CARBONYLATED COMPOUNDS PREPARATION PROCESS FROM A VEGETABLE PRODUCT AND RESULTING CARBONYLATED COMPOUNDS
The present invention refers to a carbonylated compounds preparation process from a vegetable product and resulting carbonylated compounds. The vegetable product mentioned is from renewable resources. These carbonylated compounds can be used replacing several products mainly aldehydes. The process p...
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Zusammenfassung: | The present invention refers to a carbonylated compounds preparation process from a vegetable product and resulting carbonylated compounds. The vegetable product mentioned is from renewable resources. These carbonylated compounds can be used replacing several products mainly aldehydes. The process proposed comprises the carbohydrate activation that consists on getting the carbohydrate in touch with the Lewis' acid in order to facilitate a following nucleophilic substitution process. This activation occurs at same temperature of the carbohydrate preparation process. The mixture nucleophile/carbohydrate at controlled conditions will generate substituted carbonylated compounds. This process is carried on temperatures not lower than 200C and not higher than 1050C, for running time not lower than 10 minutes. It is necessary to stabilize the resulting substituted aldehyde mixture with any suitable stabilizing agent for this purpose. Stabilizing agent proportion will vary from 0 to 5% in mass. A biocide is added in order to eliminate the possibility of bacterial degradation of any remaining non- reacted carbohydrates residual. This biocide is added in proportions that vary from O to 1% in mass.
La presente invencion se refiere a la obtencion de compuestos carbonilados a partir de productos vegetales de fuente renovable. Se pueden usar estos compuestos carbonilados en sustitucion de varios productos, normalmente aldehidos. El proceso propuesto comprende la activacion del carbohidrato que consiste en contactar el carbohidrato al catalizador de Lewis, a fin de que facilite el proceso de sustitucion nucleofilica subsiguiente. Esta activacion se efectua normalmente en las mismas temperaturas del proceso de preparacion del carbohidrato. La mezcla del carbohidrato con el nucleofilo en condiciones controladas generara los compuestos carbcnilados sustituidos. Este proceso se efectua en temperaturas no inferio.1es que 20 degree C y no superiores que 105 degree 0, por tiempos no inferiores a 10 minutos. Una vez el proceso terminado, se necesita estabilizar la mezcla de aldehidos sustituidos con algun agente estabilizador adecuado para dicho efecto. La proporcion del agente estabilizador varia de O a 5% en masa. La adicion del biocida tiene por finalidad evitar la degradacion bacteriana de residuos de carbohidratos que quiza no hayan sido transformados completamente. Se pone este biocida en proporciones que varian de O a 1% en masa. |
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