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Identifier 000444300
Title Καταλυτική σύνθεση 4-πυρονών και Ν-μεθυλο-4- πυριδονών από 1,1′-διυνονες
Alternative Title Catalytic synthesis of 4- pyrones and N-methyl-4-pyridones from 1,1′-diynones
Author Ζαντιώτη-Χατζούδα, Ελισάβετ-Μαρία Χ.
Thesis advisor Στρατάκης, Εμμανουήλ
Reviewer Σμόνου, Ιουλία
Νεοχωρίτης, Κωνσταντίνος
Abstract In the present thesis is presented a new method for the hydration/6-endo cyclization of 1,4-diyn-3-ones into 4-pyrones catalyzed by Au nanoparticles. It’s known that this reaction occurs under homogeneous gold catalysts which provides mixtures of 4-pyrones and 3(2H)-furanones. In the presence of Au nanoparticles, the reaction affords only 4-pyrones, using 3 mol% of Au/TiO2 and dioxane/H2O =3/1 as solvent. A plethora of substituted 1,4-diyn-3-ones were tested and the products were formed in excellent yields. By replacing H2O with aqueous methylamine, N-methyl-4- pyridones are formed in equally high yields. This method is the first mention for the synthesis of 4-pyridones from diynones catalyzed by Au.
Language Greek
Subject 4-πυριδόνες
Heterogeneous catalysis
Ετερογενής κατάλυση
Issue date 2022-03-31
Collection   School/Department--School of Sciences and Engineering--Department of Chemistry--Post-graduate theses
  Type of Work--Post-graduate theses
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