2-pyrimidyl alkanesulfonates and methods for their preparation and use
CA 1251796 A · Owner: Eastman Kodak Company · Inventors: Wilson, Burton D.; Slusarek, Wojciech; Sandefur, Louise O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
i-, 2-PYRIMIDYL ALKANESULFONATES AND, METHODS FOR THEIR PREPARATION AND USE Abstract, Novel 2-pyrimidyl alkanesulfonates are prepared by reacting a 2-hydroxypyrimidine acid salt with an alkanesulfonyl chloride in the presence of an acid acceptor. The novel 2-pyrimidyl alkanesulfonates are advantageously employed to prepare 1-(cyanoalkyl)-4-(2-pyrimidyl)piperazines by reacting them with a novel 1-(cyanoalkyl)piperazine in the presence of an acid acceptor.
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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 March 28, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 28, 2006.
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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.