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- W2007048206 abstract "Abstract Methyl linolenate hydrogenated at 140°C, with 0.5% Ni catalyst and 1.1 mole of hydrogen at atmospheric pressure was separated into octadecenoate, octadecadienoate, and octadecatrienoate fractions by countercurrent distribution. Gas chromatography on a 200‐ft. capillary Apiezon L column revealed one component in the triene fraction, four in the diene fraction, and nine in the monoene fraction. These components were partially fractionated by low‐temperature crystallization, and their solubilities were correlated with alkali conjugation results, with infrared data for cis and trans configuration of bonds and with dibasic acids isolated from the fractions after oxidative cleavage. Approximately 45% of trans acids were present in both the monoene and diene fractions. Considerable migration of double bonds from the original 9, 12, and 15 positions occurred. Cis, cis dienes which could not be conjugated by alkali were formed. Little alteration of the residual methyl linolenate was observed. The results demonstrate the applicability and utility of new techniques of fractionation and analysis to the study of the hydrogenation mechanism." @default.
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- W2007048206 date "1960-11-01" @default.
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- W2007048206 title "Hydrogenation of linolenate. I. Fractionation and characterization studies" @default.
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- W2007048206 doi "https://doi.org/10.1007/bf02631605" @default.
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