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Issue 99, 2015
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Cycling of waste fusel alcohols from sugar cane industries using supercritical carbon dioxide

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Abstract

The present study describes the clean synthesis of non-phosgene organic carbonates (NPOCs) from a selective multicomponent reaction with two important by-products from sugar and alcohol industries, namely, fusel alcohols and carbon dioxide, in the presence of 1,8-diazabicycloundecene (DBU), 1,5-diazabicyclo[4.3.0]-non-5-ene (DBN) or 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]-pyrimidine (TBD) and an alkylating agent. The bases were used for the nucleophilic activation of the alcohols. The synthesis of carbonates was carried out without solvent and confirmed by GC-MS with EI ionization mode, 1H- and 13C-NMR and FT-IR analysis. The carbonates were obtained in excellent yields. Crude fusel alcohol can be converted to alkylcarbonates. The proposed methodology can also be employed to convert other hydroxylated compounds into carbonates.

Graphical abstract: Cycling of waste fusel alcohols from sugar cane industries using supercritical carbon dioxide

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Supplementary files

Article information


Submitted
13 Aug 2015
Accepted
08 Sep 2015
First published
09 Sep 2015

RSC Adv., 2015,5, 81515-81522
Article type
Paper

Cycling of waste fusel alcohols from sugar cane industries using supercritical carbon dioxide

F. S. Pereira, L. J. Pereira, D. F. A. Crédito, L. H. V. Girão, A. H. S. Idehara and E. R. P. González, RSC Adv., 2015, 5, 81515
DOI: 10.1039/C5RA16346C

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