Porchet, S.Kiwi-Minsker, L.Doepper, R.Renken, A.2006-04-182006-04-182006-04-18199610.1016/0009-2509(96)00177-7https://infoscience.epfl.ch/handle/20.500.14299/229414WOS:A1996UM76900068Gas-phase alkylation of catechol with methanol on g-alumina and modified g-alumina catalysts is studied exptl. By limiting the conversion of X < 0.3, the formation of polymethylated species can be avoided and only the three isomers guaiacol, 3-methylcatechol and 4-methylcatechol are obsd. Optimizing the catalyst compn. and the reaction conditions, a selectivity of 0.75 for the industrially most valuable product 3-methylcatechol can be obtained. [on SciFinder (R)]Methylation catalysts (selectiveg-alumina and modified g-alumina catalysts for selective gas-phase methylation of catechol)selective methylation catechol alumina catalyststext::journal::journal article::research article