Epoxidation of castor oil and its derivatives using VO(acac)2/TBHP as the catalytic system

Química Nova

Pedroso, Marcelo Monteiro¹  Universidade de Caxias do Sul, Caxias do Sul, Brasil¹  Nunes, Marta Regina dos Santos¹  Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasil¹  Martinelli, Marcia¹ 

关键词: epoxidation;    castor oil;    heterogeneous system.;   

DOI  :  10.1590/S0100-40422008000400021

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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】

Unknown