diplomsko delo
Špela Makuc (Avtor), Martin Gazvoda (Mentor)

Povzetek

Cilj diplomske naloge je bilo raziskati reakcijo med stireni in 3-bromobenzaldehidom v prisotnosti nikljevega katalizatorja Ni(PPh3)2Cl2 pod reduktivnimi pogoji. Pri tem smo reakcije izvajali z različnimi stireni in ugotovili, da pod opisanimi pogoji potečeta dve reakciji in sicer spajanje ter redukcija. Na podlagi predhodnih raziskav in v sklopu našega raziskovalnega dela smo ugotovili, da reakcija najverjetneje poteče tako, da se in situ tvorjen nikljev hidrid najprej koordinira na stiren, tako nastali intermediat pa reagira z aril halidom – pri tem nastane nova vez ogljik-ogljik. Temu koraku sledi redukcija aldehida do hidroksilne skupine, na ta način nastane strukturno precej zapleten benzilni alkohol. S pomočjo NMR in IR spektroskopije ter HRMS analiz smo karakterizirali nastale produkte ter ugotovili, da nam je uspelo pripraviti 4 nove takšne produkte.

Ključne besede

hidroariliranje;nikelj;nikljeva kataliza;reakcija spajanja;diplomska dela;

Podatki

Jezik: Slovenski jezik
Leto izida:
Tipologija: 2.11 - Diplomsko delo
Organizacija: UL FKKT - Fakulteta za kemijo in kemijsko tehnologijo
Založnik: [Š. Makuc]
UDK: 547:66.095.257(043.2)
COBISS: 169075715 Povezava se bo odprla v novem oknu
Št. ogledov: 39
Št. prenosov: 11
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarni naslov: Hydroarylation of styrenes with aromatic aldehydes using a nickel catalyst
Sekundarni povzetek: The aim of this diploma thesis was to investigate the reaction between styrenes and 3-bromobenzaldehyde in the presence of the nickel catalyst Ni(PPh3)2Cl2 under reductive conditions. The reactions were carried out with different styrenes and it was found that under the conditions described two reactions proceed one after another, i.e. coupling and reduction. On the basis of previous studies and as part of the present research work, we have concluded that the reaction most likely proceeds by the in situ formation of a nickel hydride which first coordinates to a styrene and the resulting intermediate reacts with an aryl halide to form a new carbon-carbon bond. This step is followed by the reduction of the aldehyde to a hydroxy group, forming structurally complex benzyl alcohol. Using NMR and IR spectroscopy along with HRMS, we have characterized the resulting products and found that we have succeeded preparing 4 new such products.
Sekundarne ključne besede: hydroaryllation;nickel;catalyst;aldehyde;styrene;Stiren;Aldehidi;Katalizatorji;Univerzitetna in visokošolska dela;
Vrsta dela (COBISS): Diplomsko delo/naloga
Študijski program: 1000373
Konec prepovedi (OpenAIRE): 1970-01-01
Komentar na gradivo: Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, UNI Kemija
Strani: 37 str.
ID: 19904904