Priprava novih "zelenih" otapala reakcijama metateze

undergraduate thesis

• Title (english): Green solvents preparation by metathesis reactions
• Author: Ana Potočki
• Mentor: Jasna Vorkapić-Furač (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Biochemical Engineering); (Laboratory for Cell Technology, Application and Biotransformations); Zagreb
• Defense date and country: 2010-09-16, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Biotechnology

Abstract

Ionske tekućine su soli sa slabo vezanim ionima pa su na temperaturi ispod 100 °C, ili čak i na sobnoj temperaturi, u obliku tekućine. Zbog svojih privlačnih fizikalnih i kemijskih svojstava, ionske se tekućine upotrebljavaju u širokom spektru. Metilimidazolijevi i piridinijevi ioni su dokazano dobri kao početni spojevi za razvoj ionskih tekućina. U ovom je radu krajnji cilj bio sintetizirati nove kvaterne spojeve 1-metilimidazola. Ovi spojevi su pripravljeni reakcijom 1-metilimidazola s vodikovim peroksidom pri čemu je dobiven 1-metilimidazol-N-oksid [1] iz kojega se dalje odvijala sinteza novih spojeva: 3-metil-1-pentoksiimidazolijeva bromida [2], 1-heptoksi-3-metilimidazolijeva bromida [3], 3-metil-1-pentoksiimidazolijeva heksafluorfosfata [4], 1-heptoksi-3-metilimidazolijeva heksafluor- fosfata [5], 3-metil-1-pentoksiimidazolijeva trifluormetansulfonimida [6], 1-heptoksi-3-metilimidazolijeva trifluormetansulfonimida [7]. Struktura spojeva [2]-[7] određena je pomoću podataka dobivenih IR-spektroskopijom te 1H- i 13C- nuklearno-magnetskom rezonancijom.

Abstract (english)

Ionic liquids are salts in which the ions are poorly coordinated, resulting in the fact that these solvents are liquids below 100 °C, or even at room temperature. Due to their attractive physical and chemical properties, they are used in a wide variety of applications. The methylimidazolium and pyridinium ions have proven to be good starting materials for the development of ionic liquids. In this final work, the ultimate goal was the synthesis of new 1-methylimidazole quaternary salts. These compounds were prepared by reaction of 1-methyl- imidazole with hydrogen peroxide into 1-methylimidazole-N-oxide [1] which was further transformed into compounds 3-methyl-1-pentoxyimidazolium bromide [2], 1-heptoxy-3-methylimidazolium bromide [3], 3-methyl-1-pentoxyimidazolium hexafluorofosfate [4], 1-heptoxy-3-methylimidazolium hexafluorofosfate [5], 3-methyl-1-pentoxyimidazolium trifluromethanesulfonimide [6], 1-heptoxy-3-methylimidazolium trifluromethanesulfonimide [7]. Structures of compounds [2]-[7] were determined according to the data obtained by IR-spectroscopy as well as 1H- and 13 C-nuclear magnetic resonance.

• Keywords: imidazolijeve soli; ionske tekućine; reakcija metateze; ”zelena otapala”
• Keywords (english): “green solvents”; imidazolium salts; ionic liquids; metathesis reaction
• Language: croatian
• URN:NBN: urn:nbn:hr:159:252847
• Study programme: Title: Biotechnology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka biotehnologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka biotehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2017-06-02 11:33:46