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- 1-ethoxybut-2-yne is the desired product of a synthesis. Using the principles of retrosynthetic design, draw Compounds A and B in the provided boxes in parts 1 and 2. Be sure to consider the entire synthesis when proposing the structures of both A and B. If you need a leaving group, use Br. NaOCH₂CH3 Compound A. Compound B 1) NaH 2) CH3Br 1-ethoxybut-2-yne2. Propose a synthetic strategy for the following reactions. Make sure to include the structures of all intermediate products. Ph ÇOCH,4. Provide the structure of the intramolecular aldol condensation/dehydration product that results when 2,6-heptanedione is heated in base.
- 4. Complete the retrosynthetic scheme below, involving a Friedel-Crafts acylation, by filling in all necessary reactants and reagents. mely ?3. Show two different ways you would make this compound via a Grignard reagent, beginning each time with any alkyl or aromatic halide, and any other organic and inorganic reagents. H3C H3C -OH4. What are the reactants that lead to this aldol product? 5. Synthesize the following from cyclopentanone and any other needed reagents. -b (a) (b) سمل -0₂CCH3
- 1 Provide a viable synthesis for the compounds below, use only ben zene, inorganic reagents, and organic reagents of 3 carbon or less. -OH Dol c) use the malonic ester route to prepare the acid shown below. Starting from cyclohexyl bromide and other reagents of 3 carbon or less. ноги Co₂ Et. T CO₂HPlease give the appropriate reagents FOR 3 and 4 to complete the following synthesis. ******** Keep mind, H2/PD does NOT go into 3 and KMNO4 does NOT2. Grignard reagents are sources of "“carbanion", a potent base and nucleophile. Write a reaction that shows what happens when methyl magnesium iodide is reacted with a) water, and b) formaldehyde. Show the products expected before any acidification of the reaction product.
- 1. Provide a detailed mechanism for the synthesis of dibenzalacetone. 2. What product would be formed if only 1 equivalent of acetone was use H. NaOH 2.Provide a synthetic approach for the following reactions. Make sure to do the retrosynthetic analysis and then provide the forward reaction sequence. -OH you3. For the equilibrium shown below, is the Keq greater or less than 1? OH CH3 C CH₂ 0 || CH3 CCH3