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Reaction of an alcohol with thionyl chloride in the presence of a tertiary
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- Write a mechanism that accounts for the formation of ethyl isopropyl ether as one of the products in the following reaction. CI OEt HCI EtOHarrow_forwardThe following substances can be prepared by a nucleophilic addition reaction between an aldehyde or ketoneand a nucleophile. Identify the reactants from which they were prepared. If the substance is an acetal, identifythe carbonyl compound and the alcohol; if it is an imine or enamine, identify the carbonyl compound and theamine. You do not have to consider stereochemistry. In cases where there is more than one answer, just giveone. Use Grignard reagents when an organometallic reagent is required. Draw the Grignard reagent as acovalent magnesium bromide.arrow_forwarda) Cycohexanone reacts with 1,3-propanediol under acid catalysis to form the cyclic acetal. Write down the reaction mechanism and explain why the use of cyclic acetals as protecting groups is preferred over open- chain acetals. b) Eugenol (see below) is made from cloves. Give the structural formulas of the products which are formed after reaction of eugenol with i) BH3, then H2O2 / NaOH or after reaction with ii) acetic anhydride. OH Eugenolarrow_forward
- 5. Optically pure 2-octyl sulfonate was treated with varying mixtures of water and dioxane, and the optical purity of the resulting product (2-octanol) was found to vary with the ratio of water to dioxane, as shown in the following table (J. Am. Chem. Soc. 1965, 87, 287-291). Given that dioxane possesses fairly nucleophilic oxygen atoms, provide a complete mechanism that explains the variation in in the product's optical purity due to changes in solvent composition. Hint, the solvent is doing more here than just dissolving.. it is partaking in the reaction. Solvent Ratio (water : dioxane) 25:75 50: 50 75: 25 100 :0 Optical purity of (S)-2-octanol 77% 88% 95% 100% H20 он (R)-2-Octyl sulfonate (optically pure) (S)-2-Octanol (dioxane)arrow_forwardProvide a detailed, stepwise mechanism for the acid-catalyzed reaction of 2-butanone with ethylene glycol to produce an acetal.arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning