2-NITRO-5-FLUORO-3',4'-DICHLOROBIPHENYL AND METHOD FOR THE PRODUCTION THEREOF

摘要

A method is disclosed for producing 2-nitro-5-fluoro-3',4'-dichlorobiphenyl by decarboxylizing C-C linkage. The method relates to a decarboxylizing cross-coupling of 2-nitro-5-fluorobenzoic acid salts with 1-bromine-3,4-dichlorobenzol, wherein the catalyst comprises two transition metals or transition metal compounds, one of which preferably being present in oxidation stages differing from one another by one unit and thus catalyzing a radical decarboxylization, and the second preferably receiving oxidation stages differing from one another by two units and thus catalyzing the two-electron processes of a cross-coupling reaction.