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US 7,176,336 B2Granted
Process for the synthesis of unsaturated alcohols
AssigneeDow Global Technologies LLC
InventorsBob R. Maughon, Kenneth A. Burdett, Zenon Lysenko
Life of this patent
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AssigneeDow Global Technologies LLC
InventorsBob R. Maughon, Kenneth A. Burdett, Zenon Lysenko
Estimating the term…
A process of preparing an unsaturated alcohol (olefin alcohol), such as, a homo-allylic mono-alcohol or homo-allylic polyol, involving protecting a hydroxy-substituted unsaturated fatty acid or fatty acid ester, such as methyl ricinoleate, derived from a seed oil, to form a hydroxy-protected unsaturated fatty acid or fatty acid ester; homo-metathesizing or cross-metathesizing the hydroxy-protected unsaturated fatty acid or fatty acid ester to produce a product mixture containing a hydroxy-protected unsaturated metathesis product; and deprotecting the hydroxy-protected unsaturated metathesis product under conditions sufficient to prepare the unsaturated alcohol. Preferably, methyl ricinoleate is converted by cross-metathesis or homo-metathesis into the homo-allylic mono-alcohol 1-decene-4-ol or the homo-allylic polyol 9-octadecene-7,12-diol, respectively.
A process of preparing an unsaturated alcohol comprising (a) contacting a hydroxy-protected unsaturated fatty acid or fatty acid ester, derived from a hydroxy-substituted unsaturated fatty acid or fatty acid ester, with a metathesis catalyst, and optionally a lower olefin, under metathesis conditions sufficient to produce at least one hydroxy-protected unsaturated product that is different from the hydroxy-protected unsaturated fatty acid or fatty acid ester;
A process of producing a homo-allylic mono-alcohol or homo-allylic polyol comprising (a) treating a hydroxy-substituted unsaturated fatty acid or fatty acid ester, wherein the hydroxy and unsaturated functions occupy a homo-allylic relationship, with a hydroxy-protection reagent under conditions sufficient to produce a hydroxy-protected unsaturated fatty acid or fatty acid ester;
A composition comprising 9-octadecene-7,12-diol.
Dependencies are inferred from the claim text.