Alkaline earth layered benzoates as reusable heterogeneous catalysts for the methyl esterification of benzoic acid
AUTOR(ES)
Maruyama, Swamy Arêa, Lisboa, Fabio da Silva, Ramos, Luiz Pereira, Wypych, Fernando
FONTE
Quím. Nova
DATA DE PUBLICAÇÃO
2012
RESUMO
This paper describes the synthesis and characterization of layered barium, calcium and strontium benzoates and evaluates the potential of these materials as catalysts in the synthesis of methyl benzoate. The methyl esterification of benzoic acid was investigated, where the effects of temperature, alcohol:acid molar ratio and amount of catalyst were evaluated. Ester conversions of 65 to 70% were achieved for all the catalysts under the best reaction conditions. The possibility of recycling these metallic benzoates was also demonstrated, evidenced by unaltered catalytic activity for three consecutive reaction cycles.
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