Selective, catalytic, thermal functionalization of secondary or aromatic c-h cyclic hydrocarbon bonds
CA 2480571 A1 · Owner: Yale University · Inventors: Semple, Thomas Carl; Hartwig, John F.; Chen, Huiyuan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A catalytic process having more than 50 turnovers comprises thermally activating a catalysis in the presence, of a functionalizing reagent and a cyclic hydrocarbon comprising an aromatic compound or a cycloparaffin compound lacking primary C-H bonds. The catalyst comprises (a) a source of a transition metal; (b) a source of a 3 to 8 cyclic or non-cyclic, aromatic or non-aromatic neutral, cationic or anionic, substituted or unsubstituted electron, donor moiety which does not dissociate under thermal reaction conditions; a.nd (c) a source of ligands capable of formally donating an electron pair to the transition metal (a) and which dissociate thermally; and wherein said functionalizing …
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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 March 1, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 1, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 1, 2023.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.