Oxidation of n-substituted methylamines to n-substituted formamides
CA 1056840 A · Owner: E.I. Du Pont De Nemours And Company · Inventors: Sauer, John C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An N-substituted methylamine is reacted in a liquid homogeneous system with molecular oxygen in the presence of a soluble halide of certain metals to produce an N-substituted formamide. Exemplary is the reaction of trimethylamine with oxygen in the presence of cupric chloride to produce dimethylformamide. - 1 -
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
- Granted June 19, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 19, 1996.
- 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.