From Sugar to Furfural Compounds Using Flow Chemistry
Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Due to the need to find alternatives for the current fossil-based chemical industry, the use of blo-sourced platform chemicals as building blocks for the synthesis of a wide range of industrial and consumer chemicals has gained significantly in importance over the past years.
In this context, 5-(chloromethyl)furfural (CMF) could become a very interesting target for the implementation of a sugar-based biorefinery. Originating from the dehydration of cellulose, hemlcellulose or sugar, it can for example be a precursor of bio-fuels and/or fuel additives. However, there are very few published examples on the CMF synthesis as well as its ability to be further converted in interesting derivatives.
A simple procedure for the conversion of sugar-based feedstocks to CMF, using flow chemistry, is reported in this master thesis. Sucrose and High Fructose Corn Syrup (HFCS-90 and HFCS-55) were shown to be suitable feedstocks. The use of HFCS-90 has been demonstrated to be particularly promising, as it could be converted in a stable process which yields 70% of CMF.
As a proof of concept, condensation reactions of 5-methylfurfural (MF) and CMF were performed with amine compounds, thus expanding the existing pool of CMF derivatives. MF condensations could be performed under harsh conditions, whereas CMF required milder treatments. Very high conversions were observed, especially when using aliphatic amines as starting materials.
Place, publisher, year, edition, pages
2015. , 82 p.
Renewable chemicals, 5-(chloromethyl)furfural (CMF), Flow chemistry, High Fructose Corn Syrup (HFCS), !mines
Other Chemical Engineering
IdentifiersURN: urn:nbn:se:kth:diva-173838OAI: oai:DiVA.org:kth-173838DiVA: diva2:855383