MANUFACTURING METHOD OF DIENE COMPOUND

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PROBLEM TO BE SOLVED : To provide a method for manufacturing a corresponding diene compound from 1, 3-diol type raw material, loss in generation of by-product (impurities) impossible to reuse as a raw material. SOLUTION : There is provided a method for manufacturing a diene compound represented by the formula (3) by a first dehydration process for manufacturing unsaturated alcohol from a diol compound with dopant-containing zirconia containing one or more kind of dopant selected from an alkali earth element and a rear earth element with 0.010 to 0.500 mol of total dopant to 1 mol of zirconium atom as a catalyst and a second dehydrating process to manufacture the diene compound from unsaturated alcohol in presence of a dehydration catalyst consisting of one or more kind of compound selected from metal inorganic salt, metal oxide or inorganic acid. (3), R1 to R6 are each independently a C1 to 5 alkyl group or a C6 to 12 aryl group. SELECTED DRAWING : None COPYRIGHT : (C)2018, JPO&INPIT