Producción CyT
Artículo
Autoría
GUTIERREZ, LEANDRO GABRIEL
;
Mancini, Pedro Maximo Emilio
;
Kneeteman, Maria Nelida
;
FERRETTI, CRISTIAN ALEJANDRO
Fecha
2022
Editorial y Lugar de Edición
Taylor & Francis
Revista
Indian Chemical Engineer,
vol. 65
(pp. 90-100)
- ISSN 0019-4506
Taylor & Francis
Taylor & Francis
ISSN
0019-4506
Resumen
Información suministrada por el agente en
SIGEVA
A procedure was studied for synthesising isoamyl salicylate by transesterifying methyl salicylate with isoamyl alcohol. The transesterification reaction was evaluated using catalysts with different acid-base properties in microwave irradiation or conventional heating. The amounts of methyl salicylate and isoamyl salicylate in samples were analysed by Gas Chromatography. Acids and neutral catalysts showed zero or shallow catalytic activity, while the most actives were the basic catalysts. Methyl...
A procedure was studied for synthesising isoamyl salicylate by transesterifying methyl salicylate with isoamyl alcohol. The transesterification reaction was evaluated using catalysts with different acid-base properties in microwave irradiation or conventional heating. The amounts of methyl salicylate and isoamyl salicylate in samples were analysed by Gas Chromatography. Acids and neutral catalysts showed zero or shallow catalytic activity, while the most actives were the basic catalysts. Methyl salicylate conversions (higher than 60%) were obtained at 120°C in 4 h of reaction under the Microwave irradiation procedure, using 1% wt. Ca(OH)2, MeONa, or LiOH as catalysts. Under these optimised conditions, using LiOH as a catalyst, it could obtain yields of isoamyl salicylate of 98% in 4 h. Finally, under experimental conditions of isoamyl salicylate synthesis, LiOH did not present catalytic homogeneous contribution.
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Palabras Clave
METHYL SALICYLATEISOAMYL SALICYLATEACID-BASIC CATALYSTSTRANSESTERIFICATIONMICROWAVE-ASSISTED SYNTHESIS
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