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Identifier uch.chemistry.msc//2006raptis
Title Εκλεκτική μονοκυκλοποίηση εποξυ πολυενικών τερπενίων με εγκλωβισμό στο ζεόλιθο ΝaY
Alternative Title Selective monocyclization of epoxy polyene terpenes by confinement within zeolite NaY
Creator Raptis, Christos
Abstract In the present Thesis was studied the cyclization of epoxy polyene terpenes by confinement within zeolite NaY. More specifically, we studied the farnesyl derivatives, 10,11-epoxyfarnesyl acetate and 13,14-epoxyfarnesyl acetone, as well as, 2,3-epoxysqualene. Cyclization of these derivatives, in the presence of zeolite NaY, formed as major products the monocyclized derivatives, the majority of them are natural products. For example, the cyclization of 10,11-epoxyfarnesyl acetate led to the formation of the natural product elegansidiol, while the cyclization of 13,14- epoxyfarnesyl acetone led to the formation of 4 natural products. Finally, cyclization of 2,3-epoxysqualene by confinement within zeolite NaY, afforded two natural products, namely achilleol A and camelliol C. It is important to point out that, in similar cyclization reactions using Lewis acids as catalysts, the polycyclized derivatives were formed the major products.
Subject ζεόλιθος NaY, εποξυ τερπένια, κυκλοποίηση, φυσικά προϊόντα, zeolite, epoxyterpenes, cyclization, natural products, biomimetic
Issue date 2006-11-01
Date available 2007-01-11
Collection   School/Department--School of Sciences and Engineering--Department of Chemistry--Post-graduate theses
  Type of Work--Post-graduate theses
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