Termičke transformacije difuranskih derivata o-divinilbenzena u kiselim uvjetima

undergraduate thesis

• Title (english): Thermal transformations of difuran derivatives of o-divinylbenzene in acidic media
• Author: Nina Kamberovski
• Mentor: Dragana Vuk (mentor)
• Committee member: Dragana Vuk (predsjednik povjerenstva)
• Committee member: Irena Škorić (član povjerenstva)
• Committee member: Anamarija Rogina (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2019-09-19, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Chemistry

Abstract

Cilj istraživanja je ispitivanje termičke reaktivnosti difuranskih derivata o-divinilbenzena. U tu svrhu sintetizirani su početni spojevi 5-metil-2-furilni (1) i 2-benzofurilni derivat o-divinilbenzena (2) Wittigovom reakcijom iz difosfonijeve soli α,α'-o-ksilendibromida i odgovarajućeg aldehida. Nastale smjese izomera podvrgnute su termičkim reakcijama u neutralnom i kiselom mediju. Reakcijom u neutralnom mediju, metilni derivat 1 nije dao nove produkte, dok je u kiselom mediju pokazao reaktivnost pri čemu su nastala 4 nova produkta, ciklizacijski derivati 3 i 4, te indanski derivati 5 i 6. Dobiveni produkti su izolirani te spektroskopski okarakterizirani. Benzofuranski derivat 2 nije dao nove produkte niti u neutralnom niti u kiselom mediju.

Abstract (english)

The aim of the research is to study the thermal reactivity of difuran derivatives of o-divinylbenzene. For this purpose, the initial compounds of 5-methyl-2-furyl (1) and the 2-benzofuryl derivative of o-divinylbenzene (2) were synthesized by the Wittig reaction from the diphosphonium salt of α,α'-o-xylenedibromide and the corresponding aldehyde. The mixtures of isomers are subjected to thermal reactions in neutral and acidic media. Methyl derivative 1 in neutral medium did not give new products, while in acidic medium the 4 new products were formed, cyclization derivatives 3 and 4, and indane derivatives 5 and 6. The obtained products were isolated and spectroscopically characterized. Benzofuran derivative 2 did not show any reactivity in neutral or acidic medium.

• Keywords: furan; o-divinilbenzen; termičke reakcije
• Keywords (english): furan; o-divinylbenzene; thermal reactions
• Language: croatian
• URN:NBN: urn:nbn:hr:149:581035
• Study programme: Title: 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 resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-05-24 08:51:02