Browsing Fakultät für Chemie (inkl. GAUSS) by Referee "Tietze, Lutz Prof. Dr. Dr. h.c."
Now showing items 21-31 of 31
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Synthese und biologische Evaluierung neuartiger Acronycin-Duocarmycin-Hybride
(2012-02-17)A new hybrid comprising the structure of natural products acronycine and duocarmycin was synthesized and biologically evaluated. -
Synthese von Tetragastrin-CC-1065-Konjugaten und verwandten Verbindungen für eine selektive Krebstherapie
(2007-06-19)The antibiotic (+)-CC-1065 was first isolated from culture of Streptomyces zelensis in 1978. It showed in both in vitro and in vivo performed screenings very high cell toxicity. The study ... -
Synthesis and Application of new chiral Peptides, Guanidines and Formamides as Organocatalysts for Asymmetric C-C Bond Formation Reactions
(2007-02-07)For this Ph. D. thesis I synthesized chiral peptides, guanidines and formamides and used them as organocatalysts in asymmetric C-C bond formation reactions. Here I demonstrated that small ... -
Synthesis and X-ray Structural Characterization of Oxygen Bridged Complexes for Olefin Polymerization: A Theoretical Interpretation of Structure and Activity Relationship
(2007-11-22)This PhD thesis describes the synthesis and X-ray structural studies of oxygen bridged heterobi- and trimetallic complexes for olefin polymerization reactions. First part of work describes the preparation and characterization ... -
Synthesis of Diverse Polyfunctional Amides as Precursors to Potentially Interesting Peptidomimetics
(2008-10-22)First chapter is dedicated to the applying of the Ugi multicomponent reaction for the synthesis of the compound containing small ring systems such as cyclopropane and its structure ... -
Synthesis of New Spirocyclopropanated beta-Lactams and Their Application as Building Blocks for beta-Amino Acid Peptides
(2005-12-12)Several differently substituted monocyclic 3-spirocyclopropanated β-lactams, formally derived from α-cyclopropyl-modified β-alanine, have been prepared through the rearrangement of ... -
Synthesis, Structure and Reactivity of Manganese Complexes Supported by Carbon or Nitrogen Donor Ligands
(2004-11-23)In this thesis, N-heterocyclic carbene, b-diketiminate and diamide ligands have been employed as supporting moieties for manganese compounds. The experimental results demonstrate that steric ... -
Totalsynthese von Camptothecin
(2008-10-22)The pentacyclic alkaloid camptothecin exhibits pronounced cytotoxicity. Within the framework of structure-property-relationship studies irinotecan (camptosar®) and topotecan (hycamtin®) as ... -
Transition Metal- and Electro-Catalyzed C-H and B-H Activation for the Efficient Synthesis of Carborane Derivatives
(2023-01-12)The emergence and rapid development of transition metal-and electro-catalyzed C-H activation has proven to be a powerful tool in the assembly of complex molecular structures. in addition, the selective synthesis of carborane ... -
Versuche zur Erzeugung des Pentacyclopropylcyclopentadienyl-Kations, und Synthese von Cyclopropylierten Oligoenen, Carbo- und Heterocyclen
(2004-12-27)The objective of this dissertation on the one hand was to generate the pentacyclopropylcyclopentadienyl cation under stable cation conditions and its characterization by low-temperature ... -
Die Zirconiumalkoxid-katalysierte Aldol-Tishchenko-Reaktion von Keton-Aldolen
(2005-05-18)In the first part of the current thesis the aldol-Tishchenko reaction of ketone aldols as enol equivalents has been developed as an efficient strategy to furnish differentiated 1,3-anti ...