Dokumente Fakultät für Chemie (inkl. GAUSS) nach Gutachter "Ackermann, Lutz Prof. Dr."
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Mikroskopische Reaktivität Metallorganischer Spezies
(2023-03-15)In oder to better understand cross-coupling reactions, the oxidative addition between organo halides and organometallates based on iron, cobalt and copper was investigated by using ion-molecule reactions in the gas phase. ... -
Nickel-Catalyzed Secondary Alkylations and Fluoroalkylations via C–H Activation
(2016-07-15)In the past several decades, transition metal-catalyzed cross-coupling reactions proved to be of utmost importance within organic synthesis. However, required prefunctionalization of substrates remained as a major disadvantage ... -
Palladium(II)-katalysierte Domino-Reaktionen zur enantioselektiven Synthese von Confluentin, Daurichromen- und Rhododaurichromansäure Untersuchungen zur Synthese von Aglaroxin A
(2011-04-28)This thesis is about Palladium(II) catalysed Domino Reactions for the enantioselective Synthesis of Confluentin, Daurichromenic and Rhododaurichromanic acid. These substances were isolated ... -
Post-Synthetic DNA-Functionalization Based on DNA-Templated Dynamic Chemistry
(2015-06-26)With the growing field of DNA technology there is an increasing demand for new modifications of DNA, which improve its versatility and promote the DNA as a fundamental scaffold for a wide field of applications like catalysis, ... -
Resource-Economical C–H Activation for Late-Stage Functionalization
(2021-07-07)Organic synthesis has traditionally relied on step-, time- and resource-intensive strategies, namely the functional group interconversion and, more recently, on cross-coupling reactions. These approaches have enabled the ... -
Resource-Economical Synthesis by Selective Metal-Catalyzed C–H Activations
(2021-04-30)The advent of new synthetic strategies has enriched the synthetic organic chemistry to access molecules with tremendous complexity. In this context, transition metal-catalyzed C−H activation has emerged as a powerful tool ... -
Ruthenium(II) biscarboxylate-Catalyzed C(sp2)-H and C(sp3)-H Functionalizations by Chelation Assistance
(2016-12-06)Functionalizations of C(sp2)-H and C(sp3)-H bond were achieved by Ruthenium(II) biscarboxylate complexes in an atom- and step-economic fashion. -
Ruthenium(II)- and Copper(I)-Catalyzed C–H Functionalizations
(2015-12-17)Transition metal-catalyzed cross-coupling reaction as one of the greatest chemical innovations of 20th century has to utilize stoichiometric amounts of prefunctionalized reagents. In comparison, the transition metal-catalyzed ... -
Ruthenium(II)-Catalyzed C-H Arylations of Arenes
(2016-10-10)The goal of this work was to devise environmentally friendly and cost-effective novel concepts for the efficient synthesis of biaryl units as core structure in biologically active compounds, which are of great importance ... -
Ruthenium(II)-Catalyzed C-N, C-O and C-C Formations by C-H Activation
(2017-02-16)Ruthenium catalyzed C-N, C-O and C-C formation is achieved by C-H activation. access to primary aminoketones leds to synthetic synthons for different heterocycles. removable and reusability was shown first time in C-O bond ... -
Ruthenium(II)-Catalyzed Direct C−H meta-Alkylations, Alkenylations and Alkyne Annulations
(2015-08-06)Ruthenium(II)-Catalyzed Direct C−H meta-Alkylations, Alkenylations and Alkyne Annulations -
Ruthenium- and Cobalt-Catalyzed C-H Activation
(2018-11-12)The thesis contents methods for the ruthenium- and cobalt catalyzed C-H activation of arenes. Ruthenium(II) catalysis was used to alkenylate arylacetamides using acrylates or alkynes. Further, ruthenium-catalyzed C-H ... -
Ruthenium- and Cobalt-Catalyzed Chelation-Assisted C-H Functionalizations
(2015-07-09)Ruthenium- and cobalt-catalyzed C-H activations have been discribed in this thesis, which provided expedient routes to the synthesis of synthetically useful compounds. Moreover, detailed mechanistic studies were also ... -
Ruthenium- and Cobalt-Catalyzed Chelation-Assisted C–H Functionalization
(2017-09-11)Catalytic C−H functionalization has emerged as an economically-attractive and environmentally-benign alternative to conventional cross-coupling approaches. Thus, major efforts have been made on transformations of inert C–H ... -
Ruthenium- and Manganese-Catalyzed C−O and C−C Formation via C−H Activation
(2016-06-08)In the past several decades, transition metal-catalyzed cross-coupling reactions have been proved to be one of the most useful and reliable tools for C−C bond formation. However, the prefunctionalized organometallic ... -
Ruthenium-Catalyzed Synthesis of Biaryls through C–H Bond Functionalizations
(2013-11-15)The main focus of this work was the development of new methodologies for the efficient and step-economical synthesis of biaryls cores by direct arylation through direct C–H bond cleavage. In this aim, the first ruthenium-catalyzed ... -
Rutheniumkatalysierte Addition von nicht aktivierten C(sp²)–H- und C(sp³)–H-Bindungen an Alkene
(2013-04-30)Novel site-selective carboxylate assisted ruthenium-catalyzed hydroarylations of unactivated alkenes, bearing valuable functional groups, with various (hetero)arenes has been accomplished. And a unprecedented ruthenium ... -
Selectivity Control in 3d Transition Metal-Catalyzed C–H Activation
(2019-08-23)Methods for the selective functionalization of otherwise inert C–H bonds have been recognized as a transformative tool in synthetic organic chemistry, with applications ranging from the synthesis of complex bioactive ... -
Site-Selectivity in Ruthenium-Catalyzed C–H and C–C Activations
(2020-09-23)During the past decades, transition metal-catalyzed C–H and C–C activation has been recognized as a powerful platform in organic synthesis to access the selective construction of new C–C and C–Het bonds. The full control ... -
Studien zur oxidativen Funktionalisierung von Alkenen mittels Selen-pi-Säure-Katalyse
(2019-01-24)The application of diselenides as catalysts for the oxidative functionalization of alkenes via selenium-pi-acid catalysis was researched. Besides a method for the diselenide-catalyzed formation of indoles relying on NFSI ...