Process for preparing amides from nitriles and amines
CA 1269392 C · Owner: Osaka University · Inventors: Naota, Takeshi; Murahashi, Shunichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, Amide compounds are efficiently prepared directly from nitriles, amines and water using a, reaction catalyst. The invention also can apply to the manufacture of polyamides, and then realize a simplified and rationalized process for polyamide synthesis. The catalyst employable is at least one metal compound selected from the group consisting of Ru- Rh-, Zn-, Ni-, Mo-, Cu-, Co-, Ti-, Cr- Zr-, Os-, Pd-, Se-, Fe-, Pb-, Hg-, V-, Cd- Ir- and Pt-compounds.
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 May 22, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 22, 2007.
- 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.