N,n'-1,3-propandiylbis(2,2-dimethyl propanamide) and a process for preparing 2-alkylpyrimidines
CA 1303040 C · Owner: Pews, Richard G. · Inventors: Pews, Richard G.
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 making 2-alkylpyrimidines which comprises dehydrogenating a 2-alkyltetrahydropyrimidine in a vapor phase reactor in the absence of oxygen and in which no water is added over a supported noble metal catalyst and the compound N,N'-1,3-propandiylbis(2,2-dimethylpropanamide). The process provides a preparation of 2-alkylpyrimidines in high yields and purity in a simple one step 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 June 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 2009.
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Timeline
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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.