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See detailZeolite-catalyzed acetylation of alkenes with acetic anhydride
Smith, Keith; Zhenhua, Zhao; Delaude, Lionel ULg et al

in Studies in Surface Science and Catalysis (1997), 108(Heterogeneous Catalysis and Fine Chemicals IV), 99-106

Among various microporous adsorbents such as alumina, silica, clays, mol. sieves, etc., the HY zeolite was found to be best at promoting the acylation of 2,3-dimethyl-2-butene with acetic anhydride. The ... [more ▼]

Among various microporous adsorbents such as alumina, silica, clays, mol. sieves, etc., the HY zeolite was found to be best at promoting the acylation of 2,3-dimethyl-2-butene with acetic anhydride. The influence of numerous exptl. parameters on the course of the reaction was investigated. Variations in the silica/alumina ratio of the zeolite, or in the relative proportions of reagents and catalyst, markedly affected the yield of 3,3,4-trimethyl-4-penten-2-one, whereas the reaction time and temp. were less influential. The procedure was extended to various other alkenes and it was possible to regenerate and to reuse the solid catalyst without significant loss of activity. [less ▲]

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See detailHeightened selectivity in aromatic nitrations and chlorinations by the use of solid supports and catalysts
Delaude, Lionel ULg; Laszlo, Pierre ULg; Smith, Keith

in Accounts of Chemical Research (1993), 26(12), 607-613

The heightened selectivity in aromatic nitrations and chlorinations using solid supports and catalysts is reviewed with 67 references.

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