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US 4,225,734 AGranted
Process for producing symmetrical olefins
AssigneeThe Regents of the University of California
InventorJohn E. McMurry
Life of this patent
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Abstract
A process for the production of symmetrical olefins is provided comprising the reductive coupling of ketones and aldehydes with reactive Ti(II) and/or Ti(O) species.
Claims3
A process for the production of beta-carotene comprising first reducing Ti from an oxidation state greater than II to the reactive Ti(II) species in an inert solvent solution, thereafter reacting the reactive Ti(II) with retinal, then acidifying the reacted solution, separating beta-carotene from the acidified reacted solution with a beta-carotene solvent, and recovering the beta-carotene from the beta-carotene solvent.
Dependencies are inferred from the claim text.