Process for the preparation of 3-alkylaminophenols
CA 1206481 A · Owner: Clariant Gmbh · Inventors: Muller, Werner H.; Reimann, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a process for the preparation of 3-alkylaminophenols by catalytic dehydrogenation of 3-alkylamino-2-cyclohexenones. The dehydrogenation reaction is carried out in the gas phase at 200 to 500°C and 0.1 to 10 bar. The catalyst used is preferably a noble metal of the 8th group, in particular palladium which is applied to a support material.
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 24, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 24, 2003.
- 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.