Chiral α-Sulphinyl Hydrazones as Effective Reagents for Stereoselective Aldol-type Condensation
The stereoselective aldol-type synthesis of optically active β-hydroxy hydrazones and β-hydroxy ketones mediated by chiral α-sulphinyl hydrazones is described.In some cases a good degree of enantioselectivity (up to 88percent) is achieved.The factors affe