Process for the preparation of tertiary carbinols containing an aminic substituent
CA 1340055 C · Owner: Gruppo Lepetit S.P.A. · Inventors: Bellasio, Elvio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the preparation of tertiary diphenyl carbinols containing a primary or secondary amine substituent on the aliphatic moiety attached to the carbinol function which consists in contacting a Grignard phenyl reagent with an amino-acid wherein the mobile protons are not masked in an aprotic inert organic solvent or a mixture thereof at a temperature between 20°C and the boiling temperature by the reaction mixture. The reaction products are useful as active ingredients of medicaments and intermediates for the manufacture thereof.
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 September 22, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 22, 2015.
- 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.