Abstract

Sulphur heterocyclic β-hydroxy nitriles are prepared from the suitable aldehyde and (trimethylsilyl)acetonitrile in the presence of lithium acetate at good yields. Burkholderia cepacia lipase allowed the formation of the both enantiomers of β-hydroxy nitriles in highly enantiopure forms (ee 99%) through acylation of a racemic mixture and alcoholysis of the acylated enantiomer in tert-butyl methyl ether.

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