STEREOSELECTIVE PROCESS FOR PREPARING ASYMMETRIC MALATHION AND ANALOGS FOR PHARMACEUTICAL AND AGRICULTURAL USE

摘要

The preparation of enantiomeric excess of a first enantiomer of malathion or an analog thereof from a solution of racemic malathion or an analog thereof, by stereoselectively hydrolyzing the first enantiomer to produce one or more monoacid enantiomers of the first enantiomer using an effective amount of a hydrolyzing agent and then subjecting the monoacid enantiomers to esterfication.