3.Aldol Condensation a-H的羟醛缩合反应 The aldol condensation OH R-C-CH,-R' R-C-CH,-R' R-C-CH,-R' Hor OH heat R-C-CH,-R R-C-CH-R R-C-C-R'+H,O H*or OH 0 0 0 ketone or aldehyde adoprodut a,B-unsaturated ketone or aldehyde Copyright 2005 Pearson Prentice Hall,Inc. Enolate ion attacks a C=O and the alkoxide is protonated.The net result is addition. 3. Aldol Condensation α-H的羟醛缩合反应 Enolate ion attacks a C=O and the alkoxide is protonated. The net result is addition