Huo Xiao-jian
2010
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Journal
Technology & Development of Chemical Industry
Abstract
Methyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate was an antioxidant and also the main raw material of antioxidant 1010,antioxidant 1076,etc.The process conditions of methyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate was studied and the yield was improved.The yield of traditional methods which used sodium methylate as catalyst was 75%~85%.Used KOH as catalyst,under the reaction condition of material ratio:n(2,6-di-tert-butyl-phenol):(methyl acrylate)=1:1.1,dropping temperature 110 ℃,dropping for 1.5h,reaction temperature 130 ℃ for 4h,after the crystallization in methanol,filtration and desiccation,the white products was got(the average yield of 95%).The melting point was 63~65 ℃.The quality of product conformed to literature.