epoxidação do óleo de mamona e derivados empregando o sistema catalítico vo(acac)2/tbhp epoxidation of castor oil and its derivatives using vo(acac)2/tbhp as the catalytic system

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ID: 148375
2008
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Abstract
The alternative system VO(acac)2/TBHP was investigated for the epoxidation reaction of castor oil and its derivatives. Results of 88% of conversion, 73% of epoxidation and 82% of selectivity were obtained for the system containing 20% excess of TBHP and 1% of VO(acac)2 catalyst, during 3 h under toluene reflux. The product was characterized by GC/MS as methyl-cis-9, 10-epoxi, 12-hydroxystearate and quantitative ¹H NMR was used to calculate the data above. Preliminary results indicate that the heterogeneous system VO(acac)2 grafted on K10 clay can also promote epoxidation of castor oil.
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Authors ;Marta Regina dos Santos Nunes;Marcia Martinelli;Marcelo Monteiro Pedroso
Journal greece and rome
Year 2008
DOI
10.1590/S0100-40422008000400021
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000400021
Keywords
castor oil heterogeneous systemchemistry

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