64868-20-8

Upstream product

• 492-41-1 (1R,2S)-norephedrine 
• 74-88-4 methyl iodide 
• 299-42-3 ephedrine 
• 48115-38-4 norepinephrine 
• 90-81-3 ephedrine 
• 63829-88-9 2-hydroxyamino-1-phenyl-propan-1-ol 
• 100-52-7 benzaldehyde 
• 119-51-7 1-phenyl-1,2-propanedione 2-oxime 
• 5265-18-9 (+/-)-cathinone 
• 26251-08-1 2-nitro-1-phenylpropan-1-ol 
• 552-79-4 (-)-N-methylephedrine 

Downstream Products

• 14212-54-5 (+)-(R,R)-β-methylstyrene oxide 
• 299-42-3 ephedrine 
• 150125-79-4 bis-(2-hydroxy-1-methyl-2-phenyl-ethyl)-methyl-amine 
• 75-50-3 trimethylamine 
• 32908-50-2 ((1S,2R)-2-hydroxy-1-methyl-2-phenyl-ethyl)-trimethyl-ammonium; chloride 
• 40560-98-3 (1S,2R)-1-phenylpropane-1,2-diol 
• 132538-09-1 (1S,2R)-(-)-1-cyclohexyl-1,2-propanediol 
• 1639366-24-7 [(1R,2S)-N,N-dimethylephedrinium][phenylglyoxylate] 
• 1639366-26-9 [(1R,2S)-N,N-dimethylephedrinium][levulinate] 

Relevant academic research and scientific papers

NOVEL METHOD FOR PREPARATION OF AMMONIUM SALTS OF ESOMEPRAZOLE

The present invention relates to a process for the preparation of quartenary ammoniumsalts of esomeprazole. Further, the present invention also relates to the use quartenary ammoniumsalts of esomeprazole for the treatment of gastrointestinal disorders, pharmaceutical compositions containing them as well as the quartenary ammoniumsalts of esomeprazole, as such.

Enantioselective cathodic reduction of some prochiral ketones in the presence of (1R,2S)-(-)-N,N-dimethylephedrinium tetrafluoroborate at a mercury pool cathode

The enantioselective cathodic reduction of some prochiral ketones viz. acetophenone (I), propiophenone (II), butyrophenone (III), valerophenone (IV), isobutyrophenone (V), and pivalophenone (VI) has been accomplished at a mercury pool cathode in N,N-dimethylformamide (DMF)-water (90:10) using tetrabutylammonium fluoroborate (TBA·BF4) as a supporting electrolyte in the presence of (1R,2S)-(-)-N,N-dimethylephedrinium tetrafluoroborate (DET). Cyclic voltammetric investigations have been carried out and a probable mechanism of the process has been presented.