminosilicates as heterogeneous catalysts.
Claims4
A process for preparing aryl carbonates by reacting aromatic monohydroxy compounds with phosgene or chloroformates of aromatic monohydroxy compounds, characterised in that the reaction is performed at a temperature in the range 50.degree.-350.degree. C. under a pressure of 0.2 to 20 bar in the presence of one or more aluminosilicate zeolites as heterogeneous catalysts.
Dependencies are inferred from the claim text.