Search for dissertations about: "diethylzinc"
Showing result 1 - 5 of 6 swedish dissertations containing the word diethylzinc.
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1. Chiral Pyridine-Containing Ligands for Asymmetric Catalysis. Synthesis and Applications
Abstract : This thesis deals with the design and syntheses of chiral,enantiopure pyridinecontaining ligands and their applicationsin asymmetric catalyis.Chiral pyridyl pyrrolidine ligands and pyridyl oxazolineligands were synthesized and employed in thepalladium-catalysed allylic alkylation of 1,3-diphenyl-2-propenyl acetate with dimethyl malonate. READ MORE
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2. C2- and C3-symmetric ligands via ring-opening of aziridines
Abstract : This thesis deals with the design and synthesis of chiralenantiopure nitrogencontaining ligands and the use of theseligands in asymmetric catalysis. A modular synthetic approachto enantiopure nitrogen-containing ligands was developed. Thesynthetic method is based on the ring-opening of activatedchiral aziridines by nitrogen nucleophiles. READ MORE
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3. Synthesis and evaluation of bicyclic 1,3-diols (BODOLs) as ligands for asymmetric catalysis
Abstract : Several ligands based upon 2-substituted bicyclic[2.2.2]octane-2,6-diols (BODOLs) were synthesized and evaluated in two catalytic reactions: I) the Ti(IV)-mediated catecholborane asymmetric reduction of prochiral ketones and II) as catalysts in the asymmetric addition of diethylzinc to aromatic aldehydes. READ MORE
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4. Non Natural Aromatic Amino Acids Applications in cage-construction, metal ion coordination and asymmetric catalysis
Abstract : Aromatic non-natural amino acids, the outstanding feature of which was the presence of several arms, were synthesised and their properties investigated. The amino acids were synthesised following a standard procedure starting with a Horner-Wadsworth-Emmons or a Heck reaction, which provided didehydroamino acids. READ MORE
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5. Synthesis of amino- and hydroxyl-substituted bridged bicyclic compounds and their application in asymmetric catalysis
Abstract : In this work, hydroxyl- and amino-substituted bridged bicyclic compounds based on bicyclo[2.2.1]heptane, bicyclo[2.2. READ MORE