Global ETD Search

1	New Reaction Discoveries in Gold Catalysis Hosseyni, Seyedmorteza 13 March 2017 (has links) In this dissertation, gold catalyst was employed to catalyze intermolecular reactions. Intramolecular reactions were far more advanced than intermolecular reaction in gold catalysis. With finding suitable ligands for gold catalysts, we were able to develop several transformations to synthesize interesting building blocks in organic chemistry including: allenes, furans, spiros, oxepines, propargyl ethers and ketones. These functionalities were synthesized by the use of triazole-gold(I) catalyst. Triazole, as a ligand bond to gold, showed enhanced stability of the catalyst, which resulted in better yields. Gold(I)/(III) redox chemistry also used for cyclopropanol ring openings which resulted in synthesizing substituted ketones. Enyne cycloisomerization Gold redox Diazonium activation Chemistry Organic Chemistry
2	Palladium-katalysierte Domino-Reaktionen zum Aufbau bi- und tricyclischer Systeme / Formation of Bicyclic and Tricyclic Systems by a Domino Process of Palladium-Catalyzed Cyclization and Diels-Alder Reaction Körbe, Stefanie 26 June 2001 (has links) No description available. 540 Chemie Mathematics and Computer Science Katalyse Palladium Heck-Reaktion Enin-Cycloisomerisierung Diels-Alder-Reaktion catalysis palladium Heck-reaction enyne-cycloisomerization Diels-Alder-reaction 35.52