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AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsNorio Fushimi, Ko Kedo, Kenji Inamasa, Makoto Takagawa
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A process for producing a monoalkenyl aromatic hydrocarbon compound which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom bonded at an .alpha.-position of the side chain (such as xylene) with a conjugated diene having 4 or 5 carbon atoms (such as butadiene) in the presence of a catalyst comprising a mixture obtained by heat treating metallic sodium together with a mixture of a zirconium oxide and a potassium compound in an inert gas atmosphere. An industrially useful monoalkenyl aromatic hydrocarbon compound is produced in a high yield at a low cost with enhanced safety from a specific aromatic hydrocarbon compound and a specific conjugated diene compound.
A process for producing a monoalkenyl aromatic hydrocarbon compound which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom bonded at an .alpha.-position of the side chain with a conjugated diene having 4 or 5 carbon atoms in the presence of a catalyst comprising a mixture obtained by heat treating metallic sodium together with a mixture of zirconium oxide and at least one potassium compound selected from the group consisting of potassium hydroxide, potassium carbonate, potassium hydrogen carbonate and potassium zirconate in an inert gas atmosphere.
Dependencies are inferred from the claim text.