| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject compound useful as a raw material for rubber chemical, medicine, dye, etc. by using an arylamine as a raw material and a solid acid catalyst composed of β-zeolite and silica under pressure in a liquid phase. SOLUTION: Arylamines, preferably arylamines of formula I and formula II (R1 to R10 are each H, a 1-12C alkyl, a 1-12C alkoxy, phenyl or the like) (e.g. aniline, toluidine, cumidine or the like) are reacted by using a solid acid catalyst composed of β-zeolite (preferably H type or NH4 type) and silica under pressure in a liquid phase preferably by adding water at 330-360 deg.C under 10-40 kg/cm<2> G to give the objective compound (preferably a compound of formula III). The shape of the zeolite catalyst is preferably granule or a molded shape of tablet form. Preferably the solid acid preferably has the molar ratio of SiO2 /Al2 O3 of β-zeolite of 5-100 and 10-70 wt.% silica content. |
