Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 27, 2010
Patent Application Number
12466457
Date Filed
May 15, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method in which a crude chlorinated product of a phenylpropanolamine, preferably prepared by reacting thionyl chloride with the phenylpropanolamine, is purified by contacting an aqueous solution of the crude product with carbon. The carbon-treated solution of the crude chlorinated product of a phenylpropanolamine is catalytically hydrogenated to the corresponding amphetamine derivative.
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