Enantioselective synthesis of sulfoxides catalysed by an oxidase–peroxidase bienzymatic system
摘要:
We have devised a new bienzymatic oxidase-peroxidase system in which hydrogen peroxide is produced from air by a D-amino acid oxidase. The generated hydrogen peroxide is instantly used for asymmetric oxygenation of sulphides by a peroxidase. In the absence of peroxidase no spontaneous oxidation is observed, indicating that hydrogen peroxide production by the D-amino acid oxidase is fully controlled. Arylmethyl sulfoxides can be synthesised on a preparative scale with high yields and good enantiomeric excess. (C) 2002 Published by Elsevier Science Ltd.