11. The reaction is classified as an aldol condensation . 12. The Michael-aldol sequence involves a Michael addition reaction and an aldol condensation . 13. Enols are commonly used in condensation reactions, including the Claisen condensation and the aldol condensation reactions. 14. This tunnel aided intramolecular aldol condensation provides the first cyclization when the chain is still in the tunnel. 15. :: So then, disregarding any Michael reactions, these would be the possible aldol condensation products? 16. Ionone can be heterogeneous catalyst and serves as an example of an aldol condensation followed by a rearrangement reaction. 17. Two main types of reactions can occur with acetyl cyanide as a reactant; aldol condensation and enolate substitution. 18. Occasionally an aldol condensation is buried in a multistep reaction or in catalytic cycle such as the one sketched below: 19. Lithium enolates are widely used as nucleophiles in carbon-carbon bond formation reactions such as aldol condensation and alkylation. 20. Aldol condensation of acetone and ethyl acetoacetate gave ?-keto-ester "'3 " '.