Ι. ΜΕΛΕΤΗ ΤΩΝ ΧΗΜΙΚΩΝ ΣΥΣΤΑΤΙΚΩΝ ΤΟΥ ΦΥΤΟΥ CISTUS INCANUS SUBSP. CRETICUS (L.) HEYWOOD ΙΙ. ΑΠΟΜΟΝΩΣΗ-ΔΟΜΗ-ΣΥΝΘΕΣΗ ΝΕΟΥ ΦΛΑΒΟΝΟΕΙΔΟΥΣ ΤΟΥ ΦΥΤΟΥ KALANCHOE PROLIFERA R. HAMET
type: CreativeWork
description: THE LEAVES OF CISTUS INCANUS SUBSP CRETICUS (L.) HEYWOOD COLLECTED IN CRETE ANDSTUDIED IN THE FIRST PART OF THIS THESIS. FROM THE PETROLERUM ETHER EXTRACT AND ETHER EXTRACT SEVEN LABDANE -TYPE DITERPENES HAVE BENEN ISOLATED AND IDENTIFIED. THE STRUCTURES OF ALL THE COMPOUNDS WERE DETERMINED BY MS (EI), (CID), H-NMR. FROM THE 95% ALCOHOL EXTRACT WERE ISOLATED SEVEN POLYPHENOLIC SUBSTANCES. INTHE SECOND PART OF THIS THESIS WERE STUDIED THE STRUCTURE AND THE SYNTHESIS OFA NEW FLAVONOID GLYCOSIDE (QUERCETIN-3[2-0-B-D-GLUCOPYRONOSIDE 1->2 B-D- XYLOPYRANOCIDE]. THE STEREOCHEMISTRY AND THE CONFORMATION OF THE XYLOSE ARE DESCRIBED PHASE TRANSFERT CATALYSIS APPEARS TO BE A SIMPLER AND EASIER METHOD FOR THE SYNTHESIS OF FLAVONOID GLYCOSIDE. THE YIELDS OBSERVED ARE GENERALLY HIGHER THAN THOSE REPORTED BY CLASSIC METHODS.
abstract: THE LEAVES OF CISTUS INCANUS SUBSP CRETICUS (L.) HEYWOOD COLLECTED IN CRETE ANDSTUDIED IN THE FIRST PART OF THIS THESIS. FROM THE PETROLERUM ETHER EXTRACT AND ETHER EXTRACT SEVEN LABDANE -TYPE DITERPENES HAVE BENEN ISOLATED AND IDENTIFIED. THE STRUCTURES OF ALL THE COMPOUNDS WERE DETERMINED BY MS (EI), (CID), H-NMR. FROM THE 95% ALCOHOL EXTRACT WERE ISOLATED SEVEN POLYPHENOLIC SUBSTANCES. INTHE SECOND PART OF THIS THESIS WERE STUDIED THE STRUCTURE AND THE SYNTHESIS OFA NEW FLAVONOID GLYCOSIDE (QUERCETIN-3[2-0-B-D-GLUCOPYRONOSIDE 1->2 B-D- XYLOPYRANOCIDE]. THE STEREOCHEMISTRY AND THE CONFORMATION OF THE XYLOSE ARE DESCRIBED PHASE TRANSFERT CATALYSIS APPEARS TO BE A SIMPLER AND EASIER METHOD FOR THE SYNTHESIS OF FLAVONOID GLYCOSIDE. THE YIELDS OBSERVED ARE GENERALLY HIGHER THAN THOSE REPORTED BY CLASSIC METHODS.
author: Δεμέτζος, Κωνσταντίνος
author: Demetzos, Constantinos
language: gre
keywords: ΓΕΝΙΝΕΣ ΦΛΑΒΟΝΟΕΙΔΩΝ, ΔΙΑΜΟΡΦΩΣΕΙΣ ΣΑΚΧΑΡΩΝ, Διτερπένια, ΛΑΒΔΑΝΙΑ, ΜΕΤΑΦΟΡΑ ΦΑΣΗΣ (ΜΕΘΟΔΟΣ), Ξυλόση, ΣΥΝΘΕΣΗ ΦΛΑΒΟΝΟΕΙΔΟΥΣ, Φλαβονοειδή, CISTUS INCANUS SUBSP. CRETICUS (L.) HEYWOOD, DITERPENOIDS, FLAVONOID SYNTHESIS, FLAVONOIDES, FLAVONOIDES AGLYKON, KALANCHOE PROLIFERA R. HAMET, LABDANES, PHASE TRANSFER (METHOD), SUGARS CONFORMATIONS, Xylose, Ιατρική και Επιστήμες Υγείας, Βασική Ιατρική, Medical and Health Sciences, Basic Medicine
date published: 1990
date modified: 2026-07-24T02:24:52Z
provider: Greek National Archive of PhD Theses
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: National and Kapodistrian University of Athens

PropertyValue
property ID: DOI
value: 10.12681/eadd/1357

PropertyValue
property ID: Handle
value: http://hdl.handle.net/10442/hedi/1357