P. Darrigo et al., THE EFFECT OF ABSORBING RESINS ON SUBSTRATE CONCENTRATION AND ENANTIOMERIC EXCESS IN YEAST REDUCTION, Tetrahedron : asymmetry, 8(14), 1997, pp. 2375-2379
The correlation between the enantiomeric excess (e.e.) of the (S)-(+)-
ethyl-3-hydroxybutanoate 2, obtained in the baker's yeast reduction of
ethyl acetoacetate 1, and the concentration of the substrates in the
fermentation mixture has been studied by the use of two different tech
niques (absorbing resins and organic solvents) The presence of resins
undoubtedly influences the enantiomeric excess of the product. (C) 199
7 Elsevier Science Ltd.