Preparation of enantiomerically pure (R)- and (S)-3-amino-3-Phenyl-1-propanol (cas 122-97-4) via resolution with immobilized penicillin G acylase☆

Add time:09/24/2019    Source:sciencedirect.com

Ethyl 2,4-dioxo-4-phenylbutyrate, obtained by condensation of acetophenone with diethyl oxalate, was converted to 3-oxo-3-phenyl-1-propanol in 90% yield by reaction with baker’s yeast. Reductive amination with sodium cyanoborohydride in the presence of ammonium acetate gave the racemic 3-amino-3-phenyl-1-propanol in 65% yield. Enzymatic resolution of the corresponding N-phenylacetyl derivative with penicillin G acylase, immobilized on an epoxy resin gave (S)-amide and (R)-amino alcohol in high enantiomeric purity (ee >99%) and >45% yields for each enantiomer.

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