From Symmetric Glycerol Derivatives to Dissymmetric Chlorohydrins

Autor: Gemma Villorbina, Mercè Balcells, Ramon Canela, Jordi Eras, Marc Escribà, Carmen Solarte
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Molecules, Vol 16, Iss 3, Pp 2065-2074 (2011)
Druh dokumentu: article
ISSN: 1420-3049
DOI: 10.3390/molecules16032065
Popis: The anticipated worldwide increase in biodiesel production will result in an accumulation of glycerol for which there are insufficient conventional uses. The surplus of this by-product has increased rapidly during the last decade, prompting a search for new glycerol applications. We describe here the synthesis of dissymmetric chlorohydrin esters from symmetric 1,3-dichloro-2-propyl esters obtained from glycerol. We studied the influence of two solvents: 1,4-dioxane and 1-butanol and two bases: sodium carbonate and 1-butylimidazole, on the synthesis of dissymmetric chlorohydrin esters. In addition, we studied the influence of other bases (potassium and lithium carbonates) in the reaction using 1,4-dioxane as the solvent. The highest yield was obtained using 1,4-dioxane and sodium carbonate.
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