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- W2069472331 abstract "Summary Autoxidation of methyl oleate and oleic acid beyond the peak peroxide values followed by catalytic hydrogenation gave mixed monohydroxystearic acids in high yield. The complicated autoxidation mixture which contains peroxides, hydroxy, carbonyl, and oxirane compounds was simplified considerably in composition by this procedure. For complete reduction of the double bond, and the carbonyl and oxirane groups, hydrogenation was conducted at about 150° and 150 lbs.. Peroxides were reduced at room temperature. Catalysts used were palladium on carbon and Raney nickel. The selective reduction of peroxides in autoxidation mixtures has been studied by chemical and catalytic means. Peroxides were converted largely to carbonyl compounds rather than to the anticipated hydroxy compounds. Palladium‐lead on calcium carbonate is an excellent catalyst for reducing peroxides with hydrogen. tert ‐Butyl hydroperoxide, 12‐ ketostearic acid, stearone, cis ‐9,10‐epoxystearic acid and methyl oleate peroxide concentrate were employed as model substances in determining hydrogenation conditions." @default.
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- W2069472331 date "1955-04-01" @default.
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- W2069472331 title "Reactions of fatty materials with oxygen. XVIII. Catalytic hydrogenation of autoxidized methyl oleate and oleic acid. Preparation of monohydroxystearic acids" @default.
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- W2069472331 doi "https://doi.org/10.1007/bf02649017" @default.
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