1309956-63-5

Upstream product

• 17408-16-1 3'-nitropropiophenone 
• 1309956-64-6 (S)-3-(dimethylamino)-2-methyl-1-(3-nitrophenyl)-propan-1-one (2R,3R)-O,O'-dibenzoyltartrate 
• 50-00-0 formaldehyd 
• 506-59-2 N,N-dimethylammonium chloride 
• 53013-01-7 3-(dimethylamino)-2-methyl-1-(3-nitro-phenyl)-propan-1-one 

Downstream Products

• 175591-09-0 tapentadol hydrochloride 
• 1309956-65-7 (S)-3-(dimethylamino)-2-methyl-1-(3-aminophenyl)-propan-1-one 
• 1309956-66-8 (2S,3R)-3-(3-amino-phenyl)-1-(dimethylamino)-2-methyl-pentan-3-ol 
• 1309956-67-9 C₁₈H₂₂F₆N₂O₃ 
• 1309956-68-0 C₁₆H₂₃F₃N₂O 
• 1268635-18-2 (2R,3R)-dimethyl-[2-methyl-3-(3-amino-phenyl)-pentyl]-amine 

Relevant academic research and scientific papers

A synthetic hydrochloric acid he spurts he number of method

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.

NEW PROCESS FOR THE PREPARATION OF TAPENTADOL AND INTERMEDIATES THEREOF

The present invention refers to a new process for the synthesis of tapentadol comprising the quantitative resolution of the racemic mixture (V) to obtain the stereoisomer of (S)-3-(dimethylamino)-2-methyl-l-(3-nitrophenyl)-propan-l-one (VII) according to