Synthesis of dialkyl oxalates by the heterogeneously catalyzed oxidative carbonylation of alcohols

摘要

Synthesis of dialkyl oxalates by the oxidative carbonylation of liquid monohydric saturated alcohols of from 1 to 20 carbon atoms with carbon monoxide and oxygen or an oxygen-containing gas in the presence of a catalytic amount of a catalyst comprising palladium or a salt thereof in combination with vanadium in the oxide (V2O5, V2O4, V2O3) form and titanium or a non-hydrolyzable salt thereof, said catalyst being present in a heterogeneous phase.