Patent ID: 6294069
Filing Date: 2001-09-25
Classification: C25B

Abstract:
Method for preparing chiral 2-aryl or 2-heterocyclyl propionic acids and their esters characterized in that a mixture of a propionic acid derivative with formula ##STR5##in which R.sub.3 represents a radical of formula: ##STR6##and Hal represents a halogen atom, or R.sub.3 represents an aromatic or heterocyclic halogen derivative is electrochemically reduced in the presence of a nickel complex as a catalyst and a supporting electrolyte in an electrolysis cell provided with electrodes, in an organic solvent medium, then either the product is hydrolyzed to obtain the chiral-2-aryl or 2-heterocyclyl propionic acid or transesterified to obtain the corresponding ester.