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[BMIM][PF6] Promotes the synthesis of halohydrin esters from diols using potassium halides

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Issue date
2008
Author
Oromí Farrús, Mireia
Eras i Joli, Jordi
Villorbina Noguera, Gemma
Torres i Grifo, Mercè
Llopis-Mestre, Verónica
Welton, Tom
Canela i Garayoa, Ramon
Suggested citation
Oromí Farrús, Mireia; Eras i Joli, Jordi; Villorbina Noguera, Gemma; Torres i Grifo, Mercè; Llopis-Mestre, Verónica; Welton, Tom; Canela i Garayoa, Ramon; . (2008) . [BMIM][PF6] Promotes the synthesis of halohydrin esters from diols using potassium halides. Analytical sciences, 2008, vol. 24, núm. 10, p. 1341-1345. https://doi.org/10.2116/analsci.24.1341.
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Abstract
Haloesterification of diverse diols with various carboxylic acids was achieved using potassium halides (KX) as the only halide source in ionic liquids. The best yield was obtained in [BMIM][PF6] when 1,2-octanediol, palmitic acid and KBr were used. This yield was 85% and the regioisomer with the bromine in primary position was present in a 75:25 ratio. The regioisomeric ratio could be improved using either KCl or some phenylcarboxylic acids. [BMIM][PF6] acts as both reaction media and catalyst of the reaction. To the best of our knowledge, this type of combined reaction using an ionic liquid is unprecedented. The other solvents tested did not lead either to the same yield or to the same regioisomeric ratio.
URI
http://hdl.handle.net/10459.1/1868
DOI
https://doi.org/10.2116/analsci.24.1341
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Analytical sciences, 2008, vol. 24, núm. 10, p. 1341-1345
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