Transition metal complexes with proton sponges as ligands
CA 2435773 A1 · Owner: Krebs, Bernt · Inventors: Schuth, Ferdi; Kaska, William C.; Stucky, Galen D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Transition metal complexes with chino7,8-hchinolines and cyclopentadieno1,2h: 4,3-h'dichinolines as proton sponge ligands and method for the production thereof. Said complexes are suitable as catalysts e.g. palladium complexes for a Heck reaction and for amination and C-H activation reactions. The platinum and palladium complexes are potentially good cytostatics.
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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 January 19, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 19, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 19, 2024.
- 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
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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.