Kiwi-Minsker, L.Renken, A.2006-04-182006-04-182006-04-181999https://infoscience.epfl.ch/handle/20.500.14299/229441Vapor-phase alkylation of aroms. over environmentally benign solid catalysts is a valuable alternative to the conventional alkylation carried out traditionally over mineral acids and Friedel-Crafts type catalysts. Two examples for the development of new, simple, non-corrosive and environmentally safe processes of the selective methylation were reported: (1) the selective (80%) formation of 4,4'-dimethylbiphenyl over H-ZSM-5 zeolite, and (2) the prodn. of 3-methylcatechol over g-alumina modified with Mg2+ and Li+. Mechanistic considerations for the alkylation reactions were discussed. [on SciFinder (R)]Zeolite HZSM-5 Role: CAT (Catalyst use)USES (Uses) (catalystsvapor-phase selective alkylation of arom. hydrocarbons over environmentally benign solid acid catalysts)Alkylation catalystsMethylationMethylation catalysts (vapor-phase selective alarom hydrocarbon alkylation solid catalystmethylation arom hydrocarbon solid catalystzeolite alkylation arom hydrocarbonalumina alkylation arom hydrocarbonbiphenyl alkylation HZSM5 zeolite catalystcatechol alkylation alumina catalysttext::conference output::conference proceedings::conference paper