Oxidation of terminal olefins to aldehydes
CA 2064378 A1 · Owner: Union Carbide Chemicals & Plastics Technology Corporation · Inventors: Wenzel, Timothy T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of Disclosure, A process for the oxidation of a compound having a terminal carbon-carbon double bond to produce the corresponding aldehyde is disclosed. In one embodiment the, process comprises contacting the compound with molecular oxygen in the presence of a Group VIII metal component initially substantially free of NO ligands and NO2 ligands in an amount effective to promote the oxidation of the compound a reoxidation component in an amount effective to reoxidize a reduced Group VIII metal component to the Group VIII metal component and at least one alcohol selected from secondary alcohols, tertiary alcohols and mixtures thereof in an amount effective to increase the aldehyde …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed March 27, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 27, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.