Sökning: "lithium amide"
Visar resultat 1 - 5 av 9 avhandlingar innehållade orden lithium amide.
1. Asymmetric Formation and Isomerization of Three-Membered Rings : Catalyst Development and Evaluation
Sammanfattning : Enantiopure α-amino acid derivatives were prepared using a protocol which allows for highly controlled regio- and chemoselectivity in the hydrogenation/ hydrogenolysis of aza-Diels-Alder adducts. One of the resulting α-amino esters, (1S,3R,4R)-2-azabicyclo[2.2.1]heptane-3-carboxylic acid ethyl ester, was utilized further as a catalyst precursor. LÄS MER
2. Development of New Chiral Bicyclic Ligands : Applications in Catalytic Asymmetric Transfer Hydrogenation, Epoxidations, and Epoxide Rearrangements
Sammanfattning : This thesis describes the synthesis and application of new chiral bicyclic ligands and their application in asymmetric catalysis. The studies involved: [i] The development of novel chiral bicyclic amino sulfur ligands and their use in transfer hydrogenation. LÄS MER
3. Chiral Lithium N,P-amide Complexes. Synthesis, Applications and Structural Studies by NMR and DFT
Sammanfattning : Enantiospecific synthesis reactions are of intense interest, owing to the increasing request for enantiopure compounds in both research and industry. Lithium amides containing a secondary chelating group are a class of powerful ligands for asymmetric addition reactions. LÄS MER
4. Asymmetric Synthesis and NMR Studies of Chiral Lithium N,P-amide Complexes - Development of a Synthetic Route Towards Chiral Aminophosphines via Cyclic Sulfamidates
Sammanfattning : .... LÄS MER
5. Computational Studies of Hydrogen Storage Materials : Physisorbed and Chemisorbed Systems
Sammanfattning : This thesis deals with first-principles calculations based on density functional theory to investigate hydrogen storage related properties in various high-surface area materials and the ground state crystal structures in alkaline earth dicarbide systems. High-surface area materials have been shown to be very promising for hydrogen storage applications owing to them containing numerous hydrogen adsorption sites and good kinetics for adsorption/desorption. LÄS MER