Fortschritte der Chemie organischer Naturstoffe / Progress in the Chemistry of Organic Natural Products / Progrès dans la Chimie des Substances Organiques Naturelles

Inhaltsverzeichnis

• Der Kohlenhydratstoffwechsel der Gräser.
• I. Einleitung.
• II. Das Pflanzenmaterial.
• III. Die Isolierung der löslichen Kohlenhydrate.
• IV. Die analytischen Methoden.
• V. Die Konstitution der Polysaccharide der Gräser.
• VI. Die niedermolekularen Kohlenhydrate in den Gräsern.
• VII. Die Biogenese der Oligo- und Polysaccharide der Gräser.
• VIII. Abwandlungen des Kohlenhydrat- und des Eiweißgehaltes im Laufe einer Vegetationsperiode.
• IX. Anwendungen auf die Grünlandwirtschaft.
• Some in vitro Conversions of Naturally Occurring Carotenoids.
• I. Introductory Remarks.
• II. Preparation and Conversions of Carotenoids by Means of N-Bromosuccinimide.
• III. Conversions of Carotenoids via their Boron Trifluoride Complexes.
• IV. Dehydration and Dehydrogenation of Lutein.
• V. Some Spectroscopic Observations.
• References.
• The Chemistry of Podophyllum.
• I. History.
• II. Preparation of Podophyllin.
• III. Composition of Podophyllum.
• IV. Other Sources of Podophyllum Lignans.
• V. Isolation Procedures.
• VI. Podophyllotoxin.
• VII. Desoxypodophyllotoxin.
• VIII. Dehydropodophyllotoxin.
• IX. 4?-Demethylpodophyllotoxin.
• X. The Peltatins.
• XI. Sikkimotoxin.
• XII. Lignan Glucosides.
• XIII. Ionic Derivatives of Podophyllotoxin and of the Peltatins.
• XIV. Flavonols.
• XV. Absorption Spectra.
• XVI. Biological Action.
• XVII. Tables.
• X-ray Analysis and the Structure of Vitamin B12.
• I. Introduction.
• II. Some Characteristics of the X-ray Crystallographic Methods Applied to the Analysis of Vitamin B12.
• III. The Determination of the Structure of Vitamin B12.
• IV. The Chemical Reactions of Vitamin B12.
• V. Biochemical Problems Connected with the B12 Structure.
• VI. The Crystal Structures of Vitamin B12 and the Hexacarboxylic Acid.
• VII. Conclusion.
• Namenverzeichnis. Index of Names. Index des Auteurs.
• Sachverzeichnis. Index of Subjects. Index des Matières.