Chromium salt catalysts and their use

Abstract From the Canadian patent

This patent describes the catalytic promotion of the reaction of oxirane-containing compounds with carboxylic acid compounds at high ambient, and low temperature. Specifically this patent describes, the method of reacting oxirane-containing compounds with carboxylcontaining compounds, preferably at temperatures at or around ambient in the presence of active chromium III tricarboxylate salts which have unoccupied coordination sites. More specifically this patent describes the preparation of catalytically active chromium III-tricarboxylates from normally catalytically inactive chromium III-tricarboxylate hydrates. These compounds are powerful catalysts for the reactions of oxirane compounds …