eprintid: 35200 rev_number: 13 eprint_status: archive userid: 8335 dir: disk0/00/03/52/00 datestamp: 2024-08-01 13:43:15 lastmod: 2024-08-16 09:08:13 status_changed: 2024-08-01 13:43:15 type: doctoralThesis metadata_visibility: show creators_name: Kotlear, Eugen A. title: Synthese von Modulen für sterisch anspruchsvolle N/O-chelatisierende Liganden subjects: ddc-540 divisions: i-120100 adv_faculty: af-12 cterms_swd: 1,2-Diketone cterms_swd: alpha-Diketone abstract: This doctoral thesis deals with derivatization of compound 1,2-bis(3,5-di-tert-butyl-2-hydroxyphenyl)-ethanedione. For this purpose, different aromatic residues were used in combination with 1,2-diketone fragment. As starting compounds for the synthesis 1,3-dimethoxybenzene, 4-tert-butylphenol and 2-naphthol were used. The focus of the synthesis was to combine those to a new 1,2- diketone and functionalize the aromatic residues with groups, that provide some steric effects. The emphasis was put on short synthesis, good yields and industrial scale up of all reactions. The second part focused on the cost-efficient synthesis of [1,1'-biphenyl]-3,3',5,5'-tetracarbaldehyde (tetraal) using commercially available stock chemicals with a scale up perspective. The third part examined the synthesis of imidazole using 1,2-diketones and tetraal according to Radziszewski synthesis. date: 2024 id_scheme: DOI id_number: 10.11588/heidok.00035200 ppn_swb: 1898866783 own_urn: urn:nbn:de:bsz:16-heidok-352001 date_accepted: 2024-07-19 advisor: HASH(0x561a62a45120) language: ger bibsort: KOTLEAREUGSYNTHESEVO20240729 full_text_status: public place_of_pub: Heidelberg citation: Kotlear, Eugen A. (2024) Synthese von Modulen für sterisch anspruchsvolle N/O-chelatisierende Liganden. [Dissertation] document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/35200/1/Dissertation.pdf