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AssigneeDow Global Technologies LLC
InventorsThomas H. Newman, Cynthia L. Rand, Kenneth A. Burdett, Bob R. Maughon, Donald L. Morrison, Eric P. Wasserman
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An olefin metathesis process involving contacting an unsaturated fatty acid ester or unsaturated fatty acid, such as methyloleate or oleic acid, with a lower olefin, preferably ethylene, in the presence of a metathesis catalyst so as to prepare a first product olefin, preferably, a reduced chain α-olefin, such as methyl-9-decenoate or 9-decenoic acid, respectively. The metathesis catalyst contains ruthenium or osmium and a chelating ligand, preferably, a chelating ligand containing a carbene moiety and a second donor moiety of a Group 15 or 16 element Optionally, the catalyst can be supported on a catalyst support, such as, a cross-linked polymeric resin.
An olefin metathesis process comprising contacting an unsaturated fatty acid ester or unsaturated fatty acid with a lower olefin in the presence of a metathesis catalyst under process conditions sufficient to prepare a first olefin product and an ester-functionalized or acid-functionalized second olefin product, the catalyst comprising ruthenium or osmium and a chelating ligand.
An olefin metathesis process comprising contacting an unsaturated fatty acid ester or unsaturated fatty acid, the unsaturated reactant having an unsaturated fatty acid segment of greater than about 8 and less than about 25 carbon atoms, with ethylene in the presence of a metathesis catalyst under process conditions sufficient to prepare a reduced-chain α-olefin and a reduced-chain terminal ester or acid-functionalized α-olefin, the metathesis catalyst comprising ruthenium and a chelating ligand, optionally supported on a catalyst support.
A heterogeneous catalyst composition comprising an organometallic complex and a catalyst support, wherein the organometallic complex comprises a ruthenium or osmium atom and a chelating ligand, the chelating ligand having a carbene moiety and an electron donor moiety of an element from Group 15 or Group 16 of the Periodic Table, both the carbene moiety and the electron donor moiety being bonded to the ruthenium or osmium atom;
Dependencies are inferred from the claim text.