OH R-CH-CH.+1R-CH2H excess I2 R—C-O- -OH HCL↓ (one less carbon) Copyright 2005 Pearson Prentice Hall,Inc. Condensation with Aldehyde or Ketone Enolate ion attacks a C=O and the alkoxide is protonated.The net result is addition. OH ROH RO enolate ketone addition productCondensation with Aldehyde or Ketone Enolate ion attacks a C=O and the alkoxide is protonated. The net result is addition