1004315-80-3Relevant articles and documents
A synthetic hydrochloric acid he spurts he number of method
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Paragraph 0086; 0087, (2017/08/25)
The invention discloses a method for synthesizing tapentadol hydrochloride. The method comprises a reaction route shown in the specification. In the reaction route, R1 is one of halogens, -OH, -OR4, -NO2, -NH2, -NR5R6, -SH and -SR7. A required chiral isomer is directly obtained through a reaction under chiral catalysis, so the method has the advantages of avoiding of problems of a large amount of wastes and environmental protection due to chiral splitting, short route, simple operation, easy industrialization, high raw material utilization rate, great improvement of the yield, cost reduction, meeting of requirements of industrial production of tapentadol hydrochloride, and significant progress.
PREPARATION OF 3-[(1R,2R)-3-(DIMETHYLAMINO)-1ETHYL-2-METHYLPROPYL]PHENOL
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Page/Page column 10, (2008/06/13)
The present invention relates to an improved process for the preparation of 3- [(1R,2R)-3-(dimethylamino)-1-ethyl-2-methylpropyl]phenol monohydrochloride.