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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.