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Zeolite Shape‐Selectivity in the gem ‐Methylation of Aromatic Hydrocarbons
Author(s) -
Lesthaeghe David,
De Sterck Bart,
Van Speybroeck Veronique,
Marin Guy B.,
Waroquier Michel
Publication year - 2007
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200604309
Subject(s) - zeolite , selectivity , reactivity (psychology) , hydrocarbon , chemistry , methanol , methylation , organic chemistry , topology (electrical circuits) , computational chemistry , catalysis , gene , biochemistry , medicine , alternative medicine , mathematics , pathology , combinatorics
A glove for the purpose : The kind of olefins obtained from methanol in zeolites is strongly dependent on specific combinations of the intermediate organic hydrocarbon‐pool species and zeolite topology (see picture). If the cage is too large, neutral species are favored over reactive cations. If the cage is too small, transition‐state‐shape selectivity poses severe limitations on the reactivity of bulkier species.