Acetylation of aromatic compounds over H-BEA zeolite: the influence of the substituents on the reactivity and on the catalyst stability

M Guidotti, C Canaff, JM Coustard, P Magnoux…

文献索引：Guidotti, Matteo; Canaff, Christine; Coustard, Jean-Marie; Magnoux, Patrick; Guisnet, Michel Journal of Catalysis, 2005 , vol. 230, # 2 p. 375 - 383

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被引用次数: 41

摘要

The acylation with acetic anhydride of six aromatic substrates with different features (degree of activation of the aromatic ring towards electrophilic substitution, number of rings, ie, 1 or 2) was carried out in a batch reactor at 373 K over a H-BEA zeolite (Si/Al= 15) with nitrobenzene as a solvent. The acetylation rate was found to be very dependent on the degree of ring activation, with diffusion limitations playing only a limited role. The ...