Preparation of the addition products of alpha-tocopherol with cholesteryl linoleate-peroxyl radicals |
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| Authors: | Yamauchi Ryo Kamatani Toshifumi Shimoyamada Makoto Kato Koji |
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| Institution: | Department of Bioprocessing, Faculty of Agriculture, Gifu University, Japan. yamautir@cc.gifu-u.ac.jp |
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| Abstract: | a-Tocopherol was reacted with cholesteryl linoleate hydroperoxides (Ch18:2-OOH) in the presence of an iron-chelate, Fe(III) acetylacetonate, at 37 degrees C in benzene. The reaction products were isolated and identified as four positional isomers of cholesteryl (8a-dioxy-alpha-tocopherone)-epoxyoctadecenoates and two positional isomers of cholesteryl (8a-dioxy-alpha-tocopherone)-octadecadienoates. The result indicates that the peroxyl radicals from Ch18:2-OOH react with the 8a-carbon radical of alpha-tocopherol to form the addition products. |
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