Reference : Zeolite-catalyzed acetylation of alkenes with acetic anhydride
Scientific congresses and symposiums : Paper published in a journal
Physical, chemical, mathematical & earth Sciences : Chemistry
Zeolite-catalyzed acetylation of alkenes with acetic anhydride
Smith, Keith [> > > >]
Zhenhua, Zhao [> > > >]
Delaude, Lionel mailto [Université de Liège - ULiège > Département de chimie (sciences) > Chimie macromoléculaire et catalyse organique >]
Hodgson, Philip K G [> > > >]
Studies in Surface Science and Catalysis
Elsevier Science
Heterogeneous Catalysis and Fine Chemicals IV
The Netherlands
[en] Acetylation catalysts (zeolite-catalyzed acetylation of alkenes with acetic anhydride) ; Zeolite HY Role: CAT (Catalyst use), USES (Uses) (zeolite-catalyzed acetylation of alkenes with acetic anhydride) ; alkene acetylation HY zeolite catalyst
[en] 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.
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