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- Draw the major product(s) when the following molecule is reacted with excess NaOEt in EtOH, followed by aqueous acidic work-up. CH;CH,OĊCH(CH,)¿COCH,CH3 CHaShow the product expected when the following unsaturated 8-ketoester is treated with each reagent. OEtIdentify the missing reagents a-f in the following scheme:
- How would you prepare the following compound using a Robinson annulation reaction between a β-diketone and an α, β-unsaturated ketone? Draw the structures of both reactants and the intermediate Michael addition product.Draw the products formed when p-methylaniline (p-CH3C6H4NH2) istreated with following reagent. CH3COCl, AlCl3Identify the best reagents to complete the following reaction. CI o
- Draw the structures of the initially formed enol tautomers in the reactions of propyne and dicyclohexylethyne with dicyclohexylborane followed by NaOHNaOH and H2O2H2O2Show how the following compounds can be prepared from cyclohexanoneWhich reagent(s) would accomplish the synthesis showWn below? NH2 NH2 но. H3CO. A) NaBH4 В) РСС C) LAH D) Na2Cr207 / H2SO4 E) NAOH www w
- Draw the products formed when p-methylaniline (p-CH3C6H4NH2) istreated with following reagent. HClDraw the major product of the following reaction sequence. OH H2CrO4 HO NaBH4 H*/H20 ELOH он H3C* ноStep 2: A hemiacetal formation has a similar mechanism to the hydrate reaction, except 1 equivalent of alcohol is added instead of water. 1² R₂ R₁ LOR3 R₁ R₂ The hemiacetal reaction is also reversible and can also be catalyzed by either acid or base. Hemiacetals are not usually isolated, except in the formation of 5- and 6-membered rings, as often seen in carbohydrate chemistry. Identify the hemiacetal formed from the intramolecular cyclization of the molecule shown. OH H OH R3OH OH OH OH CH₂OH NaOH ?