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undergraduate thesis
Sinteza i karakterizacija 2-piridinskih derivata stilbena
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. urn:nbn:hr:149:159719
Dragojević, Milena
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

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Dragojević, M. (2017). Sinteza i karakterizacija 2-piridinskih derivata stilbena (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:159719

Dragojević, Milena. "Sinteza i karakterizacija 2-piridinskih derivata stilbena." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:149:159719

Dragojević, Milena. "Sinteza i karakterizacija 2-piridinskih derivata stilbena." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:149:159719

Dragojević, M. (2017). 'Sinteza i karakterizacija 2-piridinskih derivata stilbena', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 25 August 2024, https://urn.nsk.hr/urn:nbn:hr:149:159719

Dragojević M. Sinteza i karakterizacija 2-piridinskih derivata stilbena [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2017 [cited 2024 August 25] Available at: https://urn.nsk.hr/urn:nbn:hr:149:159719

M. Dragojević, "Sinteza i karakterizacija 2-piridinskih derivata stilbena", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:149:159719

Metadata
TitleSinteza i karakterizacija 2-piridinskih derivata stilbena
Title (english)Synthesis and characterization of styryl-2-pyridines
AuthorMilena Dragojević
MentorIrena Škorić (mentor)
Committee memberIrena Škorić (predsjednik povjerenstva)
Committee memberIvana Šagud (član povjerenstva)
Committee memberLidija Furač (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2017-07-14, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Organic Chemistry
Abstract
U cilju proučavanja utjecaja piridinske jezgre kao supstituenta na fotokemijsko ponašanje konjugiranih distilbenskih sustava, Wittigovom reakcijom sintetiziran je 1,2-bis(2-(piridin-2-il)vinil)benzen kao smjesa geometrijskih izomera. Iz smjese geometrijskih izomera uspješno su izolirani 2-[(E)-2-{2-[(E)-2-(piridin-2-il)etenil]fenil}etenil]piridin i 2-[(Z)-2-{2-[(E)-2-(piridin-2-il)etenil]fenil}etenil]piridin. Novosintetizirani derivat podvrgnut je fotokemijskim reakcijama na 300 nm i 350 nm u smislu priprave novih distilbenskih struktura fotokemijskom metodologijom. Početni spojevi pokazali su različita fotokemijska svojstva. Fotokemijska reakcija spoja 1,2-bis(2-(piridin-2-il)vinil)benzena (1') dovodi do stvaranja dimernog produkta, 1,2,3,4-tetra(piridin-2-il)ciklobutana (3'), također nastali su i neki novi intermedijari koje nismo uspjeli izolirati kromatografski jer su nestabilni i raspadaju se. Polazni spoj, kao i fotokemijski produkt okarakterizirani su modernim spektroskopskim metodama (jednodimenzionalni i dvodimenzionalni NMR, UV/VIS spektroskopijom).
Abstract (english)
For the purpose of studying the impact of the pyridine base as a substituent on the photochemical behavior of conjugated distilbene systems 1,2-bis(2-(piridine-2-il)vinyl)benzene (1’) has been synthesized using Wittig's. 2-[(E)-2-{2-[(E)-2-(pyridine-2-il)ethenyl]phenyl}ethenyl]pyridine and 2-[(Z)-2-{2-[(E)-2-(pyridine-2-il)ethenyl]phenyl}ethenyl]pyridine have been successfully isolated. Newly synthesized derivate was subjected to photochemical reactions at 300 nm and 350 nm to obtain new polycyclic structures via photochemical methodology. Photochemical reaction of 1,2-bis(2-(piridine-2-il)vinyl)benzene leads to dimer product 1,2,3,4-tetra(pyridin-2-yl)cyclobutane (3’). Unidentified intermediated compounds were seen in raw spectra that couldn't be isolated due to their chromatographic instability and subsequent decomposition. Initial compound, as well as photochemical product 3’, has been characterized with modern spectroscopic methods (one-dimensional and two-dimensional NMR, UV/VIS spectroscopy).
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:159719
Study programmeTitle: Applied Chemistry - Undergraduate study; specializations in: Environmental chemistry and green technologies, Advanced materials and technologies, Applied organic chemistry
Course: Applied organic chemistry
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) primijenjene kemije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) primijenjene kemije)
Type of resourceText
File originBorn digital
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Created on2021-01-08 10:49:32