Process for preparing the compound 1-decyloxy-4¬(7- oxa-4-octynyl)-oxy benzene
CA 1192228 A · Owner: Montedison S.P.A. · Inventors: Bianchini, Ennio; Massardo, Pietro; Piccardi, Paolo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is described a process for preparing the compound 1-decyloxy-4-(7-oxa-4-octynyl)-oxy -benzene consisting in condensing methyle-propargyl-ether with 1-bromo- -3-chloro-propane and in reacting the resulting intermedia te with 4-decyloxy-phenol in the presence of an alkaline hydroxide. The process can be carried out also without purifying the intermediate obtained from the first reaction.
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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 August 20, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 20, 2002.
- 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.