Enantioselective reduction of the carbonyl group of three phenylglyoxylic acid esters (methyl, ethyl, and n-propyl esters, 2-4) was conducted using blended plant materials (roots of carrot, beetroot, celeriac and parsley; apple). All used biocatalysts transformed these esters to the corresponding mandelic acid esters with high yield, preferably into the respective R-enantiomer. Butanedione addi...

To determine whether exposure to low levels of styrene (below 110 mg/m3) causes acute behavioural effects and symptoms that may be related to concentrations of styrene in air or urinary mandelic acid or both, 12 men occupationally exposed to styrene were studied and compared with a reference group of 10 unexposed men. Simple reaction time was measured before and after work and information about...

Abstract ( R ) - mandelic acid is an industrially important chemical, especially used for producing antibiotics. Its chemical synthesis often uses highly toxic cyanide to produce its racemic form, followed by kinetic resolution with 50% maximum yield. Here we report a green and sustainable biocatalytic method )-mandelic from easily available styrene, biobased L- phenylalanine, renewable feedsto...

Abstract Two vanadium complexes of mandelic acid having [Fe( bpy ) 3 ] 2+ as counterion, ][V 2 O 4 ( rac - mand ]·4.9H O·0.1CH CN 1 , FeV L and (H O)[Fe( [V 7 S ·28H = 2,2’-bipyridine, 2– mandelato ligand, C 8 H 6 have been synthesized characterized by single crystal X-ray diffraction spectral methods. The FeSO — —KVO —H O—CH system exhibits a stereospecific behaviour: while from the including ...