Efficient synthesis of 5-(hydroxymethyl)furfural esters from polymeric carbohydrates using 5-(chloromethyl)furfural as a reactive intermediate

TitleEfficient synthesis of 5-(hydroxymethyl)furfural esters from polymeric carbohydrates using 5-(chloromethyl)furfural as a reactive intermediate
Publication TypeJournal Article
Year of Publication2022
AuthorsBhat, NSubray, Hegde, SL, Dutta, S, Sudarsanam, P
JournalACS Sustainable Chemistry & Engineering
Volume10
Issue18
Pagination5803-5809
Date PublishedMAY
Type of ArticleArticle
ISSN2168-0485
Keywordscatalysis, cellulose, furanics, HMF-esters, renewable synthesis
Abstract

This work reports an efficient, gram-scale synthesis of 5-(hydroxymethyl)furfural (HMF) esters using biomass-derived 5-(chloromethyl)furfural (CMF) as a reactive intermediate. The HMF-esters have potential applications as chemicalintermediates, fuel additives, and bioactive compounds. Initially, CMF was prepared in good yields directly from polymericcarbohydrates (starch, inulin, and cellulose) and cellulosic materials (cotton andfilter paper) using a biphasic batch reaction system,consisting of aqueous hydrochloric acid and 1,2-dichloroethane. The use of ZnCl2as an additive allowed the reaction to proceedunder milder conditions while significantly improving the isolated yield of CMF. The effects of reaction temperature, reaction time,extracting solvent, and ZnCl2loading on CMF yield were investigated. Microcrystalline cellulose was converted into CMF with a72% isolated yield under optimized reaction conditions (80 degrees C, 2 h). After that, CMF was transformed into various novel esters ofHMF in excellent isolated yields (>85%) by reacting with a slight excess amount of the triethylammonium salt of various alkyl/arylcarboxylic acids under solvent-free conditions

DOI10.1021/acssuschemeng.1c08571
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)

9.224

Divison category: 
Catalysis and Inorganic Chemistry
Database: 
Web of Science (WoS)

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