Process for the preparation of 2,3,5-trimethyl-p-benzoquinone

Details Process for the preparation of 2,3,5-trimethyl-p-benzoquinone Process for the preparation of 2,3,5-trimethyl-p-benzoquinone

C - Chemistry, Metallurgy

07

C

C07C 50/04 (2006.01) C07C 46/08 (2006.01)

Patent

CA 2323342

Process for the preparation of 2,3,5-trimethyl-p- benzoquinone by oxidising 2,3,5-trimethylphenol or 2,3,6- trimethylphenol with oxygen or an oxygen-containing gas mixture in the presence of a catalyst system consisting of a copper halide and a transition metal halide from the group iron, chromium, manganese, cobalt, nickel, zinc or a rare earth halide, in a two-phase reaction medium, at elevated temperature.

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