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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 2
BKCSDE 33(2)
February 20, 2012 

Highly Selective Amination of o- and p-Alkyl Phenols over Pd/Al2O3-BaO
Jianchao Ma, Huabang Wang, Meng Sun, Fan Yang, Zhiwei Wu, Donghua Wang,*, Ligong Chen*
Catalytic amination, Alkylanilines, Alkylphenols, Pd/Al2O3-BaO
A series of Pd-based catalysts were prepared and examined for the amination of 2,6-dimethylphenol in a fixedbed reactor. The best results were obtained for Pd/Al2O3-BaO with a conversion of 99.89% and a selectivity of 91.16%. These catalysts were characterized using BET, XRD, XPS, TEM and NH3-TPD. Doped BaO not only improved the dispersion of the Pd particles but also decreased the acidity of the catalyst, which remarkably enhanced the selectivity and stability of the catalyst. The generality of Pd/Al2O3-BaO for this kind of reaction was demonstrated by catalytic aminations of o- and p-alkyl phenols.
387 - 392
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