Process for producing carbonyl compound
CA 2481550 A1 · Owner: Sato, Kazuhiko · Inventors: Hayashi, Teruyuki; Mizushima, Eiichiro; Sato, Kazuhiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for industrially advantageously producing a carbonyl compound by causing the hydration of the corresponding alkyne compound to proceed efficiently from the standpoints of rotational speed of a catalyst yield, and , rate. The process for carbonyl compound production is characterized by reacting an alkyne compound with water in an organic solvent in the presence of a gold catalyst comprising an organogold complex compound and of an acid.
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 6, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 6, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 2025.
- 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.