Process for the preparation of (s)- or...

Details Process for the preparation of (s)- or... Process for the preparation of (s)- or...

C - Chemistry, Metallurgy

12

N

C12N 15/55 (2006.01) C07C 231/06 (2006.01) C07C 235/06 (2006.01) C12N 1/20 (2006.01) C12N 1/21 (2006.01) C12N 9/80 (2006.01) C12P 7/42 (2006.01) C12P 41/00 (2006.01)

Patent

CA 2259954

Described are new micro-organisms and a new enzyme capable of using as sole source of nitrogen the propionic acid amide of formula (VI), in racemate form or as optically active isomers. Described also is a method of preparing (S) - or (R)-3,3,3-trifluoro-2-hydroxy-2-methylpropionic acid of formulas (I) and (II) starting from trifluoroaceto-acetic ester. The first three process steps are chemical, the fourth process step microbiological.

L'invention concerne de nouveaux microorganismes et un nouvel enzyme aptes à valoriser l'amide d'acide propionique de la formule (VI) sous la forme de racémate ou de son isomère optiquement actif comme unique source d'azote. L'invention concerne également un procédé de production de l'acide (S)- ou (R)-3,3,3-trifluoro-2-hydroxy-2-méthylpropionique de formules (I) et (II) à partir d'ester d'acide trifluoroacétique. Les trois premières étapes sont réalisées par voie chimique et la quatrième par voie microbiologique.

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