40 research outputs found
Chemo-enzymatic deracemization methods for the preparation of enantiopure non-natural alpha-amino acids
No full textThe complete transformation of a racemate into one single enantiomer is defined as a deracemization. In amino acid chemistry, chemo-enzymatic deracemization is possible due to the ease of racemization of alpha-amino acids and the numerous enantioselective enzymatic systems operating on this class of compounds. Deracemization by dynamic kinetic resolution is a process in which the enantioselective catalyst is coupled with a second one promoting racemization of the reagent but not of the product. Deracemization by stereo-inversion is a convergent process in which the transformed
isomer is finally converted into its enantiomer. These transformations can be applied for the preparation of enantiomerically pure alpha-amino acids of non-natural configuration or of l-alpha-amino acid of non-natural structure
(S)-2-Methyl-3-phenylpropanthiol hemisuccinate: a new chiral material with partial kinetic resolution from baker's yeast incubation of racemic 2-methyl-3-phenylpropanethiol
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On the Use of (4S,5S)-2-Phenyl-4,5-Dimethyl-4-Formyl-4,5- Dihydro-Oxazole in the Synthesis of N-Protected 2,3,4,6-Tetradeoxy-4-C-Methyl-4-Amino-L-Hexose Derivatives
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The effect of absorbing resins on substrate concentration and enantiomeric excess in yeast reduction
No full textExctractive Biocatalysis: a powerful tool in selectivity control in yeast biotransformations
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