Fortschritte der Chemie organischer Naturstoffe / Progress in the Chemistry of Organic Natural Products / Progrès Dans La Chimie Des Substances Organiques Naturelles, Softcover reprint of the original 1st ed. 1948 Coll. Fortschritte der Chemie organischer Naturstoffe Progress in the Chemistry of Organic Natural Products, Vol. 5

Carotinoid-epoxyde und furanoide Oxyde von Carotinoidfarb-Stoffen.- I. Vorkommen, Konstitution und Partialsynthesen der Carotinoid-epoxyde.- II. Die furanoid gebauten Carotinoid-epoxyde.- III. Die Molekularstruktur der Carotinoid-epoxyde.- IV. Biologische Bedeutung der Carotinoid-epoxyde.- Some Biochemical Aspects of Marine Carotenoids.- Marine muds.- Marine animals in general.- Protista.- Sponges.- Coelenterates.- Worms.- Echinoderms.- Mollusks.- Crustaceans.- Tunicates.- Fishes.- Mammals.- Conclusions.- References.- Azulenes.- Isolation and purification.- Physical properties.- Chemical properties.- Structure determination.- Nomenclature.- Structure of naturally occuring precursors of azulenes.- Synthesis of Azulenes.- Absorption spectra.- Some biochemical aspects.- Further possible types of azulenes.- Pharmacological properties of azulenes.- References.- Recent Advances in the Study of Component Acids and Component Glycerides of Natural Fats.- Introduction: Discussion of the “Rule of even distribution”.- Spectrophotometric determination of certain unsaturated higher fatty acids.- Resolution of mixed fatty acids by crystallisation from solvents at low temperatures.- Partial resolution of mixed glycerides in natural fats by crystallisation from solvents at low temperatures.- The present state of knowledge of the glyceride structure of natural fats.- 1. Fats with three (or at most four) major component acids.- 2. Computation of component glycerides from the proportions of the component fatty acids in a fat.- 3. Fats with four or more component acids in similar proportions.- 4. Animal body fats rich in stearic acid and animal milk fats containing notable proportions of butyric and/or other lower saturated acids.- 5. Synthesis and transformation by chemical means ofmixed glycerides in the laboratory.- References.- Enzymatically Synthesized Polysaccharides and Disaccharides.- Formation of starch and glycogen through the phosphorolytic condensation.- Conditions affecting polysaccharide formation.- Synthetic polysaccharides.- Arsenolysis and phosphorolysis of amylose and amylopectine.- Phosphorylase.- The mechanism of dextran and levan formation.- Mechanism of sucrose formation.- Specificity of sucrose phosphorylase.- D-glucosido-D-xyloketoside, D-glucosido-L-araboketoside and D-glucosido-L-sorboside.- ?-D-glucosido-L-arabinose.- Formation of sucrose and other disaccharides through exchange of glycosidic linkages.- References.- Recent Developments in the Structural Problem of Cellulose.- I. The linear structure of cellulose.- Critical review of the proofs supporting the linear structure of cellulose.- Molecular weight determination of cellulose.- Oxycellulose.- Hydrocellulose.- Conclusions regarding the linear structure of cellulose.- Theory of ester linkages.- Theory of blocked hydroxyl groups.- Theory of looping bonds.- Theory of acid-sensitive bonds and the principle of periodicity.- Theory of acetal linkages in equi-distant open-chain units and the laminated chain structure of cellulose.- References.- Lignin.- I. Occurrence, formation and detection.- II. Isolation of lignin.- III. Properties and conversions of lignin.- IV. The structure of lignin.- References.- The Chemistry of the Constituents of Toad Venoms.- I. The bufagins.- II. Bufotoxins.- III. Basic constituents of toad venoms.- IV. Sterols.- V. Suberic acid.- References.- Biochemistry of Fish Proteins.- Composition of fish muscle protein.- Amino acid content of fish muscle protein.- Nutritive value of fish protein.- Fish blood proteins.- Fish collagens.- Fish proteinswith enzymatic activity.- Proteins isolated from fish sperm.- Pharmacological effects of some histones and protamins.- Proteins isolated from female reproductive organs of fish.- References.- Some Recent Developments in Chemical Genetics.- Classical genetics.- Chemical genetics.- Phenylalanine metabolism.- Antigen specificity.- Hemophilia.- Gene-directed specific reactions in other organisms.- Neurospora.- Nature and action of genes.- Gene mutation.- Universality of genes.- Cytoplasmic factors.- Genes and evolution.- Conclusions.- References.- Infrared Spectroscopy in Structure Determination and its Application to Penicillin.- I. Experimental methods.- II. Interpretation of infrared spectra.- III. General features of infrared spectra of organic compounds.- IV. Applications to structure determinations.- Penicillin.- V. Conclusion.- References.- Namenverzeichnis. Index of Names. Index des Auteurs.- Sachverzeichnis. Index of Subjects. Index des Matières.