Process for preparing a basic thioether and the salt thereof
CA 1262913 C · Owner: Koczka, Eva Nee Falta · Inventors: Somogyi, Tibor; Lang, Tibor; Bobak, Dora Nee Szekeres
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A b s t r a c t, The invention relates to a new process for preparing 1-{2-5-dimethylaminomethyl-2-(furylmethylthio)- -ethy}amino-1-methylamino-2-nitroethylene of the formula (I), (I), and its hydrochloride, which comprises reacting an 1- -{2-5-dimethylaminomethyl-2-(furylmethylthio)-ethyl}- -amino-1-(substituted thio)-2-nitroethylene of the general formula (VI), (VI), wherein, R stands for an optionally substituted alkyl group containing 1 to 4 carbon atoms or an oxoalkyl, aryl, aralkyl, or oxoaralkyl group with an agent capable of splitting off a mercaptan in, an organic solvent, optionally in the presence of an acid-binding agent, then reacting the in situ prepared …
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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 November 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 14, 2006.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.