| 摘要 |
PCT No. PCT/JP92/01006 Sec. 371 Date Apr. 8, 1993 Sec. 102(e) Date Apr. 8, 1993 PCT Filed Aug. 6, 1992 PCT Pub. No. WO93/02995 PCT Pub. Date Feb. 18, 1993.A method for preparing a dialkylnaphthalene in one step by contacting an dialkylbenzene compound with a solid catalyst in a gas or liquid phase in the presence of hydrogen, using a catalyst having composition (I) or (II) below: (1)(M1)a.(M2)b.(SiO2.XAl2O3).(Al2O3)c(I) (2) Mixture of II-(i) and II-(ii): (M3)d.(Al2O3)II-(i) (M4)e.(SiO2.XAl2O3)II-(ii) wherein M1 is a metal selected from the group consisting of metals belonging to group VIII of a periodic table and rhenium; M2 is a member selected from the group consisting of zinc, gallium, and oxides thereof; M3 is a metal belonging to group VIII of a periodic table; M4 is at least one alkali metal; and a, b, c, d, e, and X represent proportions, respectively.
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