Explanation of a paradoxical selectivity in friedel-crafts alkylation under heterogeneous catalysis.
1993; Elsevier BV; Volume: 34; Issue: 3 Linguagem: Inglês
10.1016/0040-4039(93)85120-l
ISSN1873-3581
AutoresDavister Michéle, Pierre Laszlo,
Tópico(s)Catalysis and Hydrodesulfurization Studies
ResumoThe earlier reported selectivity favoring benzyl alcohol over benzyl chloride in the alkylation of toluene with “clayzic” as the catalyst, with conversion of the alcohol taking precedence over that of the chloride, arises from competitive inhibition. Alcohols in general poison the active centers of the catalyst. With i-amyl alcohol as a probe, the alcohol is adsorbed preferentially to benzyl chloride by a factor 600, in the Langmuir-Hinshelwood model.
Referência(s)