| abstract |
The invention relates to a process for the production of enantiomerically puren1,3-dioxolan-4-one or 1,3-oxathiolan-5-one derivativesncharacterized in that containing a mixturenenantiomeric 1,3-dioxolan-4-one or 1,3-oxathiolan-5-one derivativesnand a hydrolytically active enzyme in the presence of anNucleophils are brought into contact and a dioxalon / oxathiolanone ringnof an enantiomer by the hydrolyticneffective enzyme is cleaved and after the cleavage of thenan enantiomer, the uncleaved enantiomer of 1,3-dioxolan-4-onenor 1,3-oxathiolan-5-one derivative is isolated. |