The glyceryl ethers in the liver oils of elasmobranch fish*

The glyceryl ethers from the liver oils of the grey dogfish, the Greenland shark, and the ratfish were isolated by chromatography on alumina. These ethers were then converted into the corresponding dimethoxy derivatives, which were rechromatographed on alumina and then submitted to gas-liquid chroma...

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Main Authors: Bo Hallgren, Sam Larsson
Format: Article
Language:English
Published: Elsevier 1962-01-01
Series:Journal of Lipid Research
Online Access:http://www.sciencedirect.com/science/article/pii/S0022227520404444
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author Bo Hallgren
Sam Larsson
author_facet Bo Hallgren
Sam Larsson
author_sort Bo Hallgren
collection DOAJ
description The glyceryl ethers from the liver oils of the grey dogfish, the Greenland shark, and the ratfish were isolated by chromatography on alumina. These ethers were then converted into the corresponding dimethoxy derivatives, which were rechromatographed on alumina and then submitted to gas-liquid chromatography (GLC). By these means the presence of several new glyceryl ethers was demonstrated. Besides chimyl, batyl, and selachyl alcohols, compounds with saturated C14, and monounsaturated C16, C20, and C22 chains were found. Small amounts of a glyceryl ether with a C18 chain with two double bonds were also present. By oxidation with chromic acid, the position of the double bond in the hexadecenyl chain was found to be 9: 10; in the eicosenyl and the docosenyl chains the double bond was in position 13: 14. The molecular weight of the dimethoxy derivatives was determined by mass spectrometry. The mass spectrometric fragmentation pattern provided additional proof of the structure of the compounds.
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spelling doaj.art-575f3c3c67514857b3acbcf082b933c12022-12-21T20:08:12ZengElsevierJournal of Lipid Research0022-22751962-01-01313138The glyceryl ethers in the liver oils of elasmobranch fish*Bo Hallgren0Sam Larsson1Department of Medical Biochemistry, University of Gothenburg, Gothenburg, SwedenDepartment of Medical Biochemistry, University of Gothenburg, Gothenburg, SwedenThe glyceryl ethers from the liver oils of the grey dogfish, the Greenland shark, and the ratfish were isolated by chromatography on alumina. These ethers were then converted into the corresponding dimethoxy derivatives, which were rechromatographed on alumina and then submitted to gas-liquid chromatography (GLC). By these means the presence of several new glyceryl ethers was demonstrated. Besides chimyl, batyl, and selachyl alcohols, compounds with saturated C14, and monounsaturated C16, C20, and C22 chains were found. Small amounts of a glyceryl ether with a C18 chain with two double bonds were also present. By oxidation with chromic acid, the position of the double bond in the hexadecenyl chain was found to be 9: 10; in the eicosenyl and the docosenyl chains the double bond was in position 13: 14. The molecular weight of the dimethoxy derivatives was determined by mass spectrometry. The mass spectrometric fragmentation pattern provided additional proof of the structure of the compounds.http://www.sciencedirect.com/science/article/pii/S0022227520404444
spellingShingle Bo Hallgren
Sam Larsson
The glyceryl ethers in the liver oils of elasmobranch fish*
Journal of Lipid Research
title The glyceryl ethers in the liver oils of elasmobranch fish*
title_full The glyceryl ethers in the liver oils of elasmobranch fish*
title_fullStr The glyceryl ethers in the liver oils of elasmobranch fish*
title_full_unstemmed The glyceryl ethers in the liver oils of elasmobranch fish*
title_short The glyceryl ethers in the liver oils of elasmobranch fish*
title_sort glyceryl ethers in the liver oils of elasmobranch fish
url http://www.sciencedirect.com/science/article/pii/S0022227520404444
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