Process for the carbonylation of olefinically unsaturated compounds with a palladium catalyst
CA 1303058 C · Owner: Drent, Eit · Inventors: Drent, Eit
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for the carbonylation of an olefinically unsaturated compound with CO in the presence of water an alcohol and/or a, carboxylic acid and in the presence of a homogeneous catalytic system prepared by combining:-, a) a Pd(II) compound b) at least 5 mol of a triarylphosphine per gram atom Pd and, c) at least 1 mol of a non-carboxylic acid having a PKa > 2 and/or of a sterically hindered carboxylic acid having a PKa < 4.5 per mol phosphine. EARH04
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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
- Granted June 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 2009.
- 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.