C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 333/20 (2006.01) C07B 57/00 (2006.01)
Patent
CA 2493451
The invention relates to a method for the production of enantiomer-pure (S)-3- methylamino-1-(thien-2-yl)propan-1-ol of formula (II-S) by obtaining (S)-3- hydroxy-3-thien-2-ylproipionitril from its enantiomer mixture with the R- isomer and by subsequently reacting (S)-3-hydroxy-3-thien-2-ylpropionitril with hydrogen and methylamine in the presence of a catalyst in order to obtain (II-S).
L'invention concerne un procédé pour la production de (S)-3-méthylamino-1-(thién-2-yl)propan-1-ol énantiomériquement pur de formule (II-S), par production de (S)-3-hydroxy-3-thién-2-ylpropionitrile à partir de son mélange d'énantiomères avec l'isomère R, puis réaction du (S)-3-hydroxy-3-thién-2-ylpropionitrile avec de l'hydrogène et de la méthylamine en présence d'un catalyseur pour donner (II-S).
Basf Aktiengesellschaft
Robic
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