National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Preparation of cyclic derivatives of amino acids using a combination of organocatalysis and metal catalysis
Měrka, Pavel ; Veselý, Jan (advisor) ; Rýček, Lukáš (referee)
This diploma thesis is focused on the combination of enantioselective organocatalysis and transition metal catalysis. In the experimental part of the work, the optimization of reaction conditions with respect to the reaction yields, enantioselectivity and diastereoselectivity was solved. The applicability of the reaction was verified on various substrates. The second part of the work is focused on the study of the mechanism of the reaction using the methods of quantum chemistry. The kinetics of the reaction were monitored by NMR spectroscopy and the mechanism of the reaction was investigated by quantum chemistry methods. Keywords: aminocatalysis, palladium, synergistic catalysis, reaction mechanism, DFT
Theoretical studies of catalysts for Suzuki-Miyaura reaction
Měrka, Pavel ; Uhlík, Filip (advisor) ; Srnec, Martin (referee)
This thesis is focused on theoretical study of Suzuki-Miyaura cross- coupling reaction catalyzed by palladium complex with phosphinopherrocene li- gand. The aim of this work is to provide basic image of the catalytic cycle with newly prepared coordination compounds of palladium. Bromobenzene and phe- nyltriolborate were chosen as the model reagent. DFT method M06-2X was used for characterization of molecular goemetries of intermediates and most important transition states for all parts of catalytic cycle.

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