Stereocontrolled Conversion of 3-Unsubstituted Isoxazole Compounds into Z-β-Siloxyacrylonitriles. A New Method for the Regioselective Synthesis of β-Enaminoketones

Abstract
The stereoselective synthesis of Z-β-siloxyacrylonitriles via base-induced ring cleavage of isoxazole precursors is described. Z-β-siloxyacrylonitriles react with organolithium compounds to give high yields of β-enaminoketones 1.