o:22540 Dekarbonilativno bromovanje i dekabronilovanje aromatičnih i heteoaromatičnih aldehida doktorska disertacija Decarbonylative bromination and decarbonylation of aromatic and heteroaromatic aldehydes : doctoral dissertation sr Sintetisan je i okarakterisan katalizator magnetnih osobina na bazi paladijuma (Pd/Fe2O3) kao i katalizator na bazi paladijuma gde je kao nosač upotrebljena bakterijska nanoceluloza (Pd/BNC) i ispitana je njihova primena u reakciji dekarbonilovanja aldehida. Optimizovani reakcioni uslovi primenjeni su na aromatičnim i heteroaromatičnim aldehidima i na alifatičnim aldehidima koji imaju vodonikove atome na α- i δ-ugljenikovim atomima. Istovremeno, određen je mehanizam reakcije dekarbonilovanja i ispitana je mogućnost reciklovanja katalizatora. Pored reakcije dekarbonilovanja sintetisani katalizator Pd/Fe2O3 upotrebljen je i u reakciji reduktivnog dehalogenovanja arilhalogenida. U nastavku istražena je i reakcije dekarbonilativnog bromovanja 5-ariltiofen-2-karbaldehida. Eksperimentalnim i računarskim metodama ispitan je mehanizam reakcije kao i njena primena u sintezi triarilsupstituisanih tiofena. Palladium-based catalysts obtained by palladium immobilization on maghemite (Pd/ γ-Fe2O3) and bacterial nanocellulose (Pd/BNC) as solid supports were synthesized and characterized and their application in the decarbonylation reaction was investigated. Optimized reaction conditions were applied to a series of aromatic and heteroaromatic aldehydes as well as to several aldehydes having alpha and beta hydrogen atoms. The mechanism of the mentioned transformation as well as the possibility of catalyst recycling has also been investigated. In addition to the decarbonylation reaction, the synthesized catalyst Pd/γ-Fe2O3 was used in the reductive dehalogenation reaction of arylhalides. The decarbonylative bromination reaction of 5-arylthiophene-2-carbaldehydes was also investigated. By combining experimental and computational methods, the mechanism of this reaction was examined, as well as its application to the synthesis of triaryl-substituted thiophene derivatives. Hemija- Organska hemija/ Chemistry - Organic chemistry Datum odbrane: 08.11.2019. dekarbonilovanje, dehalogenovanje, dekarbonilativno bromovanje, paladijum, kataliza decarbonylation, dehalogenation, decarbonylative bromination, palladium, catalysis yes 51816719 91552101 7600 91552100 51816719 2020-09-23T14:40:54.053Z 45 no 46 mentor Vladimir, 1991-, 33388391 Ajdačić 2019 63 mentor Igor, 1977-, 13797479 Opsenica 2019 63 član komisije Bogdan, 1951-, 12356967 Šolaja 2019 63 član komisije Mario, 1963-, 12648295 Zlatović 2019 63 član komisije Bojan Z., 1983-, 14048871 Vulović 2019 63 član komisije Dejan, 1977-, 32015719 Gođevac 2019 142 lista 8665183 http://phaidrabg.bg.ac.rs/o:22540 no yes 4 2020-09-23T14:40:54.320Z 70 11 1066775 1066794 1066795 dekarbonilovanje, dehalogenovanje, dekarbonilativno bromovanje, paladijum, kataliza decarbonylation, dehalogenation, decarbonylative bromination, palladium, catalysis 547.2:544.3/.4(043.3) 1738 11A19 2019