The development of new aza-bicyclic structures with potential applications as ligands synthesised via an aza-Diels-Alder cycloaddition has been studied. The studies are concerning the i) development of large scale aza-Diels-Alder reaction, ii) development of a fast and simple route to bicyclic diamine ligands, iii) development of new aza-Diels-Alder adducts from different dienes, iv) development and application of bicyclic N,P ligands for catalytic Michael additions and v) development of robotized asymmetric transfer hydrogenation reactions. i) Development of large-scale aza-Diels-Alder reaction giving up to 110 g pure product, in ordinary laboratory equipment without the need of any flash chromatography. ii) Development of a new synthetic route to bicyclic diamine ligands highly useful for asymmetric rearrangement of olefin oxides to allylic alcohols and thereby shortening the ligand synthesis dramatically and moreover providing with a faster access to those ligands. iii) Expanding the scope of the aza-Diels-Alder reaction by the use of spirodienes and anthracene as dienes. iv) Development and application of a new bidentate ligands for catalytic Michael addition to cyclic enones using 5 mol % ligand giving the product in 71 % ee. v) Utilisation of Chemspeed ASW 2000 in catalytic transfer hydrogenation and solving of problems regarding use of highly air sensitive reactions in an automated environment.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:uu-4640 |
| Date | January 2004 |
| Creators | Modin, Stefan |
| Publisher | Uppsala universitet, Kemiska institutionen, Uppsala : Acta Universitatis Upsaliensis |
| Source Sets | DiVA Archive at Upsalla University |
| Language | English |
| Detected Language | English |
| Type | Doctoral thesis, comprehensive summary, info:eu-repo/semantics/doctoralThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, 1104-232X ; 1032 |
Page generated in 0.0016 seconds