Epoxidação do óleo de mamona e derivados empregando o sistema catalítico VO(acac)2/TBHP

Química Nova

Marta Regina Dos Santos Nunes²  Marcia Martinelli¹  Marcelo Monteiro Pedroso¹ 

[1] ,Universidade de Caxias do Sul Departamento de Física e Química Caxias do Sul RS ,Brasil

关键词: epoxidation;    castor oil;    heterogeneous system;   

DOI  :  10.1590/S0100-40422008000400021

来源: SciELO

【 摘 要 】

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.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License