Parallel kinetic resolution of an oxazolidinone using a quasi-enantiomeric combination of [D,13C]-isotopomers of pentafluorophenyl 2-phenyl propionate.

Parallel kinetic resolution of Evans' phenylglycine derived oxazolidinone using an equimolar combination of quasi-enantiomeric active esters (derived from [D,13C]-labeled 2-phenylpropionic acid) was achieved. The levels of stereocontrol were high, leading to products with predictable configurations.