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Diels–Alder reactions of carbonyl-containing dienophiles catalyzed by tungstophosphoric acid supported on silica gel

✍ Scribed by Gerrit J. Meuzelaar; Leendert Maat; Roger A. Sheldon


Book ID
110380991
Publisher
Springer US
Year
1998
Tongue
English
Weight
43 KB
Volume
56
Category
Article
ISSN
1011-372X

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Silica and alumina modified by Lewis aci
✍ Carlos Cativiela; José M. Fraile; José I. García; José A. Mayoral; Elisabet Pire 📂 Article 📅 1993 🏛 Elsevier Science 🌐 French ⚖ 675 KB

Several ahunini~ and titanium derivatives are supported on silica and alumina. Some of the solids obtained contain strong Lewis adds sites and are eft%ient catalysts in Diels-Alder reactions of carbonyl-containing dienophiles. In cyclopentadiene reactions, high conversions and endo/exo selectivities