Propiophenone diasteroselective

Furthermore, the diasteroselectivity observed using catalyst (S,S)-62 depends on the nature of the latent trichlorosilyl enolates. Thus, propiophenone-derived enolate 65 possessing the Z-configuration reacts with benzaldehyde in presence of 15 mol% of (SyS) 62 to afford the syn adduct 66 with very high enantioselectivity. 

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