Predict the two possible Aldol condensation products and their dehydration products. (i.e. show the Aldol products AND the dehydration products) KOH, H₂O, heat
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- Predict the products of aldol condensation, followed by dehydration, of the followingketones and aldehydes. c) cyclohexanone4. Give the structures of the aldol products that form when each of the following compounds or mixtures is treated with NAOH. a) Butanal b) Cyclopentanone c) Acetophenone d)-Chlorobenzaldehyde and 2,2-dimethylcyclohexanoneBenzalacetone is a side product formed in the aldol condensation of dibenzalacetone. Show the reaction mechanism of how this side product, Benzalacetone, is formed.
- What is the product formed when each dicarbonyl compound undergoes an intramolecular aldol reaction, followed by dehydration.Complete the following multi step synthesis by showing the major intermediate products and the reagents nessesary for each stepa) Show the reaction mechanism for the following multistep transformations. Show all reagents and the intermediate structures. Br OH from and b) Propose a correct retrosynthetic analysis of (E)-1,3-di(furan-2-yl)prop-2-en-1-one following an aldol condensation reaction.
- Draw the aldol product for the reaction of the aldehyde shown with NaOH. Assume the reaction is run under conditions that allow the reaction to stop before dehydration. u H NaOHA "condensation" reaction involves the loss of a small neutral molecule as a follow-up step to an addition reaction. The product is an a,ß-unsaturated aldehyde (or ketone). (*In aldol condensations, the small neutral molecule is water.) Which of the three products shown is the correct aldol condensation products of the reaction shown. Write the mechanism for the dehydration step. Assume the reaction mixture still contains catalytic base. OH NaOH H O adol addition = enolates + aldehyde loty Condensation H or OH or H (H₂O + OH)Draw the major product of the aldol condensation reaction between two of these ketones with the conditions provided. Ignore inorganic byproducts. O 1. NaOH, heat 2. Neutralizing work-up Drawing o