Production of branched-chain fatty acids from sterculia oil |
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Authors: | Y Kai E H Pryde |
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Affiliation: | (1) The Nisshin Oil Mills Ltd., Yokohama, Japan;(2) Northern Regional Research Center, ARS, USDA, 61604 Peoria, IL |
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Abstract: | Methyl sterculate was rearranged by use of 0.5% of rhodium catalyst to isomeric conjugated diene fatty acid methyl esters
containing both methylene-and methyl-branched isomers. The rearanged products were hydrogenated directly to saturated, methyl-substituted,
branched-chain fatty acid methyl esters with the methyl substituent at one of the positions formerly occupied by the cyclopropenoid
ring. The crude branched-chain fatty acids from these esters were purified by recrystallization from a mixed solvent of ethanol
and water (80:20, v/v) and flash distillation; the product contained about 90% of branched-chain fatty acids (C19:80%, C18:10%). Esters of the branched-chain fatty acid were prepared with 2-ethylhexyl alcohol or trimethylolpropane, and the characteristic
properties of these esters were investigated. The branched-chain fatty esters appear to have potential utility in lubricants;
other uses may be possible.
Presented at the AOCS meeting in New Orleans, May 1981. |
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